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Indications for Phakic Implantable Collamer Lens with Central Port Exchange or Explantaion in Patients with and without Keratoconus

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First Author: A.Alhamzah SAUDI ARABIA

Co Author(s):    A. Alhamzah   S. Alharbi   F. Alfardan   T. Aldebasi   T. Almudhaiyan        

Abstract Details

Purpose:

To evaluate the causes of Phakic Implantable Collamer Lens (ICL) exchange/removal in patients with and without Keratoconus (KC) at two tertiary hospitals in Riyadh, Saudi Arabia.

Setting:

Two tertiary hospitals. In Riyadh, Saud Arabia.

Methods:

All patients who underwent ICL model V4c with central port exchange/removal between January 2013 to January 2020.

Results:

Out of 2283 of ICL insertion; 46 implants (2%) undergone an ICL exchange/removal, of which 14 (30.4%) were keratoconus patients. Indications in non- keratoconus group were vault measurement, cataract, increased intraocular pressure,refraction, and dissatisfaction in 22 (68.75%), 4 (12.5%), 3 (9.37%), 2 (6.25%), and 1(3.12%), respectively. ICL exchange/removal in keratoconus group was inaccurate vault sizing in 11 patients (78.57%), inaccurate refraction in 2 patients (14.28%), and dissatisfaction was the cause in one patient (7.14%). A single instrument was used to measure White-To-White (WTW) in 27 eyes (58%) compared to the use of multiple instruments in 12 eyes.

Conclusions:

ICL; V4c implants provide good and predictable refractive outcomes in long term with exchange/removal rate comparable with other studies. Improper vault size was the most common cause of ICL exchange followed by cataract.

Financial Disclosure:

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