Posters

Comparative analysis of visual outcomes, defocus curve and patient satisfaction in patients with bilateral implantation of diffractive bifocal (+2.50 D) and diffractive trifocal IOLs

Poster Details

First Author: B.Kashyap INDIA

Co Author(s):    B. Kashyap   N. Gajendragadkar   B. Kashyap              

Abstract Details

Purpose:

The purpose of the study was to compare Visual Acuity, Contrast Sensitivity (CS) outcomes, Defocus Curve and Level of Patient Satisfaction in patients with bilateral implantation of Diffracting trifocal Intra Ocular Lens (Panoptix) and Diffractive Bifocal Intra Ocular Lens (Restor +2.50 D) at 90 days for Indian Population.

Setting:

This is a comparative study which included 48 eyes of 24 patients at a Tertiary Eye Care Hospital, India

Methods:

This is a comparative study which included 48 eyes of 24 patients who underwent bilateral cataract surgery with Implantation of Diffractive Trifocal IOL (Gr-1) and Diffractive Bifocal IOL (Gr-2) for equal number of patients (12) in both the groups at Tertiary Eye Care Hospital, India. Post operative Evaluation included Binocular Uncorrected Distance Visual Acuity (UDVA), Binocular Uncorrected Intermediate Visual Acuity (UIVA) and Binocular Uncorrected near Visual Acuity (UNVA), Mesopic and Photopic Contrast Sensitivity by Modular Transfer Function, Defocus Curve and patient satisfaction at 3 months follow up.

Results:

At 90 days, mean UDVA was 0.991 for Gr-1 and 0.975 for Gr-2, p=0.308, 95%CI(-0.158, 0.049) Mean UIVA at 60 cms in Gr-1 and Gr-2 were 0.97 and 0.66, statistically significant, p=0.000, 95%CI(0.256, 0.357) Gr-1 (0.98) had comparable UNVA with Gr-2 (0.96), p=0.394, 95%CI(- 0.022, 0.055) Binocular CS measured was significantly less in Gr-2 at photopic & mesopic conditions as compared to Gr-1 (p=0.00). UIVA for Gr-1 is significantly higher (med=10) vs. Gr-2(med=5), p=0.000. The medians for UCDA & UNVA was not significant (p=0.26) Defocus curve significantly better from -1.0D to -1.5D in Gr-1 & comparable between -2.0D to -4.0D

Conclusions:

In our study, we have found better intermediate visual outcomes with the Diffracting Trifocal IOLs, as majority of the cases in Indian population have shorter arm length. While the Diffracting Trifocal and Diffractive Bifocal IOL (+2.50 D) are found to be comparably satisfactory for avid readers, Diffractive Trifocal IOLs provided significant satisfaction to intermediate distance workers, computer workers, card players and also in patients working in low contrast

Financial Disclosure:

None