Effects of orthokeratology lens on visual quality and bacterial infection in adolescents
10.16835/j.cnki.1000-9817.2022.12.021
- VernacularTitle:长期配戴角膜塑形镜对青少年视觉质量及细菌感染发生的影响
- Author:
JIN Huixia, CHEN Xia
1
Author Information
1. Department of Ophthalmology, Henan No.3 Provincial People s Hospital, Zhengzhou (450053) , China
- Publication Type:期刊文章
- Keywords:
Orthokeratologic procedures;
Eyeglasses;
Bateria;
Infection;
Adolescent
- From:
Chinese Journal of School Health
2022;43(12):1847-1850
- CountryChina
- Language:Chinese
-
Abstract:
Objective:To investigate the effects of orthokeratology on visual quality and incidence of bacterial infection in adolescents.
Methods:A total of 280 orthokeratology teenage patients were selected. Visual examination, OQAS-Ⅱ optical assessment and ocular flora were assessed before, 6 months and 1 year after orthokeratology wearing. Changes in visual and optical performance and ocular flora infection were compared.
Results:Compared with before wearing orthokeratography lens (0.18±0.04, 33.21± 4.23 , 0.72±0.12, 0.99±0.19, 1.32±0.21), parameters of adolescent patients including strayers ratio (0.21±0.05, 0,24±0.03) and modulation transfer cutoff (37.65±5.29, 39.01±3.94) increased after wearing for 6 months and 1 year, 9% objective visual acuity( 0.61± 0.10, 0.53±0.26), 20% objective visual acuity (0.82±0.21, 0.78±0.15) and 100% objective visual acuity (1.10±0.13, 1.00 ±0.07) decreased, the differences were statistically significant ( F =7.89, 6.59, 6.52, 9.47, 8.49, P <0.05), while the objective scattering index index (0.99±0.21, 1.01±0.07, 1.23±0.31) had no significant difference before and after wearing orthokeratography lens ( F=-1.56, P >0.05). Compared with before wearing, the incidence of bacterial infection significantly increased after wearing ( P <0.05). The infection rate of pseudomonas aeruginosa in patients who wore orthokeratology lens for 1 year rose to 0.36 %, e. coli infection rates as high as 0.71%, staphylococcus aureus infection rates as high as 0.36%.
Conclusion:Long term orthokeratology lens wear can effectively improve the visual quality of adolescents, but also increase the risk of bacterial infection. Timely awareness on good eye hygiene practice should be emphasized to the users.
