One in eight cataract surgical patients lost at least two lines of visual acuity within the first 2 years after their surgery. The Cataract Surgery and Age-Related Macular Degeneration Study involved 1,936 patient who were age 65 years and older. Visual acuity data was available for 1,809 of the study participants at 1 month post-operative and for 1,294 of the patients at 2 years. The cataract surgery was performed between 2004 and 2007 and researchers evaluated both presenting and pinhole visual acuity as well¬†utilized¬†retinal photography. After 2 years, 71.9% of the patients maintained the visual acuity that they had at 1 month. 15.4% of participants actually had an improvement in their pinhole visual acuity while 12.7% recorded a reduction in visual acuity. Researchers noted that the strongest risk factor in reduction of vision after the surgery is the age of the patient and the presence of macular lesions.
Visual acuity loss 2 years after cataract surgery
- by Dr. Paul Krawitz
- 17 January, 2012