This study aimed to explore the psychosocial adaptation processes and coping methods among patients with diabetic retinopathy (DR), emphasising the importance of understanding their lived experiences.
A qualitative study using semi-structured interviews.
A tertiary eye hospital in northeastern Iran.
The participants comprised patients with DR, their families and healthcare professionals.
Qualitative data were analysed based on transactional stress theory using deductive thematic analysis to identify psychosocial adaptation concepts.
65% of participating patients had DR for more than 5 years. Analysis of 49 patient and 14 healthcare professional interviews revealed 6 key themes encompassing 15 categories and 33 subcategories: primary appraisal (threat perception, motivational assessment, self-blame), secondary appraisal (perceived control over disease outcomes, perceived control over emotions, self-efficacy), coping efforts (problem management, emotional regulation), meaning-based coping (positive reassessment, reinforcement of religious beliefs, constructive approach), moderators (seeking information, all-encompassing assistance) and adaptation (emotional health, individual-social functioning).
The analysis revealed that deficits in disease awareness, financial and systemic barriers and emotional distress significantly impeded adaptive coping. Conversely, self-efficacy, social and organisational support, and meaning-based coping strategies were key facilitators. Our findings suggest that facilitating positive psychosocial adjustment in patients with DR may require interventions that address these specific barriers and leverage these facilitators, such as providing comprehensive disease knowledge and constructing robust support systems. This study highlights the potential value of a holistic care approach that integrates medical treatment, targeted patient education and psychological support to improve the overall quality of life for these patients.
This study aims to assess the burden and predictors of age-related macular degeneration (AMD) among older age patients with diabetes attending comprehensive specialised hospitals in Northwest Ethiopia.
A multicentre cross-sectional study was conducted among older patients with diabetes using a systematic random sampling technique.
The study was conducted at five comprehensive specialised hospitals in Northwest Ethiopia from 8 May to 8 June 2023.
The study included 832 diabetic individuals aged 40 years and above.
Data were collected using a pretested structured questionnaire and physical examinations.
In this study, a total of 832 participants were involved, with a response rate of 96.85%. The burden of AMD was 15.4% (95% CI 13.0% to 18.0%). Male sex (adjusted OR (AOR) 2.04, 95% CI 1.17 to 3.56), older age (AOR 6.91, 95% CI 3.17 to 15.08), diabetes duration of 10 and more years (AOR 3.00, 95% CI 1.91 to 4.69), higher body mass index (AOR 2.56, 95% CI 1.15 to 5.71), presence of hypertension (AOR 2.45, 95% CI 1.56 to 3.85) and family history of diabetes mellitus (DM) (AOR 2.29, 95% CI 1.40 to 3.76) were positively associated with AMD.
This study found that the prevalence of AMD among patients with diabetes was 15.4%. Older age, male sex, longer DM duration, higher body mass index, presence of hypertension and family history of DM were significantly associated with AMD. Targeted screening of at-risk individuals for AMD, public health awareness campaigns focusing on these factors and further research to understand the burden and underlying mechanisms of these associations with AMD are recommended.
To explore how parents of children with de novo retinoblastoma (RB) experience the diagnostic process and acute treatment phase, and to identify factors that may support parental coping and adaptation.
A qualitative interview study using reflexive thematic analysis.
National Retinoblastoma Unit at Aarhus University Hospital, Denmark.
Thirty-one parents (21 mothers, 10 fathers) of 21 children diagnosed with de novo RB were recruited via hospital follow-up clinics and a support group day.
For most parents, the diagnostic process was short. In cases of diagnostic delay, parents described frustration and guilt due to missed symptoms. Receiving the RB diagnosis was described as a surreal experience, accompanied by feelings of shock, grief and loss of control. Parents faced challenges in adapting to rapid medical decisions and the unfamiliar demands of hospital protocols. However, meeting the clinical experts was a relief, as parents felt they were in capable hands, experiencing empathetic communication and a clearly framed treatment plan. Parents emphasised the importance of support systems, including family, healthcare professionals and the child’s resilience, as crucial for coping with and managing the diagnosis.
