Dyschromatopsia and contrast sensitivity changes in COVID-19 patients

Autor: Aditi Sharma, Aditya Singh, Yashik Bansal, Aditi Mohan, Ramya Gnanaraj, Pranita Khulbe, Kavita Pangtey, Kaushiki Tripathi, Mohammad Ali Khan, Akshita Sharma, Manish Jain
Jazyk: angličtina
Rok vydání: 2023
Předmět:
Zdroj: Indian Journal of Ophthalmology, Vol 72, Iss 5, Pp 664-671 (2023)
Druh dokumentu: article
ISSN: 0301-4738
1998-3689
DOI: 10.4103/IJO.IJO_1437_23
Popis: Purpose: To evaluate the alterations in the psycho-physical tests, contrast sensitivity (CS) and hue discrimination (total estimation score, TES) in COVID-19 patients. Methods: A prospective case-control study was undertaken in 2021-22 to look at CS and TES among COVID-19 patients and RT-PCR negative normal subjects by a mobile app “smart optometry” and X-Rite’s free online version of Farnsworth-Munsell 100 hue test. Strict visual acuity (minimum of 6/9 equivalent on Snellen) and other clinical parameters were used as exclusion criteria to filter potentially confounding pre-receptoral co-morbid conditions. The effect of mismatch in recruiting age and sex matched controls during the pandemic were analyzed by multivariate linear regression. Result: One-way ANOVA ruled out any influence of gender on CS and TES; however, there was significant difference in the TES on Mann Whitney U test (TES- 2.95 +/- 3.8 for cases; 0.30 +/- 1.1 for controls; p
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