Outcome of cataract surgery considering the preoperative situation: a study of possible predictors of the functional outcome

Aim—To analyse possible predictors of the self assessed functional outcome of a cataract extraction. Methods—The patients’ self assessed visual function was studied by use of a questionnaire, the “Catquest”, before and 6 months after surgery. All patients (n=1933, mean age 75.5 years, 66.8% women) who were undergoing cataract surgery in March 1995, in 35 diVerent departments of ophthalmology participating in the National Swedish Cataract Register, were included in the study. A routine ophthalmic examination was performed before and after surgery. The following preoperative variables were studied with regard to a possible relation to the outcome: age, sex, ocular comorbidity, best corrected preoperative vision (better eye), first or second eye surgery, other diseases with a need for long term medication, need for home help, need for subsidised travel by taxi. Results—Ocular comorbidity was strongly related to a “no benefit” outcome after surgery (p= 0.005). Second eye surgery and young age was related to a “very good benefit”outcome after surgery (p=0.0001 and p