Parents faced a sudden and disruptive transition from symptom recognition to life-altering diagnosis and treatment. While professional care and communication were experienced as supportive, they did not eliminate the emotional impact. Clinical pathways should prioritise early validation of parental concerns and provide transparent communication, both prior to referral and throughout treatment. Future research should examine longer-term parental adjustment and identify interventions that support emotional resilience beyond the acute phase.
Retinal neurodegeneration has recently been shown to occur in tandem with neurodegenerative disease. In the expectation that disease-modifying treatments for Alzheimer’s disease (AD) and Parkinson’s disease (PD) will soon become available, it will be important to have clinically useful biomarkers for neurodegenerative disease subtyping to guide early diagnosis, inform on prognosis and stratify subgroups for treatment. Understanding differences in detectable retina changes in individuals with different neurodegenerative disease subtypes is therefore fundamental. The emerging field of oculomics posits that systemic and neurodegenerative disease can be characterised using detectable ocular biomarkers within retinal diagnostics. The aim of this review is to compare the performance of common retinal imaging modalities in neurodegenerative disease detection and subtyping.
This protocol has been reported in accordance with the PRISMA-P (Preferred Reporting Items for Systematic Reviews and Meta-Analyses Protocols) guidelines. A comprehensive literature search will be conducted in PubMed, Web of Science and Scopus. Eligible studies will have reported using retinal diagnostic tools defined as optical coherence tomography (OCT), OCT angiography (OCTA), colour fundus photography (CFP) and electroretinography (ERG) in individuals with neurodegenerative diseases, including AD, PD, dementia with Lewy bodies, frontotemporal dementia, vascular dementia and mild cognitive impairment. There will be no time restrictions placed in these searches. Studies not written in English, not peer-reviewed and grey literature will be excluded. Screening for eligible studies and data extraction will be conducted by two independent reviewers, using predefined inclusion criteria. Any disagreements between the reviewers will be settled by discussion, and if required, third senior reviewer arbitration. The systematic review primary outcome is the performance of retinal diagnostics, namely OCT, OCTA, CFP and ERG in the detection and subtyping of aforementioned neurodegenerative diseases. The secondary outcome is to evaluate the association between changes in retinal diagnostic features (eg, retinal layer thicknesses) and neurodegenerative disease subtypes. The quality of the included studies will be assessed using the GRADE (Grading of Recommendations Assessment, Development and Evaluations) tool. A narrative synthesis approach will be used to analyse the results, with meta-analysis performed if there is sufficient data.
Ethical approval for this manuscript is not required, as this is a protocol for a systematic review and therefore no data are to be collected. Findings for this systematic review will be disseminated as a peer-reviewed publication and presentations at national and international symposiums including International Lewy Body Dementia Conference, International Congress of Parkinson’s Disease and Movement Disorders, The Association for Research in Vision and Ophthalmology.
CRD42023434024.
Māori experience higher rates of disease and poorer health outcomes than non-Māori, highlighting inequities in the health system in Aotearoa New Zealand (Aotearoa). Māori eye health has historically been under-researched. Kaupapa Māori (by Māori, with Māori, for Māori) approaches to research have been recognised as critical for developing and informing equitable and inclusive health service solutions for Māori. This scoping review aims to summarise the literature on interventions to improve Māori eye health and investigate the extent to which Kaupapa Māori approaches have been used within these studies.
This scoping review will be reported according to the Preferred Reporting Items for Systematic reviews and Meta-Analyses extension for Scoping Reviews Checklist and informed by Kaupapa Māori research and strengths-based methodologies. Electronic searches of MEDLINE (Ovid), Embase (Ovid) and Google Scholar were performed using keywords focused on Māori eye health, Kaupapa Māori and eye health interventions. The search was performed by an information specialist without language or time restrictions. Peer-reviewed and grey literature reports will be included if they report any intervention that aimed to improve eye health for Māori. Two reviewers will independently screen abstracts and full texts, followed by data charting in Covidence. Data items will include publication, study and intervention characteristics and whether a Kaupapa Māori approach was used, in which case the characteristics of the approach will be charted. The responsiveness to Māori of each included study will be assessed using the MĀORI framework and CONSIDER statement. Data will be summarised in tables, graphs, maps and text.
