Your retina is the delicate tissue at the back of your eye that captures light and sends visual signals to the brain. When retinal conditions like macular degeneration, diabetic retinopathy, retinal detachment, or floaters threaten your sight, early diagnosis and expert treatment make all the difference. At Greenwich Ophthalmology Associates, our fellowship-trained retina specialist uses the most advanced diagnostic imaging and treatments available to protect and preserve your vision.
Jerry W. Tsong, M.D. is a board-certified, fellowship-trained Medical Retina Specialist at Greenwich Ophthalmology Associates. He graduated in the top 5% of his class at MIT, earned his medical degree from Harvard Medical School, and completed his fellowship at the world-renowned Doheny Eye Institute. Repeatedly named a "Top Doctor" by New York Magazine, Dr. Tsong brings exceptional expertise to patients with complex retinal conditions.
MIT & Harvard Medical School
Graduated top 5% of his class at MIT. Medical degree from Harvard Medical School.
Doheny Eye Institute Fellowship
Completed his retina fellowship at the world-renowned Doheny Eye Institute.
NY Magazine Top Doctor
Repeatedly named a "Top Doctor" by New York Magazine for retinal care.
Many retinal conditions develop without pain. If you notice any of the following symptoms, contact our retina specialist immediately for an evaluation.
OCT imaging scans your macula over 100 times in seconds at resolutions of 2 to 25 microns for early detection.
Fellowship-Trained Medical Retina Specialist
Dr. Tsong completed his fellowship at the renowned Doheny Eye Institute, specializing in retinal diseases including AMD.
Latest Treatment Options
Anti-VEGF injections (Lucentis, Eylea, Avastin), photodynamic therapy, and laser surgery to stabilize and improve vision.
Personalized Preventive Care
Customized monitoring plans with AREDS/AREDS2 vitamin guidance and periodic dilated exams every 4–6 months.
Frequently Asked Questions
Answers to common questions about retinal conditions, diagnosis, treatment, and what to expect at Greenwich Ophthalmology Associates.
What does a retina specialist treat?
A retina specialist is an ophthalmologist with additional fellowship training in diseases of the retina, macula, and vitreous. At Greenwich Ophthalmology Associates, Dr. Tsong treats conditions such as age-related macular degeneration (AMD), diabetic retinopathy, retinal tears and detachments, macular holes and puckers, retinal vein occlusions, uveitis, and vitreous hemorrhages. He also manages flashes, floaters, and other vitreoretinal conditions.
What is macular degeneration?
Age-related macular degeneration (AMD) is a progressive condition that affects the macula, the central part of the retina responsible for sharp, detailed vision. There are two forms: dry AMD, which involves gradual thinning of macular tissue, and wet AMD, where abnormal blood vessels grow beneath the retina and leak fluid. AMD is the leading cause of vision loss in adults over 50. While there is no cure, early detection and treatment can slow progression and preserve vision.
What are the symptoms of a retinal detachment?
A retinal detachment is a medical emergency. Warning signs include a sudden increase in floaters, flashes of light, a shadow or dark curtain spreading across your field of vision, and sudden blurred vision. If you experience any of these symptoms, contact our office immediately. A retinal detachment that is not treated promptly can lead to permanent vision loss within days.
How does diabetes affect the eyes?
Diabetes can damage the tiny blood vessels in the retina, a condition called diabetic retinopathy. Over time, these vessels may leak fluid or bleed, leading to swelling in the macula (diabetic macular edema) or abnormal new vessel growth (proliferative diabetic retinopathy). Both conditions can cause significant vision loss. Annual diabetic eye exams are essential for catching these changes early, when treatment is most effective.
What are anti-VEGF injections?
Anti-VEGF (vascular endothelial growth factor) injections are the standard of care for treating wet macular degeneration, diabetic macular edema, and retinal vein occlusions. The medication is injected directly into the eye to block the growth of abnormal blood vessels and reduce fluid leakage. The procedure is performed in the office, takes only a few minutes, and is well-tolerated with numbing drops. Most patients require a series of injections to maintain their vision.
