comparison and repeatability of higher order aberration in Myopes, Emmetropes and Post-LASIK subjects

Book Chapter

الدجين, مشاري بن رميزان . 2009

• نوع عمل المنشور: بكالوريوس
• مدينة النشر: الرياض
• عنوان الكتاب: comparison and repeatability of higher order aberration in Myopes, Emmetropes and Post-LASIK subjects

مستخلص المنشور

Abstract:
 
           This study about the aberration in the human eye specially the higher order aberration and we compare and get the repeatability of ocular high order aberrations (HOAs) in myopes , emmetropes and post-LAISK subjects.
     
           One hundred and two eyes of 51 subjects all of  whom were either students or staff of King Saud University, Riyadh, Saudi Arabia were used in this study. Informed consent of the subject was received after verbal instructions of the procedure. Mean patient age was 23 years (ranging  from 20 to 36 years)  - I require a mean and a standard deviation for the age of the subjects. This study included only emmetropic (+0.50DS to -0.25DS), myopic and post-LASIK  eyes. All subjects underwent manifest refraction, corneal topography and wavefront analysis  using the Nidek OPD scan wavefront aberrometer. 
 
          We find that the HOA for the LASIK group was higher than both the myopic and emmetropic groups.
 
 
Keywords: higher order aberration (HOA's) and  Nidek OPD scan.