Effect of two kinds of orthokeratology lens for compound myopic astigmatism
Journal Title: Eye Science (Yanke Xuebao) - Year 2021, Vol 36, Issue 7
Abstract
[Objective:] To observe the effectiveness and safety of orthokeratology lens and toric design othokeratology treatment for compound myopic astigmatism. [Methods:] From March 2016 to March 2018, 94 teenagers (178 eyes) were selected as the subjects of study. They were divided into two groups according to the type of orthokeratology: the orthokeratology lens group (48 cases, 90 eyes) and the toric design othokeratology group (46 cases, 88 eyes). Visual acuity, corneal astigmatism, axial length, spherical lens refraction, intraocular pressure, tear film rupture time and corneal staining rate were recorded before, after 1 year and after 1 week. [Results:] After 1 year of wearing the lens, astigmatism, spherical lens degree, intraocular pressure and tear film rupture time were all decreased in the 2 groups compared with each other, but only astigmatism degree was statistically significant between the 2 groups compared with each other (P<0.01). After wearing the glasses for 1 year, the visual acuity of the two groups was significantly improved compared with that before wearing the glasses, and the myopia degree was increased after stopping wearing the glasses compared with that before wearing the glasses, but the difference between the two groups was not statistically significant (P>0.05). There was no statistical significance in the incidence of corneal staining between the two types of shaping lenses (P>0.05). [Conclusion:] Both of the two shaping lenses can reduce the degree of myopic patients with complex astigmatism and effectively improve the visual acuity of patients, but they can not completely prevent the progress of myopia. Although toroidal shaping mirror has advantages in correcting astigmatism, its overall effectiveness and safety are not.
Authors and Affiliations
Guogang LUAN, Jingjing HUANG, Tao YAN
Keywords
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- EP ID EP763533
- DOI 10.3978/j.issn.1000-4432.2021.07.03
- Views 21
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