Posters

A new trifocal intraocular lens for presbyopia correction. Our initial results from tertiary hospital in eastern India

Poster Details

First Author: S.Parija INDIA

Co Author(s):    C. Poddar   R. Kumar   K. Chakraborty   A. Gupta           

Abstract Details

Purpose:

Cataract surgery in today’s date is more a refractive surgery. Patients now have high expectations after cataract surgery and want a spectacle independent life. Hence, new trifocal intraocular lenses are developed to take care of vision for the entire range, i.e. near, intermediate and distance vision. The purpose of this study is to report the short-term visual outcomes of a new sinusoidal trifocal intraocular lens .

Setting:

Tertiary Hospital in Eastern India

Methods:

All consecutive cataract patients undergoing phacoemulsification with trifocal intraocular lens implantation (IOL) at tertiary hospital were included in the study. The exclusion criteria were the presence of other ocular pathologies or preoperative astigmatism >1.5 dioptres (D). Patients who had any intraoperative complications were excluded from analysis. All patient after a follow-up of one month underwent testing for monocular defocus curve; uncorrected and best corrected visual acuity in both photopic and mesopic conditions, for all distances ranges ( near, intermediate and distance) and contrast sensitivity testing. Patients completed a visual satisfaction questionnaire after three months of surgery.

Results:

Twenty nine eyes of 22 patients undergoing phacoemulsification and trifocal intraocular lens were analysed. The mean uncorrected visual acuity in photopic conditions was 0.03 LogMAR for distance, while 0.12 Log MAR for intermediate and 0.02 Log MAR for near ranges. All patients achieved an uncorrected visual acuity better than 0.3 LogMAR (20/40 Snellen equivalent) for distance and near vision and 94.8% of patients for intermediate vision. Mesopic uncorrected visual acuity values were similar to photopic values. Monocular defocus curves showed that the best visual acuity was reached at a vergence of 0.00D. Contrast sensitivity was maintained in both photopic and mesopic conditions. All patients expect two (94.8%) reported never using any spectacle correction. The complains of halos and glare was low in these cases.Most of the patients were fairly satisfied with their vision after surgery.

Conclusions:

The new sinusoidal trifocal IOL provides good short-term visual outcomes, with good intermediate performance and excellent patient-reported satisfaction. Contrast sensitivity and vision at night was good suggesting less pupil dependency.

Financial Disclosure:

None