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    Öğe
    A novel side effect of mitogen-activated protein kinase inhibitor cobimetinib: Acute corneal decompensation
    (Wolters Kluwer Medknow Publications, 2019) Asfuroglu, Mahmut; Asfuroglu, Yonca
    A 38-year-old man with a diagnosis of BRAF-mutated metastatic melanoma was referred to our clinic. He had been under treatment with 60-mg oral cobimetinib daily for 21 days/7 day off in combination with 960 mg vemurafenib twice daily. The patient had symptoms of blurred vision and photophobia in his right eye. A slit-lamp examination revealed bilateral central corneal stromal opacity and epithelial microcystic edema Involvement was more severe in the right eye compared with the left eye. Fourteen days after the first visit, the patient's symptoms and slit-lamp findings were largely resolved. We suggest that endothelium pump failure was involved in this acute corneal decompensation case similar to the mechanism in retinal pigment epithelium.
  • [ X ]
    Öğe
    Association Between Dry Eye and Polycystic Ovary Syndrome: Subclinical Inflammation May Be Part of the Process
    (Lippincott Williams & Wilkins, 2021) Asfuroglu, Yonca; Kan, Ozgur; Asfuroglu, Mahmut; Baser, Emre
    Purpose: To evaluate the changes in tear function in patients with polycystic ovary syndrome (PCOS) and establish whether there is a correlation between hormonal levels, novel hematologic biomarkers, and dry eye parameters. Material and Method: Forty-seven patients with PCOS and 43 age-matched patients with unexplained infertility were included in the control group. Follicle-stimulating hormone, luteinizing hormone, estradiol, thyroid-stimulating hormone, prolactin, dehydroepiandrosterone sulfate (DHEA-S), 17-OH progesterone, fasting and postprandial glucose, fasting insulin, and cholesterol metabolites were evaluated in both groups. In addition, the neutrophil-to-lymphocyte ratio (NLR) and platelet-to-lymphocyte ratio were obtained from a complete blood count. The Ocular Surface Disease Index (OSDI) questionnaire was administered, and all patients underwent tear break-up time (BUT) and Schirmer I tests. Bivariate correlations were investigated using Spearman correlation coefficient analysis. Results: The mean age of the PCOS group and the control group was 27.66 +/- 3.96 years and 29.28 +/- 6.83 years, respectively. Schirmer I test scores and BUT values were significantly lower and OSDI results were significantly higher in the PCOS group (P=0.003, P<0.001, and P=0.004). An inverse correlation was found between DHEA-S and BUT values in the PCOS group (r=-0.296, P=0.043). Similarly, a negative correlation was also present between NLR and BUT values in the PCOS group (r=-0.322, P=0.027). Conclusions: Dry eye can be well established by sensitive tests in patients with PCOS. The severity of dry eye may be correlated with the level of inflammation and hyperandrogenism.