Retropupillary fixation of iris-claw intraocular lens versus transscleral sutureless fixation of intraocular lens for aphakic eyes without capsular support /
دراسة مقارنة بين تثبيت عدسة المخلب القزحي خلف الحدقة و تثبيت العدسة الخلفية عبر الصلبة بدون خيوط جراحية لحالات اللاعدسية مع عدم وجود المحفظة
Asmaa Mahmoud Shuaib ; Supervised Hala Al Hilaly , Ahmed Mostafa Kamal , Yasmine Mohammed Elsayed
- Cairo : Asmaa Mahmoud Shuaib , 2017
- 140 P. : charts , facsimiles ; 25cm
Thesis (Ph.D.) - Cairo University - Faculty of Medicine - Department of Ophthalmology
The iris-fixated lenses include the iris-claw lens and iris sutured posterior chamber lenses which are fixated to the midperipheral iris. The iris-claw lens can be fixated either in the anterior chamber or retropupillary. (De Silva SR et al., 2011) The anterior chamber iris-claw lens has the risk of endothelial cell loss. (Kim M et al., 2008) So, retropupillary fixation of iris-claw lens is considered to be of better cosmetic benefit and lower effect on corneal endothelium. (Kohnen T et al., 2010) Because of its anatomic location, the scleral fixated PCIOL is more appropriate for eyes with compromised cornea, peripheral anterior synechiae, shallow anterior chamber, deficient iris tissue, glaucoma and in young patients who have a life expectancy of 10 years or more. (Dick HB & Augustin AJ., 2001) However, the scleral-fixated PCIOLs have complica»tions such as late IOL dislocation, due to suture degradation (Price MO et al., 2005). So, IOL implantation by sutureless transscleral fixation has gained popularity to avoid these complications and provide more stability. (Kumar DA, 2012) To our knowledge, the two surgical techniques of retropupillary iris-claw lens implantation and PCIOL transscleral sutureless fixation were not compared in pediatric age group to date
Aphakic eyes without capsular support Iris sutured posterior chamber lenses The iris-fixated lenses include the iris-claw lens