My Locations
About Me
I am a Duke vitreoretinal surgeon and Moorfields uveitis trained ophthalmologist, specializing in patients with complex medical and surgical problems of the back of the eye, known as the retina, as well as patients with inflammation in the eye or uveitis. I use the latest diagnostic and therapeutic methods along with a collaborative team effort with colleagues across Duke Eye Center and the Duke Rheumatology and Immunology division to develop the optimum treatment plans for patients with uveitis. Outside of work, I enjoy spending time with the family, traveling, watching sports, and landscape photography.
- Associate Professor of Ophthalmology, Ophthalmology, Vitreoretinal Diseases & Surgery 2022
Call for an Appointment
Areas of Expertise
- Macular Holes
- Retinal Detachment
- Uveitis
Ratings and Reviews
The ratings and reviews are based on patient responses to the overall provider rating question from the survey. The question reads: “Using any number from 0 to 10, where 0 is the worst provider possible and 10 is the best provider possible, what number would you use to rate this provider?” Responses are converted to a 5-point rating system and applied consistently to all providers. Learn more about our survey process. Patients who see some types of providers receive a different version of the patient satisfaction survey. Those results are not available on DukeHealth.org.
Training and Education
In the News
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Clinical Focus and Research
I am actively involved in clinical trials of new treatments in and new imaging technologies for improved diagnosis and monitoring of retinal diseases and uveitis. I have a special interest in advanced ocular imaging for both retina and uveitis.
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PVT-2201-303: CLARITY Study for Non-Infectious UveitisIRB# PRO00115979 , NCT# NCT06431373
- A Phase IIb, Randomized, Assessor-Masked, Multicenter Clinical Trial To Assess The Safety And Efficacy Of Subretinal Implantation Of The CPCB-RPE1 Implant In Subjects With Advanced, Dry Age-Related Macular Degeneration (Geographic Atrophy)-PATCH AMD awarded by Clinical Trials Resource Group, LLC 2024 - 2031
- Fekrat, S., A. S. Thomas, and D. S. Grewal. Curbside Consultation in Retina Book Curbside Consultation in Retina: 49 Clinical Questions, 2024. https://doi.org/10.1201/9781003523703.
- Pichi, Francesco, Elisabetta Miserocchi, Dilraj S. Grewal, Sumit Sharma, Antoine P. Brézin, Bahram Bodaghi, Aniruddha Agarwal, et al. “Evidence and Consensus-based Imaging Guidelines in Birdshot Chorioretinopathy: Multimodal Imaging in Uveitis (MUV) Taskforce Report 8.” Am J Ophthalmol 278 (October 2025): 271–81. https://doi.org/10.1016/j.ajo.2025.06.029.
- Karthik, Naveen, Sejal D. Patel, Grant A. Justin, Sandra S. Stinnett, Stephanie J. Chiu, Nathan T. Tagg, Rupesh Agrawal, Dilraj S. Grewal, and Sharon Fekrat. “Retinal Layer Thickness and Volume Measurements in Traumatic Brain Injury.” J Vitreoretin Dis, September 3, 2025, 24741264251367104. https://doi.org/10.1177/24741264251367104.
- Kasetty, Venkatkrish M., and Dilraj S. Grewal. “Considerations and surgical approach to vitreous, retinal, and chorioretinal biopsy.” Curr Opin Ophthalmol, August 25, 2025. https://doi.org/10.1097/ICU.0000000000001163.
- Ali, Mohsin H., Wenlan Zhang, and Dilraj S. Grewal. “Infectious Intermediate, Posterior, and Panuveitis.” In Current Practices in Ophthalmology, 101–42. Springer Singapore, 2020. https://doi.org/10.1007/978-981-15-0331-3_4.
- Grewal, D. S. “Choroidal granulomas: Tuberculosis and sarcoidosis.” In Handbook of Pediatric Retinal Oct and the Eye Brain Connection, 174–77, 2019. https://doi.org/10.1016/B978-0-323-60984-5.00036-6.
- Grewal, D. S. “White dot syndromes.” In Handbook of Pediatric Retinal Oct and the Eye Brain Connection, 168–73, 2019. https://doi.org/10.1016/B978-0-323-60984-5.00035-4.
- Hemesath, Angela, Anita Kundu, Suzanna Joseph, Ariana Allen, Justin Ma, Cason Robbins, Dilraj Singh Grewal, and Sharon Fekrat. “Longitudinal Retinal Findings in Individuals with Mild Cognitive Impairment over a Two Year Period.” In INVESTIGATIVE OPHTHALMOLOGY & VISUAL SCIENCE, Vol. 64, 2023.
- Nipp, Grace E., Sandra S. Stinnett, Stephanie J. Chiu, Gui-Shuang Ying, Ebenezer Daniel, Maureen G. Maguire, Dilraj Singh Grewal, and Glenn J. Jaffe. “Multimodal Identification and Quantification of Subretinal Fibrosis in Eyes with Neovascular AMD in CATT.” In INVESTIGATIVE OPHTHALMOLOGY & VISUAL SCIENCE, Vol. 64, 2023.
