Amaç: Okul öncesi yaş grubundaki sağlıklı çocuklarda pupil büyüklüğünün; Stratus OKT ile elde edilen maküla, RSLT kalınlık ve optik disk ölçümlerine etkisini incelemek. Gereç ve Yöntem: Çalışmada, yaşları 3 ile 6 arasında değişen 111 sağlıklı çocuk incelendi. Çocuklar, dilatasyon öncesi ve sonrası maküla, RSLT kalınlığı ve optik disk parametreleri için OKT ile ölçüldü. Çocukların pupil boyutları, Scheimpflug kamera ile dilatasyon öncesi ve sonrasında belirlendi. Pupil dilatasyonu öncesi ve sonrasında elde edilen veriler istatistiksel olarak karşılaştırıldı. Bulgular: Çalışmamıza 94 çocuğun 147 gözü dahil edildi. Çocukların ortalama yaşı 58.56±11.24 ay (aralık:34-78 ay). Çocukların dilatasyon öncesi ve sonrası pupil çapı sırasıyla 2.76±0.50 mm (aralık:1.5 mm-4.57 mm) ve 7.27±1.02 mm (aralık:3.08 mm-9.70 mm) idi. Pupil dilatasyonu öncesi ve sonrası elde edilen ölçüm değerleri arasında istatistiksel olarak anlamlı farklılık sadece nazal-iç, superior-iç ve nazal-dış maküla segmentlerinde elde edildi (sırasıyla, p
Purpose: To evaluate the effect of pupil size on macular and RNFL thickness, and optic disc measurements obtained by Stratus OCT in healthy preschoolers. Material and Methods: One hundred and eleven healthy children aged between 3 and 6 years were examined in this study. The children were measured by optical coherence thomography (OCT) before and after pupil dilation for macula and RNFL thickness, and optic disc parameters. The pupil sizes of the children were determined by the Scheimpflug camera before and after pupil dilation. The measurements taken before and after pupil dilation were compared statistically. Results: One hundred and forty seven eyes of ninety four children were included in our study. The mean age of the children was 58.56±11.24 months (range: 34-78 months). The pupil size of the children before and after dilation was 2.76±0.50 mm (range: 1.5 mm- 4.57 mm) and 7.27±1.02 mm (range: 3.08 mm- 9.70 mm), respectively. There was a statistically significant difference between the values obtained before and after pupil dilation in the nasal inner, superior inner, and nasal outer macular segments (p<0.001; p<0.001 and p=0.046, respectively). The values before dilation were significantly different from those after dilation in the parameters of cup area, cup area/disc area ratio, vertical cup/disc ratio, and signal strength of optic disc scan (p=0.034; p= 0.036; p=0.005 and p=0.001, respectively). There was no statistically significant difference between the values before and after pupil dilation for all RNFL parameters. Conclusion: In preschoolers, pupil size may partially affect the measurements of the macula and optic disc obtained by OCT-3 whereas the RNFL measurements are not influenced by pupil size.
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