Long-term visual acuity results from cataract surgery and its association with self-reported visual function:...

Area of Science:

• Ophthalmology
• Clinical Research
• Psychometrics

Background:

• Cataract surgery aims to restore vision.
• Assessing patient-reported visual function is crucial for evaluating surgical outcomes.
• The Catquest-9SF is a patient-reported outcome measure for visual function.

Purpose of the Study:

• To assess the association between long-term refractive outcomes of cataract surgery and patient-reported visual function using the Catquest-9SF.
• To validate the Portuguese version of the Catquest-9SF for cataract patients.

Main Methods:

• 101 patients undergoing cataract surgery were enrolled.
• The Catquest-9SF questionnaire was administered pre-operatively and at 30 days and 1 year post-operatively.
• Statistical analysis included variance analysis and assessment of psychometric properties.

Main Results:

• Visual acuity was the primary variable correlating with Catquest-9SF scores.
• The Catquest-9SF demonstrated good psychometric properties, including a people separation index of 2.95.
• Data explained 69.9% of the variance, indicating significant findings.

Conclusions:

• The Portuguese Catquest-9SF is a valid, one-dimensional tool for assessing visual dysfunction in cataract patients.
• The questionnaire effectively quantifies visual improvements post-surgery.
• Catquest-9SF results may predict and align with visual acuity improvements.