PREDICTORS OF POSITIVE DYSPHOTOPSIAS WITH A TRIFOCAL IOL

To assess predictive factors associated with glares and halos in patients undergoing cataract surgery with PanOptix trifocal IOL implantation. 

Single center retrospective study.

One hundred and fourty eyes from 70 patients with cataract were bilaterally implanted with a trifocal PanOptix aspherical diffractive lens between 2017 and 2019 and followed-up for six months. Both pre- and post-operatively all patients were evaluated for refraction, corneal topography and aberrometry. Patients were assessed at 1 day, 6 days, 1 and 6 months after surgery. One and six months post-operatively patients were asked to complete a satisfaction questionnaire that included dysphotopsias assessment. Main outcome measures were dysphotopsias at 1 and 6 months of follow-up. Predictors of positive dysphotopsias at 1 and 6 months were also analyzed.

A higher corneal coma was associated with more mild halos at 6 months with no association regarding other degrees of severity. The lower the age the higher the glare or halos, the higher the lens thickness and the lower the anterior chamber depth or chord μ the less halos at 1 month. A significant proportion of patients had more none/mild compared to moderate/severe glare and halos both at 1 and 6 months post-operatively. Baseline BCVA was the only predictor of halos at 1 month and glare and halos at 6 months post-surgery.

On multivariate regression analyses the only predictor of positive dysphotopsias was baseline visual acuity, suggesting that patients that have a better visual acuity before surgery are more demanding regarding visual outcomes after surgery.