quality of life after panretinal photocoagulation. 1 We agree with the authors of the letter that rash analysis is a useful tool for the evaluation of quality of life questionnaires. According to the authors, the results of such a study may gain in power when analyzed as proposed in their letter. In our study, we chose to use the classical psychometric evaluation method for the analysis of our results because this method was used by the constructors of the questionnaire. 2 In addition, this method had been already used in other studies validating vision-related quality of life in diabetic retinopathy with the 25-item Visual Function Questionnaire. Disease progression correlated with a decline in the scores of 25-item Visual Function Questionnaire, and the effect of focal or grid laser for diabetic macular edema has also been evaluated with the 51-item Visual Function Questionnaire. 3,4 All these studies used similar methods, as ours, for the evaluation of responses of patients to the questionnaire.Rash analysis, as stated by the authors of the letter, is a new tool for the evaluation of such data, and there are already some studies in the literature that use this tool. In our opinion, statistical analysis and interpretation of data from questionnaires is a significant tool for clinical studies, and evolution in such methods is important. Rash analysis could be implemented in the future for the evaluation of the effect of panretinal photocoagulation in the quality of life of patients with diabetes.

To report an unusual case of a 71-year-old livestock farmer with systemic brucellosis and ocular involvement. Examination showed vitreous haze with bilateral serous choroidal detachment. He was treated with topical antibiotics and corticosteroids, Tab rifampicin 600 mg and doxycycline 100 mg for 6 weeks with visual recovery and complete resolution of serous choroidal detachment in 2 weeks. This is the first case of bilateral serous choroidal detachment in a case of systemic brucellosis. Immune-mediated complex and direct microbial invasion of uveal tissue leading to serous choroidal detachment is the proposed pathogenesis that responds well to topical corticosteroids.

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