Influence Of Residual Astigmatism On Patient Satisfaction And Dysphotopsias After Implantation Of A Novel Full Range Of Vision Iol

Residual astigmatism may be associated with patient satisfaction in terms of visual function and perceived dysphotopsias after multifocal FROV IOL implantation. This study evaluates the influence of residual astigmatism on dysphotopsias and patient satisfaction with near vision following implantation of a novel FRoV IOL.

Nine Canadian and 23 US clinical sites.

This study prospective, multicenter, clinical trials collected and analyzed postoperative 6 months data of the residual cylinder of a full range of vision (FRoV) enVista Envy IOL (Bausch + Lomb). Negative cylinder notation was used in the residual cylinder values for analysis. The worst residual cylinder over both eyes was considered for analysis. The relationships of residual cylinder with frequency, severity, and bothersomeness of glare and halos and patient satisfaction with near vision were assessed using a logistic regression model.

No statistically significant relationship was observed between the residual cylinder and the frequency, severity, and bothersomeness of glare and halos (all p>0.05). Logistic regression found that residual cylinder was not a predictor of severe response to frequency, bothersomeness, and severity of glare (odds ratio=1.7, p=0.4209) or halos (odds ratio=1.6, p=0.1945). The model results suggests that the chances of poor satisfaction reduce as the magnitude of residual astigmatism decreases for patient satisfaction with near vision (odds ratio=0.077, p=0.0212).

The present study results showed that residual cylinder following the implantation of enVista Envy FRoV IOL has no statistical effect on the frequency, severity, and bothersomeness of glare and halos.  Patients with lower amounts of residual astigmatism exhibited better postoperative satisfaction.