To the best of our knowledge, the scoping review is the first to investigate published and publicly accessible literature related to interventions for improving Māori eye health and Kaupapa Māori approaches. Ethical approval is not required for this review as we will include information available in the public domain. We anticipate that the findings will be useful for Hauora Māori providers, organisations, education training and research providers of eyecare services. The scoping review also informs a more extensive project examining Indigenous perspectives in optometry to achieve equitable outcomes. Dissemination will include publication of the scoping review findings in an open-access peer-reviewed journal, as well as presentations at conferences, to Māori community and service organisations, scholars and staff working in the field of Māori eye health.
Open science framework (https://osf.io/4vqaw/). On 27 February 2025.
This study aimed to assess the prevalence of eye care service utilisation and associated factors among healthcare professionals in Gondar city, northwest Ethiopia.
An institution-based cross-sectional study was conducted using a systematic random sampling method.
The study was conducted at public healthcare facilities in Gondar city, orthwest Ethiopia.
The study included 607 healthcare professionals who worked in public healthcare facilities in Gondar ity.
Data were collected using personal interview using a pretested and structured questionnaire.
A total of 607 study participants took part in this study with a response rate of 91.97%. The median age of the participants was 32 years (IQR 30–36; range ±6). The proportion of eye care services utilisation in this study was 27.68% (95% CI 24.11% to 31.25%). Being masters or higher degree educational status (adjusted OR (AOR)=4.81, 95% CI: 2.01, 11.46), having more than ten years of working experience in healthcare (AOR3.01, 95% CI: 1.51 to 5.99), being affiliated with general hospital (AOR 4.02, 95% CI 1.51 to 10.68) and specialised hospital (AOR 3.02, 95% CI 1.55 to 5.89), obtaining prior eye healthcare training (AOR 1.90, 95% CI 1.20 to 3.00) and having a higher monthly household income (AOR 3.59, 95% CI 1.89 to 6.81) were positively associated with eye care service utilisation.
This study revealed that the proportion of eye care service utilisation among study participants was low. Holding a master or higher degree, more than 10 years of working experience in healthcare, affiliation with general or specialised healthcare facility, obtaining prior eye healthcare training and higher monthly household income were significantly associated with a good level of eye care service utilisation.
To assess the capability of a convolutional neural network trained by transfer learning on anterior segment optical coherence tomography (AS-OCT) images, Placido-disk corneal topography images and external photographs to predict age and biological sex.
Development of a deep learning model trained on retrospectively collected data using transfer learning.
A multicentre secondary care public health trust based in London.
We included 557,468 scans from 40,592 eyes of 20,542 patients. Data were extracted from all patients who underwent MS-39 imaging within our trust from October 2020 to March 2023.
Primary outcome measures for biological sex classification included accuracy, precision, recall, F1-score and area under the receiver operating curve (ROC-AUC). Primary outcome measures for age prediction were Pearson correlation coefficients (r), coefficients of determination (R²) and the mean absolute error (MAE) to evaluate the predictive performance. The secondary outcome was to visualise and interpret the model’s decision-making process through the construction of saliency maps.
For age prediction, the MAEs for the Placido, AS-OCT and external photograph models were 5.2, 5.1 and 6.2 years, respectively. For gender classification, the same models achieved ROC-AUCs of 0.88, 0.73 and 0.81, respectively. No difference in performance was found in the analysis of corneas with pathological topography. The saliency maps highlighted the peri-limbal cornea for age prediction and the central cornea for gender discrimination.
Our study demonstrates that deep learning models can extract age and gender information from anterior segment images. These findings support the concept that the anterior segment, like the retina, encodes important biological information. Future research should explore whether these models can predict specific systemic conditions.
Glaucoma is a leading cause of irreversible blindness worldwide. Early detection and continuous monitoring are essential to preventing vision loss, yet traditional diagnostic tools remain largely inaccessible in low-resource settings.
This scoping review aimed to map the existing evidence on the use of portable devices for the detection, diagnosis and monitoring of glaucoma.
