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Evaluation of visual outcome after cataract surgery in patients with legal blindness

Poster Details

First Author: M.Ji SOUTH KOREA

Co Author(s):    S. Lee   S. Han   J. Hyon              

Abstract Details


To investigate the outcome of cataract surgery in patients with legal blindness defined as best-corrected visual acuity (BCVA) of 20/1000 or lower and to determine factors influencing the visual outcome in these patients.


Kangwon National University Hospital


Medical records of 68 eyes of 62 patients diagnosed with legal blindness and underwent cataract surgery were reviewed. The study population was divided into 3 groups based on types of cataract (Group A : posterior subcapsular cataract, Group B : mature or brunescent cataract, and Group C : cataract combined with other ocular diseases). Data including demographics, predisposing factors, BCVA before and 6 months after surgery and post-operative complications were collected and analyzed.


Preoperative logMAR BCVA was 1.88�Â�±0.24, 2.24�Â�±0.26 and 1.96�Â�±0.31 in Groups A, B and C, respectively (P=0.003). Postoperative BCVA was 0.49�Â�±0.35, 0.51�Â�±0.47and 0.90�Â�±0.53 in Groups A, B and C, respectively (p=0.003). Significant visual improvement was shown in all 3 groups (P<0.001 in Groups A and B and, P = 0.001 in Group C). There was significant difference in visual improvement among the 3 groups P<0.001). Although there was no significant difference in visual improvement between groups A and C (P=0.379), significantly higher visual improvement was achieved in group B compared to other groups.


Cataract surgery can be recommended even for patients with legal blindness.

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