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Anterior chamber iris claw lens for the treatment of aphakia in a patient with megalocornea

Poster Details

First Author: Y.Boulhen MOROCCO

Co Author(s):    R. Rachid   M. Elbelhadji                 

Abstract Details


Megalocornea is a rare congenital enlargement of the cornea greater than 13 mm in diameter. Patients with megalocornea are prone to cataract formation, crystalline lens subluxation, zonular deficiencies and dislocation of the posterior chamber intraocular lens within the capsular bag.


Hospital " 20 AOUT 1953" University Hospital Ibn Rochd of Casablanca Hassan 2 University Ain Chock of Casablanca


A 9-year-old male child was diagnosed with megalocornea and developed dislocation of the cristalline lens . We describe our approach for managing a dropped cristalline lens in the vitreous. It involves a 23-gauge transconjunctival sutureless vitrectomy using perfluorocarbon liquid and posterior chamber iris claw IOL implantation.


Megalocornea is a rare, congenital, bilateral condition with a normal histology and thickness. Males are more commonly affected as the hereditary patterns observed are either x-linked or autosomal recessive. Traditional methods of treating aphakia in patients with megalocornea involves fitting for aphakic spectacles, aphakic contact lens correction and alternate methods of IOL fixation.There are several options for secondary IOL implantation: sulcus-fixated IOLs, iris-fixated IOLs, anterior chamber IOLs,and transscleral suture-fixated IOLs. At 12 months after surgery, the lens remain in stable condition, without any evidence of intraocular inflammation. Manifest refraction, utilizing +0.50 –1.75 × 145°, yielded a best-corrected visual acuity of 9/10.


Our case illustrates that the use of the iris claw aphakia IOL is well suited for the treatment of aphakia in patients with megalocornea. The iris claw lens has been used in the past with success .

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