What is the success rate of cataract surgery?

• A. 70-80%
• B. 85-90%
• C. 95-100%
• D. 60-70%

Answer: (B)

Cataract surgery is extremely successful in restoring vision for most patients. The success rate refers to how often people achieve meaningful improvement after removing the cloudy lens and replacing it with an artificial one. With modern techniques and intraocular lenses, a large majority experience improved vision, and widely cited figures place this success in the mid-to-upper 80s up to around 90%.

That range is realistic because, while the procedure is very effective, a few factors can prevent perfect outcomes for every patient. Some eyes may still need glasses to optimize vision, residual refractive error may remain, and other eye conditions (like retinal or optic nerve problems) can limit final vision despite a technically successful cataract removal. Extremely high figures (near 95–100%) aren’t universal due to these real-world variables, while much lower ranges would not reflect the typical effectiveness of modern surgery.

So, 85–90% best captures the common, realistic success rate for cataract surgery in everyday practice.