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  • Title: Optical quality in central serous chorioretinopathy.
    Author: Lee K, Sohn J, Choi JG, Chung SK.
    Journal: Invest Ophthalmol Vis Sci; 2014 Dec 02; 55(12):8598-603. PubMed ID: 25468888.
    Abstract:
    PURPOSE: To assess optical quality and intraocular scattering using the Optical Quality Analysis System (OQAS) in central serous chorioretinopathy (CSC) and to determine the effects of retinal changes on optical quality. METHODS: This was a prospective, case-control study. Participants were 29 patients with diagnosis of CSC. The control group consisted of the patients' unaffected eyes. Initial logMAR visual acuity, central macular thickness (by spectral domain optical coherence tomography), and optical quality parameters including modulation transfer function (MTF) cutoff frequency, Strehl (2-dimensional) ratio, and OQAS values at 100%, 20%, and 9% contrast levels were investigated. Objective scattering index (OSI) at 4.0-mm pupil size was assessed in both eyes by using the OQAS. After 3 months of treatment, which included observation and focal laser or injections of antivascular endothelial growth factor, every CSC-affected eye was followed. Main outcome measures were differences between clinical parameters of the CSC-affected eye and those of the control eye and changes in those parameters according to the clinical course of CSC over 3 months. RESULTS: In CSC-affected eyes, the MTF cutoff was significantly reduced (P = 0.01), and OSI was significantly increased (P = 0.03). As macular thickness decreased, OSI decreased but did not become normalized compared to the control eye, nor was it statistically significantly correlated with central macular thickness change. CONCLUSIONS: Retinal change affected optical quality and intraocular scatter. Therefore, when the severity of a cataract is assessed using the OQAS, retinal status should be considered when interpreting OQAS values.
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