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Current Situation and Progress of Orthokeratology's Influence on the Cornea |
Hongjun Liao1 , Fen Xiong2 , Hongfei Liao2 |
1 Nanchang University School of Ophthalmology & Optometry, Nanchang 330006, China 2 Ophthalmologic Hospital of Nanchang University, Nanchang 330006, China |
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Abstract At present, the effectiveness of orthokeratology in controlling myopia has been demonstrated.However, because the lensis close to the cornea, it maybe have an effect on the cornea. First of all, it will exert a certain pressure on the middle region of the cornea.This pressure will affect the flow of tears under the lens, thereby affecting the supply of oxygen and nutrients to the cornea. The relative hypoxia of the cornea leads to a decline in immunity. In addition, lens abrasion scratches the cornea. Partial cleaning of the lens leads to microbial aggregation, causing corneal lesions or even corneal infection. Furthermore, the corneal shape will deform and the thickness will change after wearing, which will affect the force between the layers of the cornea. Finally, long-term compression will also lead to changes in the corneal nerves and reduced sensitivity.The influence of orthokeratology on the cornea has always been a hot topic. This review summarizes the influence of orthokeratology on the cornea.
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Received: 07 March 2019
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Corresponding Authors:
Hongfei Liao, Ophthalmologic Hospital of Nanchang University, Nanchang 330006, China (Email: drliaohongfei@126.com)
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