{"title":"Is myopia associated with a reduced or increased risk of diabetic retinopathy? A systematic review and meta-analysis","authors":"Kai-Yang Chen , Hoi-Chun Chan , Chi-Ming Chan","doi":"10.1016/j.dsx.2025.103253","DOIUrl":null,"url":null,"abstract":"<div><h3>Introduction</h3><div>Diabetic retinopathy remains a leading cause of vision loss worldwide. Recent studies suggest that myopia, particularly due to axial elongation, may offer a protective effect against retinal microvascular damage.</div></div><div><h3>Objectives</h3><div>This systematic review and meta-analysis aimed to evaluate the association between myopia and diabetic retinopathy, quantify the strength of this relationship, and explore potential protective mechanisms.</div></div><div><h3>Methods</h3><div>A systematic search of PubMed, Embase, Cochrane, and other databases was conducted in accordance with PRISMA guidelines. Eight observational studies including 5564 individuals with type 1 or type 2 diabetes were analyzed. Pooled odds ratios (OR) were computed using a random-effects model. Subgroup and heterogeneity analyses were also performed.</div></div><div><h3>Results</h3><div>Moderate myopia was significantly associated with an 80 % lower risk of diabetic retinopathy (OR = 0.20, 95 % CI: 0.11–0.37, p < 0.00001). High myopia showed a 31.5 % reduced risk compared to moderate myopia (OR = 0.685, 95 % CI: 0.607–0.773). Hyperopia was associated with a nearly fivefold higher risk of vision-threatening diabetic retinopathy (OR = 4.874, 95 % CI: 4.677–5.078). There was no significant heterogeneity (I<sup>2</sup> = 0 %) and minimal evidence of publication bias.</div></div><div><h3>Conclusion</h3><div>Moderate and high myopia appear to be protective against diabetic retinopathy, likely due to axial length-related anatomical changes. These findings could inform future diabetic eye disease risk models and personalized screening strategies.</div></div>","PeriodicalId":48252,"journal":{"name":"Diabetes & Metabolic Syndrome-Clinical Research & Reviews","volume":"19 6","pages":"Article 103253"},"PeriodicalIF":3.4000,"publicationDate":"2025-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Diabetes & Metabolic Syndrome-Clinical Research & Reviews","FirstCategoryId":"1085","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/S1871402125000700","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q1","JCRName":"ENDOCRINOLOGY & METABOLISM","Score":null,"Total":0}
引用次数: 0
Abstract
Introduction
Diabetic retinopathy remains a leading cause of vision loss worldwide. Recent studies suggest that myopia, particularly due to axial elongation, may offer a protective effect against retinal microvascular damage.
Objectives
This systematic review and meta-analysis aimed to evaluate the association between myopia and diabetic retinopathy, quantify the strength of this relationship, and explore potential protective mechanisms.
Methods
A systematic search of PubMed, Embase, Cochrane, and other databases was conducted in accordance with PRISMA guidelines. Eight observational studies including 5564 individuals with type 1 or type 2 diabetes were analyzed. Pooled odds ratios (OR) were computed using a random-effects model. Subgroup and heterogeneity analyses were also performed.
Results
Moderate myopia was significantly associated with an 80 % lower risk of diabetic retinopathy (OR = 0.20, 95 % CI: 0.11–0.37, p < 0.00001). High myopia showed a 31.5 % reduced risk compared to moderate myopia (OR = 0.685, 95 % CI: 0.607–0.773). Hyperopia was associated with a nearly fivefold higher risk of vision-threatening diabetic retinopathy (OR = 4.874, 95 % CI: 4.677–5.078). There was no significant heterogeneity (I2 = 0 %) and minimal evidence of publication bias.
Conclusion
Moderate and high myopia appear to be protective against diabetic retinopathy, likely due to axial length-related anatomical changes. These findings could inform future diabetic eye disease risk models and personalized screening strategies.
期刊介绍:
Diabetes and Metabolic Syndrome: Clinical Research and Reviews is the official journal of DiabetesIndia. It aims to provide a global platform for healthcare professionals, diabetes educators, and other stakeholders to submit their research on diabetes care.
Types of Publications:
Diabetes and Metabolic Syndrome: Clinical Research and Reviews publishes peer-reviewed original articles, reviews, short communications, case reports, letters to the Editor, and expert comments. Reviews and mini-reviews are particularly welcomed for areas within endocrinology undergoing rapid changes.