ESCRS - PP13.02 - Reliability Of Intraoperative Aberrometry In Predicting Iol Power In Post Refractive Surgery Eyes

Reliability Of Intraoperative Aberrometry In Predicting Iol Power In Post Refractive Surgery Eyes

Published 2022 - 40th Congress of the ESCRS

Reference: PP13.02 | Type: ESCRS 2022 - Posters | DOI: 10.82333/gevg-z973

Authors: Krinjeela Bazgain* 1 , Parul Chawla Gupta 1 , Sonam Yangzes 1 , Jagat Ram 1 , Arun Kumar Jain 1

1Ophthalmology,Postgraduate institute of medical education and research,Chandigarh,India

Purpose

To check the reliabilty of Optiwave refractive analysis (ORA) (The ORA™ System, WaveTec Vision, Inc, Aliso Viejo, California) in calculating IOL power in post-refractive surgery eyes.

Setting

The study was done in a tertiary care centre in North India.

Methods

A prospective study that included 16 eyes which had undergone kerato-refractive surgery in the past either Radial Keratotomy (RK) or Laser insitu keratomileusis (LASIK). They underwent either Femtosecond Laser Assisted Cataract Surgery (FLACS) or conventional phacoemulsification. IOL power was calculated using IOLMaster ( ZEISS IOLMaster® 500 Carl Zeiss Meditech, Jena, Germany) and ORA in all the patients and compared. The difference between the IOL power calculated by IOLMaster and ORA was evaluated.

Results

Out of 14 patients (16 eyes) with visually significant cataract, aged 30 years and above, 6 were males and 8 females. Preoperative keratorefractive surgical procedure was LASIK in four eyes and RK in 12 eyes. Nine (56.3%) eyes underwent FLACS and Seven (43.7%) eyes underwent conventional  phacoemulsification. In all patients, the implanted IOL power was based on intraoperative ORA. The difference in the IOL power calculated by IOLMaster and ORA was significant with a p-value of 0.00 

Conclusions

In post-keratorefractive eyes with significant cataract, ORA is a more reliable predictor in calculating the IOL power in eyes undergoing either FLACS or conventional phacoemulsification.