Effect of wavefront aberration or corneal topography guided individualized LASIK on the visual quality
Journal Title: Guoji Yanke Zazhi - Year 2018, Vol 18, Issue 5
Abstract
AIM:To comparatively analyze the effect of wavefront aberration or corneal topography guided laser-assisted <i>in situ</i> keratomileusis(LASIK)on the visual quality in patients with myopia after surgery. <p>METHODS: During the period of January 2016 to January 2017, 100 patients(a total of 200 affected eyes)with myopia in our hospital were selected as the subjects, and they were randomly divided into Group A and Group B with 50 cases in each group. Before surgery, the eyes were examined and LASIK was performed. During surgery, the corneal stroma of eyes in Group A was cut individually according to the results of wavefront aberration examination while the individual cutting in Group B was performed according to the data of corneal topography. The visual acuity and visual quality were compared between the two groups after surgery. <p>RESULTS: There was no significant difference of the visual acuity between the two groups before surgery(<i>P</i>>0.05). The Log MAR uncorrected visual acuity(UCVA), Log MAR BCVA and diopter were significantly improved at 6mo after surgery(<i>P</i><0.05), and the diopter of Group A at 6mo after surgery was lower than that of Group B(<i>P</i><0.05). There was no significant difference of contrast sensitivity(CS)between the two groups before surgery(<i>P</i>>0.05). But CS of different optotypes in two groups at 3mo after surgery were all better than those before surgery(<i>P</i><0.05). There was no significant difference between the two groups in CS under the bright and non-glare condition at 3mo after surgery(<i>P</i>>0.05). However, CS of Group A under bright glare, dark with glare and dark without glare states were significantly better than those of Group B(<i>P</i><0.05). There was no significant difference of detection results of wavefront aberrations between the two groups before surgery(<i>P</i>>0.05). At 3mo after surgery, the total aberrations, total higher-order aberrations, comatic aberrations and spherical aberrations significantly increased in two groups(<i>P</i><0.05), and the increase in Group A was obviously lower than that in Group B(<i>P</i><0.05). <p>CONCLUSION: Both of wavefront aberration and corneal topography guided individualized excimer surgery can significantly improve the visual acuity of patients with myopia, but the former has more advantages in improving the visual quality.
Authors and Affiliations
Guo-Yi Cui
Keywords
Related Articles
- EP ID EP656685
- DOI 10.3980/j.issn.1672-5123.2018.5.32
- Views 110
- Downloads 0
Different lens chopping techniques during the phacoemulsification in age-related cataract patients
AIM: To discuss the curative effect of different chopping techniques on hard nuclear during the phacoemulsification in age-related cataract. <p>METHODS: Totally 200 elderly patients(264 eyes)with age-related cataract wer...
Research progress on the pathogenesis of microvascular neuropathy in diabetic retinopathy
Diabetic retinopathy is one of the common and serious microvascular complications of diabetes. In foreign countries, DR is the leading cause of blindness in the working age group(20-64 years). In China, the incidence of...
Effects of LASIK on ocular surface by femtosecond laser or mechanical microkeratome for creating corneal flap
AIM:To investigate the effects of laser <i>in situ</i> keratomileusis(LASIK)on ocular surface by femtosecond laser or mechanical microkeratome for creating corneal flap, and to study the effect of different corneal flap...
Research progress in physical therapy for dry eye
Dry eye is a common ocular surface disease, which seriously affects the work and quality of life of the patients. In recent years, physical therapies for dry eye have developed rapidly. This paper summarizes the traditio...
Ahmed glaucoma valve implantation treatment of traumatic angle recession glaucoma
AIM: To study the influence of Ahmed glaucoma valve implantation on eyesight, intraocular pressure and corneal endothelial cell density of patients with traumatic angle recession glaucoma. <p>METHODS: Totally 33 cases(35...