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Detection of Eye Diseases and Referral Rates for In-Office Eye Care Across Three SIGHT Studies
Lisa A Hark1,2, Paula Anne Newman-Casey3, Prakash Gorroochurn4
1Department of Ophthalmology, Vagelos College of Physicians and Surgeons, Columbia University, New York, NY, USA.
Ophthalmic Epidemiology
|November 25, 2025
Summary
Telehealth eye screenings in community settings successfully detected high rates of eye diseases, including glaucoma, in underserved populations. This led to increased referrals for essential in-office eye care, improving access to treatment.
Area of Science:
- Ophthalmology
- Public Health
- Telemedicine
Background:
- Underserved populations often face barriers to regular eye care.
- Early detection of eye diseases like glaucoma is crucial for preventing vision loss.
- Telehealth offers a promising approach to extend eye health services into communities.
Purpose of the Study:
- To determine eye disease detection and referral rates for in-office eye care.
- To evaluate the effectiveness of the Screening and Intervention for Glaucoma and eye Health through Telemedicine (SIGHT) Studies.
- To report findings from SIGHT studies across Alabama, Michigan, and New York City.
Main Methods:
- Included individuals aged 40+ screened in community settings (federally qualified health centers, free clinics, affordable housing).
- Conducted visual acuity, intraocular pressure (IOP), and fundus photography.
- Utilized t-tests and chi-square/Fisher's exact tests to compare referred vs. non-referred groups.
Main Results:
- Referral rates for in-office eye care were 47.3% (AL-SIGHT), 42.8% (MI-SIGHT), and 66.1% (NYC-SIGHT).
- Glaucoma and glaucoma suspect detection rates ranged from 18.6% to 26.7% across sites.
- Referred individuals were more likely to be Black, have lower education, be uninsured/Medicare, or have comorbidities like diabetes or hypertension.
Conclusions:
- The SIGHT Studies demonstrate the success of community-based telehealth screenings in identifying eye diseases.
- High detection and referral rates indicate the value of these programs for underserved, high-risk individuals.
- Telehealth eye care in trusted settings effectively connects patients to necessary in-office follow-up.
Keywords:
Community-based eye health screeningSIGHT Studieseye disease detectionreferral for in-office eye caresocial determinants of health
