ESCRS - PP22.05 - Advantageous Effect Of Pupil Dilation On The Optical Biometry Axial Length Measurement In Individuals With Dense Cataract

Advantageous Effect Of Pupil Dilation On The Optical Biometry Axial Length Measurement In Individuals With Dense Cataract

Published 2023 - 41st Congress of the ESCRS

Reference: PP22.05 | Type: Free paper | DOI: 10.82333/0r1j-w809

Authors: Emmanuel Bettach* 1 , Yishay Weill 2 , Hashem Totah 1 , David Zadok 1 , Adi Abulafia 1

1Shaare Zedek medical center,Jerusalem,Israel, 2Ophthalmology and Vision Sciences,Toronto,Canada

Purpose

Patients with dense and advanced cataracts, present a unique challenge in the preoperative evaluation. The biometric axial length (AL) measurement may fail in this population due to the opacity of the crystalline lens. The aim of this study was to evaluate the effect of pharmacologic pupil dilation on the AL measurement in patients with dense cataracts and previous failed AL measurements performed without pupil dilation.

Setting

Retrospective case series

Methods

All participants underwent swept-source optical coherence tomographic (SS-OCT) biometry. Those with failed AL measurements due to dense cataract underwent an additional SS-OCT biometric evaluation after pupil dilation, and the AL measurement of the same eye was recorded.

Results

Eighty patients had failed AL measurements because of advanced cataract during the study period. After pupil dilation, AL measurements were successfully obtained in 24 (30%) of the 80 eyes.

Conclusions

Pharmacologic pupil dilation improved the rate of successful SS-OCT biometrically measured AL in patients with failed AL measurement due to dense cataract. These results could reduce the need of additional AL measurements by more complicated alternative means and improve the measurement accuracy in this group.