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    Analysis of ganglion cell complex and retinal nerve fiber layer thicknesses in turkish population
    (Necmettin Erbakan Üniversitesi, 2021) Adam, Mehmet; Aslan Bayhan, Seray; Bayhan, Hasan Ali; Muhafız, Ersin; Bekdemir, Şükran; Gürdal, Canan
    To determine the effects of age and sex on retinal ganglion cell complex thickness and retinal nerve fiber layer thickness in the eyes of healthy individuals. Patients and Methods: We evaluated 393 healthy subjects aged 10-84 years in a cross-sectional study between November 2012 and May 2013. Linear regression analysis and Pearson’s correlation were performed to analyze the difference in the age-related changes. We evaluated the relationship between the retinal nerve fiber layer thickness and ganglion cell compl ex thickness using Pearson’ s correlation. Results: The whole population mean retinal nerve fiber layer thickness was 108.94±9.77 ?m, and decreased by 0.101 ?m/year. The most significant decrease was in the supero-temporal sector. There was no difference in the retinal nerve fiber layer thickness between sexes, except for the superior quadrant. The mean ganglion cell complex thickness was 97.45±6.42 ?m, and decreased by 0.043 ?m/year. There was no relationship between sex and ganglion cell complex thickness. The mean retinal nerve fiber layer and ganglion cell complex thicknesses exhibited a significant c orrelation. Conclusion: The ganglion cell complex thickness and retinal nerve fiber layer thickness decreased significantly with age but ganglion cell complex thickness was less af fected.
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    Reliability of YouTube videos in vitreoretinal surgery
    (Healio, 2021) Sayın, Osman; Altınkaynak, Hasan; Adam, Mehmet; Dirican, Emrah; Ağca, Okan
    BACKGROUND AND OBJECTIVE:To investigate the reliability and quality of vitreoretinal surgery videos posted on YouTube. PATIENTS AND METHODS:A search was made using the keywords “vitrectomy,” “retinal surgery,” and “vitreoretinal surgery” on YouTube. Total view counts, numbers of comments, likes and dislikes, publishing dates, and source of videos were recorded. Educational quality and accuracy of the video content were evaluated using the DISCERN score, Journal of the American Medical Association (JAMA) scoring system, and Global Quality Scores (GQS). RESULTS:There were 208 videos included in the study; 152 (73.1%) videos were uploaded by doctors and 56 (26.9%) videos uploaded by non-doctors. Mean DISCERN, JAMA, and GQS scores were 37.65 ± 10.49 (20–69), 0.82 ± 0.52 (0–4), 2.86 ± 0.86 (1–5), respectively. CONCLUSIONS:Vitreoretinal surgery videos on YouTube were of low quality and reliability. Those who want to use YouTube videos as a reference for vitreoretinal surgery should pay extra attention to selection of content.