Scaling Sustainable Glaucoma Care in India Through Training and Technology

India faces a mounting glaucoma crisis, with over 12 million cases, yet, concerningly so, 90% remain undiagnosed until irreversible vision loss occurs. As the third leading cause of blindness globally and second worldwide, glaucoma demands scalable, sustainable solutions amid resource constraints, an ageing population, and environmental pressures. Healthcare contributes 4.4-5% to global GHG (Greenhouse Gas) emissions, and ophthalmology’s high-volume outpatient model risks amplifying this without high-value care, balancing efficacy, affordability, and eco-responsibility.

Glaucoma Burden: The Toll it Takes

Glaucoma affects 2-3% of Indians over 40, projected to surge with 895 million global vision-impaired by 2050. Topical drops dominate first-line treatment, but poor adherence drives progression, generating massive plastic waste, each bottle yields 7kg CO₂e yearly, worsened by 71% volume wastage. Rural-urban divides exacerbate access issues, with travel emissions dominating clinic footprints. High-value care eliminates waste while preserving outcomes, essential for India’s public-private models.

Training for Sustainable Practices

Upskilling mid-level providers stands as a game-changer for India’s glaucoma battle. Selective Laser Trabeculoplasty (SLT), a quick, office-based laser procedure for open-angle glaucoma that lowers eye pressure by targeting the eye’s drainage system, drastically cuts medication dependence and waste when optometrists train through eye care modules, bringing SLT right to tier-2 cities, slashing tertiary referrals by around 50%.

Workshops integrating Minimally Invasive Glaucoma Surgery (MIGS) with cataract surgery equip Indian surgeons to control intraocular pressure (IOP) long-term without extra drops or vision risks, as local studies affirm. Embedding patient education during training sharpens adherence, mirroring homegrown successes.

Technology’s Role in Efficiency

Teleophthalmology, telemedicine focused on eye care, using digital tools to connect patients especially in remote areas with ophthalmologists for screening, diagnosis, monitoring, and consultations, is revolutionizing glaucoma screening across India, with our homegrown models saving anywhere from 2.89 to 176kg of CO₂e per consult through smart rural hubs that bring care closer to patients. Teleophthalmology enables early detection of conditions like diabetic retinopathy or glaucoma without in-person visits, improving access while cutting travel and wait times.

AI-powered OCTA (Optical Coherence Tomography Angiography) and fundus imaging, which is the back inner surface of the eye, including the retina, optic disc, macula, and blood vessels, spot early glaucoma with an impressive 95% sensitivity, stepping in for invasive tests while dramatically cutting down on unnecessary appointments. Home OCT apps take it further, empowering self-monitoring that personalizes treatment and slashes in-clinic visits by 36%, much like innovations proven at Stanford. Meanwhile, portable SLT lasers and MIGS tools, teamed up with AI triage boasting 89% accuracy for follow-ups, decentralize expert care to where it’s needed most.

Policy Push & Challenges to Navigate

On the policy front, India can lead by weaving Selective Laser Trabeculoplasty (SLT) seamlessly into National Programme for Control of Blindness and Visual Impairment (NPCBVI) guidelines, making it a frontline standard for glaucoma care nationwide. Subsidizing MIGS procedures much like the UK’s NHS model would unlock affordability, bringing advanced IOP control to public hospitals without breaking the bank. Meanwhile, channeling funds through the Ayushman Bharat Digital Mission to scale AI tools promises game-changing diagnostic reach, especially in underserved corners.

Sure, upfront costs pose hurdles, but the returns are compelling, MIGS alone slashes lifelong drop expenses. Equity can’t be an afterthought either; inclusive AI training programs must empower rural providers and patients alike, ensuring no one gets left behind in disparities. These steps don’t just sustain care, they transform glaucoma management into a smarter, greener, more equitable reality for all Indians.

Way Forward

Scaling sustainable glaucoma care requires public-private training hubs, tech subsidies, and audits, targeting 50% emission cuts without compromising sight-saving goals. All stakeholders must unite to adopt high-value practices, ensuring healthier eyes and a healthier planet. This isn’t just about vision preservation; it’s a call to action for ophthalmologists, policymakers, and institutions to collaborate on greener protocols that deliver equitable access nationwide. Together, we can turn India’s glaucoma challenge into a global model of sustainable eye care excellence.

Written By: Dr Rishi Raj Borah , Country Director, Orbis (India)