ABSTRACT
PURPOSE: This study compares the outcomes of unilateral cataract surgery to those of bilateral cataract surgery in patients with cataract of both eyes. METHODS: Among a total of 153 patients, 61 underwent unilateral surgery and 92 bilateral surgery. RESULTS: The unilateral and bilateral surgeries were similar in demographic and ocular characteristics including visual acuity and visual function-14, except patient-reported factor, such as trouble with vision at baseline. The patient-reported factor was more serious in bilateral surgery than in unilateral surgery. The changes of three outcomes were associated not with unilateral eye or bilateral eye surgery, but with each baseline condition. CONCLUSION: The patient-reported factors such as symptom score, trouble with vision were the significant outcomes to decide unilateral or bilateral surgery in patients with cataract of both eyes. The result of unilateral or bilateral surgery did not affect the outcomes of cataract surgery after 12 months.