Mexican ophthalmologist urges national policy to cut preventable vision loss

A Mexico City retina specialist is calling for telemedicine, AI screening, cataract surgery access and mandatory vision checks to treat avoidable sight loss as a public health and human rights issue. The proposal argues that late diagnosis and unequal access are leaving millions with preventable disability.

Why it matters: - Preventable vision loss affects independence, schooling, work, mobility and family life. - The proposal frames avoidable blindness as a public health, productivity and human rights issue, not just an individual medical problem. - The argument centers on access gaps that let treatable conditions become permanent disability.

What happened: - Ophthalmologist and retina specialist José Francisco Valdez López in Mexico City presented a policy reflection titled “El Derecho Humano a Ver: El Estado Mexicano Ante el Reto de la Discapacidad Visual Evitable y la Deuda de los Tratados Internacionales.” - The paper calls for AI, telemedicine, cataract surgery expansion and visual screening as public policy tools. - Valdez López said, “Ver no es un lujo. Ver es una condición básica para estudiar, trabajar, caminar con seguridad, comunicarse, usar tecnología, cuidar de otros y ejercer ciudadanía.”

The details: - INEGI data cited in the paper show that, among people age 5 and older with disabilities, difficulty seeing even while using glasses is one of the most reported limitations. - The paper says the main drivers of avoidable vision loss in Mexico include cataracts, uncorrected refractive error, diabetic retinopathy, glaucoma, macular degeneration and retinal disease. - Valdez López said many people lose sight from causes that already have solutions, including cataract surgery, glasses, retina screening and glaucoma monitoring. - The paper argues that the burden falls harder on people with lower incomes, rural residents, older adults, Indigenous communities and families with less education. - It says wealthier patients can pay for private consultations, imaging, cataract surgery, OCT scans, retinography and visual field testing, while lower-income patients often arrive too late. - The paper cites Article 4 of Mexico’s Constitution, which recognizes the right to health. - It also cites Mexico’s obligations under the U.N. Convention on the Rights of Persons with Disabilities, including Articles 25 and 26 on access to health, early detection, rehabilitation and participation. - Valdez López said losing vision because of a cataract, diabetes screening gap or lack of glasses also means the state loses productivity and fails its international commitments. - He argues visual health should be part of universal coverage, because poor vision makes it harder to study, work, travel, use technology, take medication and stay independent.

Between the lines: - The proposal is also a critique of Mexico’s current health system design. - The core issue is not only medical capacity. It is whether diagnosis and treatment reach people before vision loss becomes irreversible. - By tying eye care to rights and economic output, the paper is trying to move ophthalmology from a specialty service to a national development priority.

What's next: - Valdez López proposes a national digital eye-reading and telemedicine program using portable retinal cameras, remote reading centers and artificial intelligence for screening. - He says first-level clinics, mobile units, community centers and general medicine offices could be equipped with fundus cameras. - Images would be screened by AI and then reviewed by ophthalmologists and retina specialists. - He calls for a “Plan Cero Rezago” for cataract surgery with dedicated funding, efficient surgical days, public-private partnerships and social return measurement. - He also wants mandatory vision screening for school-age children and patients with diabetes. - For children, the proposal targets myopia, astigmatism and hyperopia that can affect learning and development. - For diabetic patients, it calls for annual fundus exams, retinography and OCT macular imaging when indicated. - The paper also proposes a national network of affordable eye studies, including retinography, macular OCT, optic nerve OCT, visual fields, corneal topography and structured referral pathways. - Valdez López says Mexico can reduce avoidable blindness if it links schools, clinics, hospitals, telemedicine, AI and surgery into one system.

The bottom line: - The message is blunt: Mexico already has many of the tools to prevent avoidable blindness. The missing piece is political will and systemwide coordination.