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Cynthia Ann Toth

Joseph A.C. Wadsworth Distinguished Professor of Ophthalmology
Ophthalmology, Vitreoretinal Diseases & Surgery
Duke Eye Center, DUMC 3802, Durham, NC 27710
Duke Eye Center, Hudson Bldg., 2351 Erwin Road, Durham, NC 27705

Overview


RESEARCH INTERESTS

Dr. Toth specializes in the evaluation and surgical treatment of vitreoretinal diseases in infants, children and adults, and in novel research resulting in the clinical application of optical coherence tomography (OCT) imaging in surgery and at the bedside. Her clinical interests and skills include the surgical treatment of macular diseases (such as, macular hole, epiretinal membrane and vitreomacular traction), retinal detachment, proliferative diabetic retinopathy, proliferative vitreoretinopathy (PVR), and retinopathy of prematurity (ROP). 

Dr. Toth is a world expert in retinal imaging with optical coherence tomography (OCT) and pioneered both the first use of a research hand-held spectral domain OCT system for infant examination and the first intraoperative OCT-guided ophthalmic surgical system. For infants and children, Dr. Toth's multidisciplinary team has demonstrated novel eye findings that are visible only with OCT imaging and that are often associated with brain disease or challenges of brain development. In surgery, Dr. Toth performed the world's first intraoperative OCT imaging and the first swept-source OCT imaging with heads-up display during retinal surgery. With colleagues in the Duke Eye Center and in Biomedical Engineering, she perfecting such techniques. She has been repeatedly honored among the Best Doctors in America.

Dr. Toth is also professor in the Department of Biomedical Engineering in the Pratt School of Engineering. Her primary research interests are in translational research and early-application clinical trials with a focus on novel retinal imaging with spectral domain and swept source optical coherence tomography (SD and SSOCT). Dr. Toth's Laboratory, the Duke Advanced Research in Spectral Domain/Swept Source OCT Imaging (DARSI) Laboratory centers on improving early diagnostic methods, imaging biomarkers and therapies for both age-related macular degeneration (AMD) and for retinal diseases in children. Sina Farsiu, PhD, has collaborated to provide advanced image processing for OCT with in the DARSI Laboratory. In collaboration with Joseph Izatt, PhD  in Biomedical Engineering, the DARSI team is currently applying OCT to the diagnosis and care of retinal diseases and especially in microsurgery in adults and in children in several studies including NIH funded investigations. 

Dr. Toth was also co-founder and has been the Director of Grading for OCT for the Duke Reading Center and has designed and directed OCT analysis for numerous multicenter clinical trials including the Comparisons of AMD Treatment Trials (CATT). The Duke Reading Center provides support in training, data acquisition, and grading for multicenter clinical trials utilizing optical coherence tomography as an outcome measure.

Dr. Toth chaired the multicenter Age Related Eye Disease Study 2 Ancillary SDOCT (A2ASDOCT) Study and has participated as site PI in the AREDS2. She also led studies of macular translocation surgery (MT360) for patients with severe AMD, along with co-investigator Dr. Sharon Freedman. Macular translocation surgery was a salvage treatment for AMD patients who lost vision due to neovascular AMD, prior to the current era of anti-Vascular Endothelial Growth Factor treatments. The surgery resulted in an auto-transplant of the retina, isolating the retina from the underlying choroidal and retinal pigment epithelial pathology. Imaging and retinal function data from those studies have contributed to teasing out events in the macula related to vision loss.

Learn More about the Toth-DARSI Lab

Current Duke Appointments & Affiliations


Joseph A.C. Wadsworth Distinguished Professor of Ophthalmology · 2015 - Present Ophthalmology, Vitreoretinal Diseases & Surgery, Ophthalmology
Professor of Ophthalmology · 2005 - Present Ophthalmology, Vitreoretinal Diseases & Surgery, Ophthalmology
Professor of Biomedical Engineering · 2015 - Present Biomedical Engineering, Pratt School of Engineering

Recent News Items


Published June 24, 2026
A Window to the Brain
Published October 14, 2022
Cynthia Toth's 25-Years of Revolutionizing Eye Care and Surgery
Published August 10, 2016
New handheld device could allow for easy retina imaging in children

View All News Items

Recent Scholarly Works


Very Preterm Infant Retinal Microanatomy at 36 Weeks' Postmenstrual Age and 2-Year Neurodevelopment.

Journal article JAMA Ophthalmol · June 4, 2026 IMPORTANCE: If noninvasive optical coherence tomography (OCT) retinal imaging could predict 2-year neurodevelopment of very preterm (VPT; <32 weeks' gestational age) infants in neonatal intensive care, it might help to guide management. OBJECTIVE: To evalu ... Full text Link to item Cite

Preterm Infant Stress During Noncontact Handheld Optical Coherence Tomography and Contact Fundus Photography.

Journal article JAMA Ophthalmol · May 28, 2026 IMPORTANCE: Limiting the stress of retinopathy of prematurity (ROP) assessments may be beneficial for preterm infants. OBJECTIVE: To compare stress in preterm infants from noncontact optical coherence tomography (OCT) vs contact fundus photography during R ... Full text Link to item Cite

Utility of handheld optical coherence tomography imaging in the surgical management of preterm infants with advanced retinopathy of prematurity.

Journal article Graefes Arch Clin Exp Ophthalmol · April 9, 2026 PURPOSE: The advent of handheld optical coherence tomography (OCT) as a research instrument has significantly advanced our understanding of retinopathy of prematurity (ROP). We aim to determine if OCT imaging can aid in surgical decision-making for preterm ... Full text Link to item Cite
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Recent Grants


Duke Ophthalmology Mentored Physician Scientist Program

Inst. Training Prgm or CMEPrincipal Investigator · Awarded by National Institutes of Health · 2026 - 2031

2/3 CTSA K12 Program at Duke University

ResearchMentor · Awarded by National Institutes of Health · 2025 - 2030

Analyzing Retinal Microanatomy in Retinopathy of Prematurity to Improve Care

ResearchPrincipal Investigator · Awarded by National Institutes of Health · 2026 - 2030

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Education


Drexel University · 1983 M.D.