Abstract
Purpose: The aim of this study is to evaluate the root mean square error (RMS) of corneal higher- order aberrations in Syrian adult population in different refractive status (emmetropia, myopia, hyperopia and simple myopic astigmatism). Methods: This cross- sectional study was conducted at Tishreen University Hospital in Latakia, Syrian Arab Republic. A total of 420 patients (840 eyes), ages 18- 40 years, participated in the study. Refraction was measured with an autorefractor keratometer and expressed as a spherical equivalent. Total corneal higher- order aberrations (Coma, Spherical Aberration, Trefoil) were measured using Sirius Corneal Topography at a pupil diameter of 5 mm. Results: RMS of Coma and Spherical aberrations peaked in the hyperopia group (0.18 ± 0.08, 0.11 ± 0.02) respectively. Whereas, Trefoil was higher in the severe myopia and simple myopic astigmatism groups (0.25 ± 0.05, 0.25 ± 0.08) respectively. Conclusions: Among a Syrian population, some types of refractive status were associated with certain types of higher- order aberrations, with a significant increase in trefoil in severe myopia and simple myopic astigmatism.
Highlights
Purpose: The aim of this study is to evaluate the root mean square error (RMS) of corneal higher- order aberrations in Syrian adult population in different refractive status
This cross- sectional study was conducted at Tishreen University Hospital in Latakia, Syrian Arab Republic
RMS of Coma and Spherical aberrations peaked in the hyperopia group (0.18 ± 0.08, 0.11 ± 0.02) respectively
Summary
النتائج :بلغت ذروة خطأ الجذر التربيعي ( )RMSفي ال ّزوغانات القرن ّية الك ّل ّية عالية ال ّترتيب من نوع الفاصلة ( )Comaوال ّزوغان الكرو ّي ( )Spherical Aberrationلدى مجموعة م ّد البصر( )0.11±0.02 ،0.18±0.08بال ّترتيب .بينما كانت قيم ال ّزوغان ثلاث ّي الوريقات ()Trefoil جدول ( )3القيم المتو ّسطة لل ّزوغانات القرن ّية الك ّل ّية ( )Comaفي ع ّينة 420مري ًضا ( 840عي ًنا) وتب ًعا للحالة
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