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Cataract surgery is known to have a beneficial impact on quality of life. Recent studies claimed that disease-specific measures of functional impairment are more sensitive to preoperative functional impairment and gains from surgery than are generic measures of general health and quality of life. The purpose of this study is to ascertain whether measures of general health provide additional information on the improvement of patients following cataract surgery over measures of visual function. This is an observational prospective study of a cohort of 150 consecutive patients who underwent phacoemulsification surgery and were evaluated for changes in health-related quality of life with the Medical Outcomes Study Short-Form 36 (SF-36) and improvement in visual-related functioning with the 14-item Visual Function test (VF-14). All of the SF-36 subscales improved post operatively with the magnitude of improvement in VF-14 significantly affecting all subscales except for the Vitality subscale. Treatment effects were significant for the SF-36 subscales ‘Role limitations due to physical health’, ‘Role limitations due to emotional problems’, ‘Social Functioning’ and ‘General Health’, while taking into account the difference in VF-14 scores pre and postoperatively (p &lt; 0.001). The outcome of phacoemulsification surgery for cataract cannot be completely ascertained solely by the measurement of improvement on tasks related to visual functioning, leaving unaccounted a component related to self-appraisal of ability in everyday and social function, as well as the general feeling of subjective health. The concurrent use of general health measures with visual functioning measures to account for the general improvement on health status following cataract surgery is thus justified.

Improvement in general health after cataract surgery is not limited to vision-specific function