We conducted a scoping review in accordance with the Joanna Briggs Institute Manual and Preferred Reporting Items for Systematic Reviews and Meta-Analyses extension for Scoping Reviews guidelines. A comprehensive search was performed across major databases to identify studies that evaluated handheld tonometers, portable fundus cameras and visual field testing devices. Data were extracted on study design, population characteristics, devices used, comparators and reported outcomes.
A total of 216 studies published between 1975 and 2024 were included. Most studies (90.3%) were method agreement studies, primarily focused on intraocular pressure (IOP) devices. Only two studies evaluated all three glaucoma assessment domains (IOP, visual fields and fundus imaging). Most studies were conducted in high-income countries, with a smaller number from low- and middle-income countries. Despite variability in performance, many devices demonstrated acceptable agreement with gold standard methods and were assessed in a range of clinical and community settings.
This review highlights the range and characteristics of portable glaucoma devices and their potential for enhancing access to diagnosis and monitoring, particularly in underserved settings. However, the predominance of method agreement studies and the limited integration of multimodal assessments point to gaps in the literature. Future research should focus on comprehensive diagnostic pathways using multiple portable tools and on expanding evaluations in low-resource settings to inform policy and service planning.
This study aims to determine the incidence and impact of ocular injuries among the different combat sports disciplines of boxing, mixed martial arts (MMA), kickboxing and Muay Thai in Texas, USA.
A case–control study was conducted to analyse retrospective postmatch physical reports from combat sports matches that took place in the state of Texas from January 2019 to January 2022. Ocular injuries and other match characteristics such as sport type and match outcome were identified by postmatch physical reports. Postmatch physical reports were collected from the Texas Department of Licensing and Regulation database. Statistical analysis was used to stratify injuries and compare the impact of injuries on match outcome.
Combat sports fighters in Texas, USA.
3070 participants were included in the study. Participants were fighters who participated in combat sports matches in Texas, USA, between January 2019 and January 2022.
The original plan was to measure the incidence of ocular injuries across different combat sports including boxing, MMA, kickboxing and Muay Thai. However, due to a limited sample size of kickboxing and Muay Thai matches, the ocular injury incidence was only measured for boxing and MMA. The association between ocular injury and match outcome was assessed using 2 statistical analysis.
The respective incidence rates of ocular injuries in boxing and MMA were 9.7 and 12.2 injuries per 100 matches. The association between ocular injury and match outcome (win, lose or draw) was statistically significant in boxing but not statistically significant in MMA matches.
Our findings revealed that ocular injuries are significantly associated to losing a boxing match (p=0.011), but not associated to match outcome in MMA (p=0.232). Additionally, MMA matches report a larger variety of ocular injuries compared with boxing matches.
Diabetic retinopathy (DR) in pregnancy can cause blindness. National guidelines recommend at least one eye examination in early pregnancy, then ideally 3-monthly, through to the postpartum for pregnant women with pregestational diabetes. Here we examined adherence rates, barriers and enablers to recommended DR screening guidelines.
Cross-sectional survey study, as part of a larger prospective cohort study.
Participants were recruited from two tertiary maternity hospitals in Melbourne, Australia.
Of the 173 pregnant women with type 1 (T1D) or type 2 diabetes (T2D) in the main cohort study, with an additional four who participated solely in this survey study, 130 (74.3%) completed the survey.
This study calculated rates of adherence to guideline-recommended DR screening schedules and collected data on the enablers and barriers to attendance using a modified Compliance with Annual Diabetic Eye Exams Survey. Each of the 5-point Likert-scale survey items was compared between adherent and non-adherent participants using the Wilcoxon rank-sum test and logistic regression models were constructed to quantify associations as ORs.
A retinal assessment was undertaken at least once during pregnancy in 86.3% of participants, but only 40.9% attended during their first trimester and only 21.2% attended the recommended number of examinations. Competing priorities were the main barriers to adherence, with eye examinations ranked as the fourth priority (IQR 4th–5th) among other health appointments during pregnancy. Meanwhile, knowledge of the benefits of eye screening examinations, eye-check reminders and support from relatives was identified as enablers.
Despite the risk of worsening DR during pregnancy, less than half of the participants adhered to recommended screening guidelines, suggesting that eye health is not a priority. Proactive measures to integrate care are needed to prevent visual loss in this growing population.
