Safety of scleral contact lenses in correcting ametropia
10.13389/j.cnki.rao.2024.0137
- VernacularTitle:巩膜镜矫正屈光不正的安全性
- Author:
Yu WEN
1
;
Dongwei LIU
;
Liming TAO
Author Information
1. 230031 安徽省合肥市,安徽医科大学第二临床医学院;230601 安徽省合肥市,安徽医科大学第二附属医院眼科
- Keywords:
rigid scleral contact lens;
rigid corneal contact lens;
ametropia;
safety;
ocular surface indicators
- From:
Recent Advances in Ophthalmology
2024;44(9):719-723
- CountryChina
- Language:Chinese
-
Abstract:
Objective To investigate the safety of rigid scleral contact lenses in correcting ametropia.Methods A total of 96 patients(192 eyes)with myopia between-20.00 and 0 D and astigmatism between 0 and 3.5 D were included in this perspective study.They were divided into an experimental group(wearing rigid scleral contact lenses)and a control group[wearing rigid corneal contact lenses(RGP)],with 48 patients in each group.Eye indicators including best correc-ted visual acuity(BCVA),corneal endothelial cell density,hexagonal cell ratio,tear film break-up time(BUT),intraocu-lar pressure(IOP),corneal fluorescence staining score,conjunctival congestion score,and ciliary congestion score were measured and compared between the two groups before wearing,on the day of wearing,and 1 week,1 month,and 3 months after wearing lenses,and eye changes were observed.Results The BCVA of patients in the two groups was grea-ter than or equal to 1.00 before wearing lenses and within 3 months after wearing lenses.Compared with before wearing lenses,the corneal endothelial cell density in the experimental group slightly decreased,and the hexagonal cell ratio slightly increased at 3 months after wearing lenses,but the differences were not statistically significant(both P＞0.05).Before wearing lenses and at 3 months after wearing lenses,the corneal endothelial cell density and the hexagonal cell ratio in the experimental group were slightly higher than those in the control group,but the differences were not statistically significant(both P＞0.05).There were no significant differences in BUT and IOP between the experimental group and the control group before wearing,on the day of wearing,and 1 week,1 month,and 3 months after wearing lenses(all P＞0.05).There were no significant differences in corneal fluorescence staining score and conjunctival and ciliary congestion ratings between the experimental group and the control group before wearing lenses and at 3 months after wearing lenses(all P＞0.05).At 3 months after wearing lenses,no conjunctival or corneal edema was observed in the experimental group.Con-clusion Rigid scleral contact lenses and RGP are safe and effective in correcting ametropia;thus,they can be applied widely.
