[Beltalowda]

You misread the report; it estimates the cost of surgery at $50 to $100, and estimates the "cost per blindness or severe visual impairment reversed" at $112 to $1,250 (with low confidence). That second number is calculated along these lines:

"[W]e suppose that a program costs $5 per person screened, that 20% of those screened receive cataract surgery at a cost of $15 for transportation and $25 for the direct cost of surgery, that 10% of those who receive surgery are blind or severely visually impaired, and that surgery is 100% effective. This program spends $650 per blindness or severe visual impairment reversed. We are highly uncertain about how close these estimated values are to the true costs and uptake of programs."