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Evaluation of the effects of isotretinoin for treatment of acne on corneal sensitivity
Authors
N. Fouladgar
A.R. Hanifnia
+3 more
M. Khabazkhoob
A. Mirzajani
A. Yekta
Publication date
1 January 2018
Publisher
Abstract
Purpose: To determine the effect of isotretinoin on corneal sensitivity in acne patients. Methods: Fifty patients (13 men and 37 women) with a mean age of 23.24 ± 3.4 years were selected among patients receiving isotretinoin (1.0 mg/kg) for acne according to inclusion criteria. The Cochet-Bonnet esthesiometer was used to measure corneal sensitivity (in mm filament length) two times (the measurements were done immediately before starting the medication, then 3 months after that), including 3 measurements each time, between 11 a.m. and 1 p.m. by an experienced operator. The average of the 3 measurements in each time was recorded as the final value. One-way analysis of variance and Chi square were used for quantitative and qualitative comparison of corneal sensitivity before and after isotretinoin use, respectively. Results: The mean corneal sensitivity was 5.54 ± 0.05 before medication consumption which decreased to 5.41 ± 0.05 after isotretinoin treatment for 3 months (P < 0.005). After controlling the effect of age and sex, the decrease of corneal sensitivity was markedly significant (P = 0.003) as decreased corneal sensitivity was more pronounced at higher ages and in female gender. In non-parametric evaluation, corneal sensitivity was categorized as substantial (5.5�6 mm), intermediate (4.5�5.5 mm), and low (3.5�4.5). About 72 of the participants had substantial corneal sensitivity before drug consumption, which decreased to 60 after 3 months of treatment. Conclusions: According to the results of this study, corneal sensitivity decreases after three months of treatment with isotretinoin. This decrease is more pronounced at higher ages and in women. © 2018 Iranian Society of Ophthalmolog
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eprints Iran University of Medical Sciences
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Last time updated on 10/10/2019