Study on the role of peripheral defocus lenses and reduced contrast sensitivi-ty lenses in myopia control efficacy
10.13389/j.cnki.rao.2025.0167
- VernacularTitle:周边离焦型镜片与降低对比敏感度镜片在近视控制中的作用研究
- Author:
Lulu XU
1
;
Jie WANG
Author Information
1. 150000 黑龙江省哈尔滨市,哈尔滨爱尔眼视光医院视光科;150000 黑龙江省哈尔滨市,哈尔滨普瑞眼科医院视光科
- Publication Type:Journal Article
- Keywords:
myopia control;
peripheral defocus lens;
reduced contrast sensitivity lens;
clinical study
- From:
Recent Advances in Ophthalmology
2025;45(12):974-980
- CountryChina
- Language:Chinese
-
Abstract:
Objective To investigate the roles of peripheral defocus lenses(DIMS)and reduced contrast sensitivity(CS)lenses[e.g.,those utilizing optical diffusion technology(DOT)]in myopia control efficacy and their impact on visu-al quality in myopic patients.Methods A prospective controlled study was conducted to select 160 myopic children(160 eyes)aged 7-12 years old who were fitted with lenses at Harbin Purui Eye Hospital from April 2023 to April 2024.They were divided into a DIMS group(n=80)and a DOT group(n=80)according to the type of lens fitted.Spherical equiva-lent(SE),axial length(AL),choroidal thickness(CT)in various regions,and contrast sensitivity(CS)under photopic and scotopic conditions at different spatial frequencies were recorded and compared between the two groups before lens wear,and at 6 and 12 months after lens wear.Results At 6 and 12 months after lens wear,the DOT group showed lower SE,lower CT in all regions,and lower CS under both photopic and scotopic conditions at three different spatial frequen-cies,alongside higher AL,compared to the DIMS group(all P＜0.05).Compared with baseline(before lens wear),the DOT group showed decreased SE and increased AL at both 6 and 12 months(all P＜0.05).In the DIMS group,compared with baseline,the change in SE at 6 months was not statistically significant(P＞0.05),while at 12 months,SE was de-creased and AL was increased(both P＜0.05).Compared to the 6-month time point,both groups showed decreased SE and increased AL at 12 months(all P＜0.05).Compared with baseline,CT in all regions increased in both groups at 6 and 12 months(all P＜0.05).Compared to the 6-month time point,CT in all regions increased in both groups at 12 months(all P＜0.05).Compared with baseline,CS within the same spatial frequencies under both photopic and scotopic conditions in the DOT group,and CS under scotopic conditions within the same spatial frequencies in the DIMS group,were decreased at both 6 and 12 months(all P＜0.05).Compared to the 6-month time point,CS within the same spatial frequencies under both photopic and scotopic conditions in the DOT group,and CS under scotopic conditions within the same spatial frequen-cies in the DIMS group,were decreased at 12 months(all P＜0.05).Conclusion Wearing DIMS lenses provides superi-or control over myopia progression(SE change,AL growth,CT increase)compared to DOT lenses,with less impairment to visual quality.This finding can serve as a reference for clinicians selecting myopia control interventions.
