What percentage of visual impairment is considered preventable or treatable worldwide?

The correct answer is 80%. This figure highlights that a significant portion of visual impairment globally can be addressed through various means, such as timely medical interventions, provision of glasses, cataract surgery, and treatment of diabetic retinopathy and glaucoma, among others. According to organizations like the World Health Organization (WHO), a large number of cases of visual impairment can be either preventable or treatable, emphasizing the importance of awareness, access to healthcare, and early detection in reducing the burden of visual impairment.

This statistic serves to underline the potential impact of improving eye care services and educating populations on eye health, ultimately leading to better visual outcomes for many individuals who might otherwise suffer from unnecessary blindness or visual disabilities. By focusing efforts on prevention and treatment, we can significantly reduce the prevalence of visual impairments worldwide.