ESCRS - PO850 - Higher Order Aberrations And Modulation Transfer Function In Eyes With Asymmetric Refractive And Non-Diffractive Edof Iols

Higher Order Aberrations And Modulation Transfer Function In Eyes With Asymmetric Refractive And Non-Diffractive Edof Iols

Published 2025 - 43rd Congress of the ESCRS

Reference: PO850 | Type: Poster | DOI: 10.82333/8qjj-6j68

Authors: Smitesh Kiran Shah 1 , Siddharth Sheth* 2 , Sonal Shah 2

1Cataract ,Isha Netralaya,Thane,India, 2Cataract and Refractive Surgery,Isha Netralaya,Thane,India

Purpose

To compare higher order aberrations (HOA) and modulation transfer function (MTF) in eyes implanted with asymmetric refractive and non-diffractive EDOF IOLs

Setting

Tertiary private eye hospital, India

Methods

A retrospective study where subjects implanted with asymmetric refractive (Lentis Comfort, Teleon Surgical BV) and non-diffractive (Vivity, Alcon) EDOF IOL,  aged between 40 -75 years, post-operative best corrected visual acuity 0.2logMAR or better, pre operative corneal astigmatism <1.50D and cataract grade NS I-III were included in the study. Subjects with any ocular pathologies, irregular astigmatism, previous refractive surgery, and intra-operative complications were excluded. At 1 month follow up, internal HOA (3rd, 4th and 5th order) and MTF at 5,10,15,20,25, 30 cycle per degrees were obtained using i-Trace aberrometer for 4mm fixed pupil and compared among two groups.

Results

41 and 35 eyes were implanted with asymmetric refractive and non diffractive EDOF IOL respectively. The Mean±SD age of the subjects implanted with asymmetric refractive and non diffractive EDOF IOL were 58.80±10.3 and 53.7±12.5 year respectively (Two sample, p=0.17). Higher order aberrations were found to be similar with both the IOLs (two sample t test, p>0.05) except secondary coma and penatfoil which were reduced with non diffractive IOL. MTF at all spatial frequencies were similar in both the IOLs (Two sample t test, p>0.05).

Conclusions

Internal HOA up to fourth order was similar with both the IOLs however secondary coma and pentafoil were reduced with non diffractive IOL. MTF were also found to be similar in eyes implanted with both IOLs.