A Prospective Observational Study To Compare Manifest Astigmatism Following Occi With Monofocal Intraocular Lens And Monofocal Toric Intraocular Lens In Patients With 1D - 2D Of Total Keratometric Astigmatism (Δtk) Undergoing Phacoemulsificatiion
Published 2024 - 42nd Congress of the ESCRS
Reference: PO511 | Type: Free paper | DOI: 10.82333/zse4-hy63
Authors: Amit Raj* 1 , Supriya Sharma 1 , Shamshad Ahmad 2 , Prateek Nishant 3
1Ophthalmology,All India Institute of Medical Sciences ,Patna,India, 2Community and Family Medicine,All India Institute of Medical Sciences ,Patna,India, 3Ophthalmology,ESIC Medical College Bihta,Patna,India
Purpose
To compare postoperative manifest astigmatism as measured on automated refractometer at 3 months between OCCI with Monofocal IOL, and steep axis corneal incision with Monofocal T-IOL.
To measure and compare changes in Total keratometric astigmatism (ΔTK), Uncorrected visual acuity (UCVA), Best corrected visual acuity (BCVA) preoperatively and at 3 months postoperatively in the two groups
Setting
A hospital-based Prospective Observational Study,Patients who reported to the Ophthalmology OPD of a Tertiary health care center with cataract and preoperative total keratometric astigmatism in range of 1.0 D – 2.0D (inclusive of both values) as assessed on an SS-OCT optical biometer (IOL Master 700, Carl Zeiss GmBH, Germany) and decided to undergo cataract surgery at this centre were included in the study
Methods
A hospital-based Prospective Observational Study,Patients who reported to the Ophthalmology OPD of a Tertiary health care center with cataract and preoperative total keratometric astigmatism in range of 1.0 D – 2.0D (inclusive of both values) as assessed on an SS-OCT optical biometer (IOL Master 700, Carl Zeiss GmBH, Germany) and decided to undergo cataract surgery at this centre were included in the study
Results
Sixty eyes of 52 patients operated in the department of Ophthalmology were included. Out of these, 30 eyes of 25 patients were included in group A and 30 eyes of 27 were included in group B.The overall mean age was 58.3±11.2 years for group A and 60.1±8.78years for group B.In our study, quantum of corneal astigmatism at baseline for group A was -1.379± 0.307D and for group B was -1.411± 0.274D.In our study, mean value of cylindrical component of manifest refraction measured postoperatively in Group A was -0.842±0.418 & -0.888±0.385 while in Group B was -0.537±0.343 & -0.450±0.266 at 6 weeks and 3 months respectively.In our study, mean reduction in corneal astigmatism using OCCI at the end of 3 months was 0.597D.
Conclusions
Toric IOLs in itself are quite expensive and non affordable for many, implanting Toric IOLs at the planned axis with great precision requires high-end machines and fair surgical skill which is not available everywhere. So, OCCI is much cost effective alternative in patients with mild to moderate range of astigmatism, and it may not require sophisticated image guidance system as much surgical expertise as implanting a Toric IOL.