Predictive Factors for Resolution of Dematiaceous Fungal Keratitis.

To ascertain the clinicomicrobiological correlation and evaluate the prognostic factors associated with medical resolution in cases of Curvularia, Alternaria, and Scedosporium keratitis. A retrospective review of clinical and microbiological records of culture-proven cases of Curvularia, Alternaria, and Scedosporium keratitis from 2017 to 2019 was performed. Multivariate logistic regression analyses were performed to assess the predictive factors for medical resolution. There were a total of 79 eyes of 79 patients. Among these, there were 56 (70.8%), 15 (18.9%), and 8 (10.1%) patients with Curvularia, Scedosporium, and Alternaria keratitis, respectively. Clinical resolution with medical treatment was achieved in 46 of 56 (82.1%) patients with Curvularia keratitis, 8 of 15 (53.3%) patients with Scedosporium, and 7 of 8 (87.5%) patients with Alternaria keratitis. In comparison between Curvularia and Scedosporium, macroscopic pigmentation [18/56 (32.1%)] of anterior stromal plaque-like infiltrate [20/56 (35.7%)] was clinically more in cases with Curvularia, whereas larger diameter of the infiltrate, P = 0.002, posterior stromal infiltrate (40%), P = 0.03, and hypopyon, P = 0.009, were more common with Scedosporium. Multivariate logistic regression analysis, by backward elimination, showed that maximum dimension of the infiltrate (P = 0.01; odds ratio = 0.52, 95% confidence interval, 0.31-0.86) and presence of a hypopyon (P = 0.02; odds ratio = 0.12, 95% confidence interval, 0.02-0.71) were significant factors that were not favoring medical resolution. Larger size of the infiltrate, posterior stromal involvement, and presence of a hypopyon are poor prognostic indicators among all 3 species. Variation in species is not a predictor of clinical resolution.

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The authors have no conflicts of interest to disclose.