Inherited retinal diseases (IRDs) are a broad range of diseases associated with abnormalities/degeneration of retinal cells. We aimed to identify the top 10 Australian research priorities for IRDs to ultimately facilitate more meaningful and potentially cost-effective research.
We conducted a James Lind Alliance priority setting partnership that involved two Australian-wide surveys and online workshops.
Australia-wide.
Individuals aged 16 years or older were eligible to participate if they had an IRD, were caregivers of an individual with an IRD or were health professionals providing care to this community.
In Survey 1, we gathered participants’ unanswered questions about IRDs. We grouped these into summary questions and undertook a literature review to verify if they were truly unanswered (ie, evidence uncertainties). In Survey 2, participants voted for the uncertainties that they considered a priority. Top-ranked uncertainties progressed for discussion and final prioritisation in two workshops.
In Survey 1, we collected 223 questions from 69 participants. We grouped these into 42 summary questions and confirmed 41 as evidence uncertainties. In Survey 2, 151 participants voted, with the 16 uncertainties progressing to final prioritisation. The top 10 priorities, set by the 24 workshop participants, represented (1) treatment/cure; (2) symptoms and disease progression; (3) psychosocial well-being and (4) health service delivery. The #1 priority was for treatment to prevent, slow down or stop vision loss, followed by the #2 priority to address the psychological impact of having an IRD.
The top 10 research priorities highlight the need for IRD research that takes a whole-person, systems approach. Collaborations to progress priorities will accelerate the translation of research into real-world benefits.
To assess the preliminary effectiveness and cost-effectiveness of a culturally tailored, music-based broadcast intervention delivered through schools and community radio to improve referral adherence among schoolchildren to inform the need for a definitive trial.
Pilot randomised interventional study.
18 schools across Unguja and Pemba islands, Zanzibar.
Schoolchildren (6–18 years old) who failed vision screening and were referred for care recruited from January to February 2024. The registered sample size reflects the full cohort, including children and adults. This manuscript reports on the child cohort only, as per the predefined analysis plan.
Group 1 received 3 months of school-based broadcasts of culturally tailored 3–6 min songs (played three times daily on 2 days per week), followed by 3 months of community radio broadcasts of additional songs (3–6 min, aired three times daily); Group 2 received the community broadcasts during the same period as Group 1.
The primary outcome was change in referral adherence assessed at two time points: 3 months after school broadcast and 3 months after community broadcast, expressed in difference-in-difference estimates and effect sizes. Secondary outcomes included reporting of adverse events and contamination, and cost-effectiveness calculated as cost per child reached and cost per referred child accessed care in study groups and combined intervention.
374 children were referred to eye care services, including 246 in Group 1 and 128 in Group 2. Referral adherence was 69.8% in Group 1 and 42.9% in Group 2 (p=0.0006). The school broadcast phase yielded an effect size of 0.26 and a cost of US$4.65 per referred child accessing services. The community broadcast produced an effect size of 0.21, with a cost of US$0.29 per person reached. The combined intervention reached individuals at a cost of US$0.37 per person. No adverse event and contamination was reported.
A combined school and community broadcast intervention improved referral adherence in this pilot trial, with evidence of cost-effectiveness. These findings support the conduct of a fully powered definitive trial.
Glaucoma is the second leading cause of moderate to severe visual impairment worldwide, primarily affecting peripheral vision and increasing the risk of falls due to impaired balance and mobility. While traditional physical training (PT) is used for fall prevention, its effectiveness may be limited by low patient engagement. Action video games (AVGs) may offer a more engaging alternative for improving balance and mobility in individuals with glaucoma.