- Akrobetu, Dennis, Cason Robbins, Michael Quist, Sandra Stinnett, Burton Scott, Kim G. Johnson, Andy Liu, et al. “Intrasession Repeatability of Macular Optical Coherence Tomography Angiography Parameters in Neurodegenerative Disease.” In INVESTIGATIVE OPHTHALMOLOGY & VISUAL SCIENCE, Vol. 63, 2022.
Insurance Accepted
Duke Health contracts with most major health insurance carriers and transplant networks, including the ones listed below.
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Aetna
- Aetna Choice POS, Aetna Choice POS II
- Aetna Elect Choice HMO, Aetna Open Access Elect Choice
- Aetna Health Network Only, Aetna Health Network Option
- Aetna HMO
- Aetna Limited Benefit Insurance PPO
- Aetna Managed Choice POS
- Aetna Medicare Assure Plan (HMO D-SNP)
- Aetna Medicare Eagle Plan (PPO)
- Aetna Medicare Essential Plan (PPO)
- Aetna Medicare Value Plan (HMO)
- Aetna Open Access HMO, Open Access Aetna Select, Aetna Open Access Managed Choice
- Aetna Open Choice PPO
- Aetna PCP Coordinated POS Plan
- Aetna Quality Point of Service (QPOS)
- Aetna Select HMO
- Aetna Traditional Choice
- Aetna Voluntary Indemnity Group Plan
- Aetna Whole Health – Duke WakeMed WKCC
- Aetna/CVS Health
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Ambetter
- Ambetter of North Carolina
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Blue Cross Blue Shield of NC
- Blue Advantage
- Blue Medicare (HMO, PPO)*
- Blue Options (123, PPO, HSA)
- Blue Select
- NC State Employees Health Plan
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*Duke HomeCare and Hospice does not participate in the plan.
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Cigna
- Cigna Behavioral Health (*Limited eligibility)
- Cigna Choice Plus
- Cigna Connect Individual Family Plan
- Cigna Open Access
- Cigna Open Access Plus
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*Please call Cigna Behavioral Heath to see if the provider is participating in your plan.
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Duke Group Plans
- Duke Basic
- Duke Select
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Experience Health
- Experience Health Medicare Advantage (HMO) Plan
- Gateway Health Alliance
- Healthgram
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Humana
- Humana Choice (PPO)
- Humana Choice - Medicare Advantage (PPO)
- Humana ChoiceCare - Medicare Advantage (PPO)
- Humana Gold Choice - Medicare Advantage (PFFS)
- Humana Gold Plus - Medicare Advantage (HMO)
- Humana Medicare Advantage Group Plan - NC State Retirees
- MedCost
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Medicare
- First Medicare Direct
- Medicare Part A
- Medicare Part B
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NC Medicaid
- AmeriHealth Caritas North Carolina
- Carolina Complete Health
- NC Medicaid Direct
- UHC Community Plan
- WellCare of North Carolina
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TRICARE
- TRICARE Prime
- TRICARE Prime Remote
- TRICARE Select
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United Healthcare
- AARP Medicare Advantage Plan 2 (HMO-POS)
- AARP Medicare Complete (HMO, PPO)*
- AARP Medicare Complete Essential (HMO)*
- All Savers Alternate Funding
- All Savers Fully Insured
- United Healthcare (HMO, PPO, POS)**
- United Healthcare Charter/Charter Balance/Charter Plus
- United Healthcare Choice/Choice Plus
- United Healthcare Core/Core Essential
- United Healthcare Navigate/Navigate Plus/Navigate Balanced
- United Healthcare Option PPO
- United Healthcare Passport Connect Choice/Choice Plus
- United Healthcare Passport Connect Options PPO
- United Healthcare Select/Select Plus
- United Healthcare Shared Services - Harvard Pilgrim/UHC Options PPO Network
- United Medical Resources (UMR)
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*Duke HomeCare and Hospice and mental health providers do not participate with the plan.
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**Duke Health does not participate in UHC plans on the Health Insurance Marketplace.
Before scheduling your appointment, we strongly recommend you contact your insurance company to verify that the Duke Health location or provider you plan to visit is included in your network. Your insurance company will also be able to inform you of any co-payments, co–insurances, or deductibles that will be your responsibility. If you proceed in scheduling an appointment and your health insurance benefits do not participate with Duke, your out of pocket liability may be higher. We will contact you regarding your coverage and patient liability. If you are uninsured, learn more about our financial assistance policy.
External Relationships
- ANI Pharmaceuticals
- Apellis Pharmaceuticals
- Carl Zeiss Meditec
- DORC
- EyePoint
- Genentech Roche
- Iveric Bio/Astellas
- Priovant
- Regeneron Pharmaceuticals