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Predictors of functional vision changes after cataract surgery: the PROVISION study
Varun Chaudhary1, Marko Popovic1, Julie Holmes1
1Hamilton Regional Eye Institute, Saint Joseph's Healthcare, McMaster University, Hamilton, Ont.
Summary
Functional vision improved for most patients after cataract surgery. Preoperative vision scores were the main predictor of this improvement, highlighting the importance of baseline assessment for predicting outcomes.
Area of Science:
- Ophthalmology
- Vision Science
Background:
- Cataract surgery is a common procedure to restore vision.
- Predicting postoperative functional vision is crucial for patient management.
Purpose of the Study:
- To identify predictors of functional vision change after cataract surgery.
- To evaluate the role of time-to-treatment, demographics, and ocular health in vision outcomes.
Main Methods:
- Prospective cohort study of 343 cataract patients.
- Used the Catquest-9SF questionnaire pre- and postoperatively.
- Multivariate linear regression analyzed predictor variables.
Main Results:
- 83.7% of patients experienced improved functional vision.
- Mean baseline Catquest-9SF score was the sole significant predictor (adjusted R² = 0.47, p < 0.001).
- A 1-logit increase in baseline score predicted a 0.74-logit improvement.
Conclusions:
- Functional vision significantly improves after cataract surgery for the majority of patients.
- Preoperative functional vision, as measured by the Catquest-9SF, is a key predictor of postoperative improvement.
