Evaluation of ocular surface and visual quality of cataract by dual channel visual analysis system / 国际眼科杂志(Guoji Yanke Zazhi)

ABSTRACT

@#AIM:To evaluate the visual quality of different types of cataracts by double-pass optical quality analysis system(OQAS).<p>METHODS: A cross-sectional study was conducted. Totally 30 age-related cataract patients(30 eyes), which were aged group, with an average age of 71.69±3.79 years, thirty patients(30 eyes)with complicated cataract were in the complicated group with an average age of 61.00±4.56 years and 30 normal patients(30 eyes)were in the normal group, with an average age of 65.34±4.06 years old, both of which with naked eye vision(UCVA)≤0.5, and from June 2019 to June 2020 in the eye Center of Renmin Hospital of Wuhan University were collected. The ocular surface and optical quality examination on the patient's visual quality, including anterior chamber depth(ACD), ocular axis(AL), IOP, corneal curvature(K), objective scattering index(OSI), MTF cut off frequency(MTF cut off), Sterl ratio(SR), contrast sensitivity VA100%, VA20%, VA9% and other visual quality were operated by the same doctor. <p>RESULTS: Compared with glaucomatous cataract, the MTF cut off of uveitis cataract was lower(<i>P</i>=0.025), but higher than that of fundus cataract(<i>P</i>=0.013), and diabetic cataract(<i>P</i>=0.001). The MTF cutoff value of glaucomatous cataract was higher than that of fundus cataract(<i>P</i>=0.013), and diabetic cataract(<i>P</i>=0.007); the MTF cutoff of fundus cataract was higher than that of diabetic cataract and there was significant difference(<i>P</i>=0.010).<p>CONCLUSION: There are some differences in the ocular surface and visual quality parameters of each subtype of complicated cataract, especially MTF cut off, so we should paid attention to the cataract types before surgery.