This prospective, two-arm, single-blind, active-control trial will involve 56 patients with glaucoma with moderate to severe peripheral field loss and intact cognitive function, who have not previously undergone balance training. Participants will be randomly assigned in a 1:1 ratio to either a physically interactive action video-game training (AVG) group or a conventional PT group. The AVG group will use a Nintendo Switch gaming station for 20 sessions of 45 min each, conducted two to three sessions per week over 8 weeks. These sessions will involve standing game exercises using game controllers or body sensors, focusing on muscle stretching and strengthening, balance improvement and fitness. The PT group will engage in traditional PT for the same duration and frequency. The primary outcome is the change in mobility function after 20 sessions, measured by the narrow path walking test. Secondary outcomes include balance function (modified Clinical Test of Sensory Interaction and Balance, motor control test, landing balance test, five-time sit-to-stand test and time up and go test), visual cognition (reaction time test and useful field of view test) and patient-reported outcomes (validated questionnaires). Exploratory outcomes include fall frequency, fear of falling, visual function and serum brain-derived neurotrophic factor levels (one of the biomarkers related to exercise). Assessments will occur at seven time points: baseline (T1), after 10 sessions (T2), after 20 sessions (T3), 1-month post-training (T4) and 3, 6 and 9 months after all training sessions (T5–T7).
The human ethics approval was obtained from the respective ethics board of the Hong Kong Polytechnic University (ID: HSEARS20210722001). The study protocol will conform to the principles of the Declaration of Helsinki. Results will be disseminated through peer-reviewed journals and conferences.
Persistent epithelial defect (PED) management can be challenging. First line of treatment includes lubrication, bandage contact lenses and punctal plugs. The second line of treatment includes autologous serum (AS). Topical insulin has been shown to be safe for topical use and improve corneal epithelial healing. Therefore, a controlled clinical trial (control group with current standard treatment, ie, AS) multicentre, randomised and with a blind third observer will be conducted to evaluate the efficacy and safety of the use of insulin eye-drops in the treatment of PED.
A preselection of patients with epithelial defect after 1 week of treatment will be made and blood tests will be obtained in order to dispense AS if necessary. After 2 weeks of standard treatment, if the PED persists and the patient meets criteria, patients will be enrolled after signing an informed consent form. Patients will be randomly allocated to receive either insulin (1 UI/mL, 4 times a day) or AS (20%, 5–6 times a day) eye-drops for 3 months. 234 patients will be included, 117 in each treatment group. The main variable (PED size) will be obtained from slit-lamp photographs, an objective and easily quantifiable variable which will be evaluated by a blinded investigator (third observer). Patients will be examined every 3–5 days until week 4 of study treatment and once a week until 6 weeks, to continue with a visit every 2 weeks until reaching 3 months of follow-up. Primary endpoints are: complete epithelialisation, epithelialisation rate (initial defect area/days until epithelialisation) and time until complete closure.
Ethical approval has been obtained from Hospital Clinico San Carlos in Madrid and Agencia Española del Medicamento y Productos Sanitarios (AEMPS). The findings will be disseminated in peer-reviewed publications and presentations at meetings.
EudraCT 2022-003589-19.
To compare the presenting demographic and clinical characteristics of rhegmatogenous retinal detachment (RRD) with other RD types, investigate risk factors of blinding RD and the outcome of surgical intervention.
Prospective, cross-sectional and multicentre.
Four ophthalmic centres in three geographic locations of Nigeria.
264 eyes from 237 patients diagnosed with RRD, tractional retinal detachment (TRD) and exudative retinal detachment (ERD) seen between April 2019 and March 2020.
264 eyes of 237 patients were diagnosed out of 35 641 patients screened. RRD was the most common RD (n=167 (70.5%), TRD 61 (25.7%) and ERD 9 (3.8%) patients). The hospital-based prevalence of all RD is 6.6 per 1000 patients (0.66%), and for RRD alone, 4.7 per 1000 patients (0.47%). The most common symptom was a sudden decline in vision, 100 patients (42.2%); floaters and flashes were uncommon, 5 (2.1%). RRD presented earliest, with a median symptom duration of 2 months, and TRD and ERD at 7.5 months each.
The 46–65-year age group had the highest representation, RRD (n=70, 41.9%), TRD (n=41, 67.3%), ERD (n=4, 44.4%). The mean age was highest in TRD (52.3±12.7 years) and lowest in RRD (44.0±17.5 years) and ERD (45.2±20.4 years). Males dominated (RRD 70.1%, TRD 62.3%, and ERD 66.7%). Ocular trauma was highest in RRD 29.3%, TRD 7.5% and ERD 10%; fellow eye RD was highest in TRD 47.5%, ERD 20%, RRD 8% and myopia was highest in RRD 27.6%.
