دورية أكاديمية
Relationship between contrast sensitivity and corneal shape following overnight orthokeratology
| العنوان: | Relationship between contrast sensitivity and corneal shape following overnight orthokeratology |
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| المؤلفون: | Li-Li Liu, Li-Ping Gong, Yue-Yuan Xu, Xuan Zhu, Kaddie Kwok Chen, Wei-Feng Liu |
| المصدر: | International Journal of Ophthalmology, Vol 12, Iss 2, Pp 275-279 (2019) |
| بيانات النشر: | Press of International Journal of Ophthalmology (IJO PRESS), 2019. |
| سنة النشر: | 2019 |
| المجموعة: | LCC:Ophthalmology |
| مصطلحات موضوعية: | orthokeratology, contrast sensitivity, pupil size area, shaped cornea, myopia, Ophthalmology, RE1-994 |
| الوصف: | AIM: To evaluate the relationship between contrast sensitivity (CS) and corneal shape following overnight orthokeratology (OK). METHODS: We conducted a retrospective clinical study of 80 lens-wearing myopia patients, all of whom had undergone OK and had been evaluated by Orbscan II topography. We measured the surface irregularity index (SIRI) of corneal topography at 3 and 5 mm, the size of the flattened central corneal curvature of OK lens (zone A), the size of the cornea altered by OK lens (zone B), the size of the pupillary area at the corneal level (zone C), the area of crossover between zones A and C (zone AC), the area of crossover between zones B and C (BC), the ratio of BC to B (BC/B), and the ratio of AC to C (AC/C). CS was evaluated using the CSV-1000 with spatial frequencies of 3, 6, 12, and 18 cycles/degree (CPD). RESULTS: Multiple correlation analyses indicated significant negative correlations between CS, zone C, BC/B, and 3-mm SIRI (all P |
| نوع الوثيقة: | article |
| وصف الملف: | electronic resource |
| اللغة: | English |
| تدمد: | 2222-3959 2227-4898 |
| Relation: | http://www.ijo.cn/en_publish/2019/2/20190214.pdf; https://doaj.org/toc/2222-3959; https://doaj.org/toc/2227-4898 |
| DOI: | 10.18240/ijo.2019.02.14 |
| URL الوصول: | https://doaj.org/article/c77a27f39d2a4ba088bf85e86a57b9e1 |
| رقم الأكسشن: | edsdoj.77a27f39d2a4ba088bf85e86a57b9e1 |
| قاعدة البيانات: | Directory of Open Access Journals |
Full Text Finder | تدمد: | 22223959 22274898 |
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| DOI: | 10.18240/ijo.2019.02.14 |