Posters

Correlation between preoperative sizing of implantable collamer lens by white to white in different techniques and postoperative vault size

Poster Details

First Author: F.Aldosari SAUDI ARABIA

Co Author(s):    F. Aldosari   J. Vargas   A. Alothman   F. Aldahash           

Abstract Details

Purpose:

To evaluate correlations between preoperative sizing of Implantable Collamer Lens (ICL) by different white-to white techniques, and postoperative vault size measured by optical coherence tomography (OCT).

Setting:

King Khalid Eye Specialist Hospital in Riyadh, Saudi Arabia

Methods:

This retrospective study included 232 eyes of 157 patients who were candidates for implantation of Implantable Collamer Lens (ICL) with different refractive error, In most of eyes Orbscan WTW, pentacam WTW and caliber manually were measured. Patients were divided into 3 groups based on ICL sizing method used for lens ordering (caliber group, orbscan group and pentacam group). Postoperative vault was measured 3 months after surgery by anterior segment OCT.

Results:

The mean WTW distance measurements were 11.931 mm as obtained with the Pentacam HR , 11.876 mm as obtained with the Orbscan IIz and 11.953 mm as obtained by caliber . postoperatively the vault size found to be within the normal range in 68.67% in caliber group , 61.90 % in orbscan group and 67.21% in pentacam group . There was no statistical difference in achieved ICL vault between three groups

Conclusions:

Based on the statistical analysis of our results The observed differences in WTW distance readings between the caliber, Pentacam and the Orbscan are not clinically relevant, and the 3 method could be used interchangeably in clinical practice in order to achieve good ICL vault .

Financial Disclosure:

None