Two-thirds of eyes were blind (Snellen best-corrected visual acuity
Shorter symptom duration is associated with better preoperative and postoperative vision. In contrast, longer durations are connected to poorer outcomes. Eyes with symptoms lasting less than a week had a 17% rate of postoperative blindness, compared with 30% in cases lasting 1–3 months, and 51% in cases exceeding 6 months.
Delays in diagnosing and treating RD result in high rates of preoperative blindness, which can be reversed with surgery even after several weeks of symptoms. Understanding the associations between RD and the risk of blinding RD in developing countries will benefit early diagnosis, treatment and improve treatment outcomes.
Diabetic retinopathy (DR) is a common microvascular complication of diabetes that has the potential to progress to vision-threatening DR (VTDR) even in the absence of symptoms. Plasma proteins in response to physiological and pathological conditions in the body may be intricately connected to the initiation of VTDR.
To determine the causality between 4489 plasma proteins and the risk of VTDR to explore potential therapeutic targets for VTDR.
A Mendelian randomisation (MR) study.
A two-sample MR study was performed to investigate the causality between plasma proteins and VTDR.
Genetic information on plasma proteins and VTDR in European populations from IEU OpenGWAS.
Mediation analysis was performed to evaluate the indirect impacts of plasma proteins on VTDR via related risk variables. Furthermore, the druggability and potential role of the target proteins in VTDR were explored.
According to the MR study, 92 proteins out of 4489 plasma proteins had causal relationships with VTDR. Five potential proteins (MMP8, BST1, ARL1, MRPL33 and SDF2L1) were causally related to both VTDR and risk factors. Mediation analysis revealed that the protein-mediating effects on VTDR outcomes were achieved through risk factors (body mass index; glycated haemoglobin). Seven drugs that interacted with MMP8 were potential target drugs for VTDR.
Our investigation elucidated the causal connections between plasma proteins, risk factors and VTDR, identified MMP8 protein as a potential drug target and highlighted seven candidate drugs. These results provide a translational framework for developing novel therapies for VTDR.
To investigate whether quantitative retinal markers, derived from multimodal retinal imaging, are associated with increased risk of mortality among individuals with proliferative diabetic retinopathy (PDR), the most severe form of diabetic retinopathy.
Longitudinal retrospective cohort analysis.
This study was nested within the AlzEye cohort, which links longitudinal multimodal retinal imaging data routinely collected from a large tertiary ophthalmic institution in London, UK, with nationally held hospital admissions data across England.
A total of 675 individuals (1129 eyes) with PDR were included from the AlzEye cohort. Participants were aged ≥40 years (mean age 57.3 years, SD 10.3), and 410 (60.7%) were male.
The primary outcome was all-cause mortality. Quantitative retinal markers were derived from fundus photographs and optical coherence tomography using AutoMorph and Topcon Advanced Boundary Segmentation, respectively. We used unadjusted and adjusted Cox-proportional hazards models to estimate hazard ratios (HR) for the association between retinal features and time to death.
After adjusting for sociodemographic factors, each 1-SD decrease in arterial fractal dimension (HR: 1.54, 95% CI: 1.18 to 2.04), arterial vessel density (HR: 1.59, 95% CI: 1.15 to 2.17), arterial average width (HR: 1.35, 95% CI: 1.02 to 1.79), central retinal arteriolar equivalent (HR: 1.39, 95% CI: 1.05 to 1.82) and ganglion cell-inner plexiform layer (GC-IPL) thickness (HR: 1.61, 95% CI: 1.03 to 2.50) was associated with increased mortality risk. When also adjusting for hypertension, arterial fractal dimension (HR: 1.45, 95% CI: 1.08 to 1.92), arterial vessel density (HR: 1.47, 95% CI: 1.05 to 2.08) and GC-IPL thickness (HR: 1.56, 95% CI: 1.03 to 2.38) remained significantly associated with mortality.
Several quantitative retinal markers, relating to both microvascular morphology and retinal neural thickness, are associated with increased mortality among individuals with PDR. The role of retinal imaging in identifying those individuals with PDR most at risk of imminent life-threatening sequelae warrants further investigation.
The prevalence of myopia has been rising, whereas prevention efforts have shown limited success. Educational short videos have become crucial sources for health information; however, their quality regarding myopia prevention is uncertain. This study aimed to evaluate the quality and content of short videos on myopia prevention disseminated via major Chinese short video platforms and compare content differences between healthcare professionals and non-professional creators.
A cross-sectional content analysis.
Top-ranked videos from three dominant Chinese platforms (TikTok, Kwai and BiliBili) in 6–10 August 2024.
284 eligible videos screened from 300 initial results using predefined exclusion criteria, including 97 videos from TikTok, 94 from BiliBili and 93 from Kwai.
Videos were assessed using the Global Quality Scale and a modified DISCERN tool. Content completeness was evaluated across six predefined domains. Videos were categorised by source (healthcare professionals vs non-healthcare professionals), and intergroup differences were statistically analysed.
Of the 284 videos, 48.9% were uploaded by healthcare professionals and 51.1% by non-healthcare professionals. Overall video quality was suboptimal. Videos by ophthalmologists had significantly higher quality scores than those by other creators. Healthcare professionals focused more on definitions, symptoms and risk factors of myopia, whereas non-healthcare professionals emphasised prevention and treatment outcomes. Ophthalmologists more frequently recommended corrective lenses (including both standard spectacles and specially designed lenses for myopia control) and low-dose atropine, whereas non-healthcare professionals favoured vision training.
Significant quality gaps exist in myopia prevention videos. Healthcare professionals, particularly ophthalmologists, produce higher-quality and more comprehensive content. Strategic engagement by healthcare professionals in digital health communication and platform-level quality control is needed to improve public health literacy on myopia.
Prescribing patterns for hyperopia in children vary widely among eye care providers worldwide. This scoping review aims to identify and map the current literature on optical correction and catalogue outcomes reported, particularly in the domains of vision, vision-related functional outcomes and quality of life (QoL) in school-aged children with hyperopia.
This protocol was developed in accordance with the Joanna Briggs Institute’s Manual for Evidence Synthesis. We will include studies involving school-aged children with hyperopia without restrictions on sex, gender, race, ethnicity, type of optical correction, length of intervention, publication date or country of origin. We will include studies with internal or external comparison groups. We will exclude studies associated with myopia control treatments, ocular and visual pathway pathologies affecting vision or visual function. We will search Cochrane CENTRAL, Embase.com and PubMed. Examples of data to be extracted include population demographics, visual acuity, study-specific definitions for refractive error, treatment regimens for optical correction, vision and vision-related functional outcomes and QoL (general or vision-related) as quantified by validated instruments.
Informed consent and Institutional Review Board approval will not be required, as this scoping review will only use published data. The results from the scoping review will be disseminated by publication in a peer-reviewed scientific journal and at professional conferences.
Eye disease and vision impairment are known to be associated with reduced mental well-being, but less is known about the well-being of people with near-normal levels of vision. Here, we examined the association between self-reported eyesight and mental well-being, controlling for eye disease, mental ill-health and demographic factors, for adults with a wide range of age and vision.
Population-based cross-sectional study.
7705 adults (56% women; median age 49 years, range 16–104 years) who participated in the Health Survey for England 2013, self-reported their eyesight status and completed the Warwick-Edinburgh Mental Well-Being Scale.
Mental well-being, controlling for self-reported mental ill health, self-reported eye disease, age, sex, socioeconomic group and ethnic origin.
Poorer self-reported eyesight was strongly associated with lower mental well-being (univariate linear model, F(4,7700)=94.7, p2=0.047). Relative to reporting ‘poor’ vision, each subsequent level of vision predicted better well-being, with the exception of ‘fair’ vision, which was not significantly different from ‘poor’ reported vision. This association remained significant after controlling for self-reported mental ill health, self-reported eye disease, age, sex, socioeconomic group and ethnic origin.
Self-reported eyesight is strongly associated with mental well-being, irrespective of whether people have vision impairment or a diagnosed eye disease. This relationship exists in people with and without mental ill-health. Mental well-being should be considered in people with reduced eyesight, regardless of whether they have a diagnosed eye disease or mental ill-health. Interventions which improve vision may have a positive impact on mental well-being.