Should I be worried about floaters?
Most floaters are harmless and caused by age-related changes in the vitreous gel inside the eye. However, a sudden increase in floaters, especially when accompanied by flashes of light or a shadow in your peripheral vision, may indicate a retinal tear or detachment. If you notice a sudden change in your floaters, contact us right away for an urgent evaluation. Early treatment of a retinal tear can often prevent a detachment.
What happens during a retina consultation?
During your retina consultation, your eyes will be dilated and Dr. Tsong will perform a thorough examination of the retina using specialized instruments. Diagnostic imaging such as OCT (optical coherence tomography), fundus photography, or fluorescein angiography may be performed to get detailed views of the retinal layers and blood vessels. Plan for 1 to 2 hours, and bring sunglasses since your pupils will remain dilated for several hours afterward.
Can macular degeneration be prevented?
While there is no guaranteed way to prevent AMD, you can significantly reduce your risk. Key steps include quitting smoking (the single most important modifiable risk factor), eating a diet rich in leafy greens and fish, maintaining a healthy weight, protecting your eyes from UV light, and taking AREDS2 vitamins if recommended by your doctor. Regular eye exams and home monitoring with an Amsler grid can help catch changes early.
What is a vitrectomy?
A vitrectomy (pars plana vitrectomy) is a surgical procedure in which the vitreous gel is removed from inside the eye. It is used to treat retinal detachments, macular holes, vitreous hemorrhages, epiretinal membranes, and other conditions. The vitreous is replaced with a saline solution, gas bubble, or silicone oil to help the retina heal. Recovery time depends on the condition treated and whether a gas bubble is used, which may require face-down positioning for a period of time.
Does insurance cover retinal treatments?
Yes. Retinal conditions are medical conditions, so most health insurance plans, including Medicare, cover retina evaluations, diagnostic imaging such as OCT and fluorescein angiography, intravitreal injections, laser treatments, and retinal surgery. Our team will review your insurance benefits and discuss any out-of-pocket costs with you before treatment begins.
Retina Resources
In-depth guides, treatment comparisons, and answers to common questions about retinal care.
Having years of injections where I lived in upstate NY, I was discouraged that every eye visit would be awful. Then I moved and found Dr. Tsong. I am delighted with his care and painless treatment. He is encouraging and kind and the BEST doctor I have ever seen. If you have MD, you need Dr. Tsong.
Lois DiStefano
This is modern medicine the way it should be practiced and delivered. highest quality physicians and an office run like a high end hotel. almost no waiting. had my cataracts repaired by them and a retinal tear fixed. friends' experiences have also been excellent.
Doug
Dr. Jerry Tsong is an excellent, skilled, and caring physician. His exams are professional, thorough, and clear. GOA staff are polite and attentive. I highly recommend them.
Alex Troy
I had a wonderful experience with Dr. Tsong at Greenwich Ophthalmology. Very clean facility and helpful staff too. Dr. Tsong saw me right away and took the time to answer all of my questions. Will be recommending to everyone I know!
Tyler Cappello
What our Patients say
4.8
Reviews
(3,408)
Having years of injections where I lived in upstate NY, I was discouraged that every eye visit would be awful. Then I moved and found Dr. Tsong. I am delighted with his care and painless treatment. He is encouraging and kind and the BEST doctor I have ever seen. If you have MD, you need Dr. Tsong.
Lois DiStefano
This is modern medicine the way it should be practiced and delivered. highest quality physicians and an office run like a high end hotel. almost no waiting. had my cataracts repaired by them and a retinal tear fixed. friends' experiences have also been excellent.
Doug
Dr. Jerry Tsong is an excellent, skilled, and caring physician. His exams are professional, thorough, and clear. GOA staff are polite and attentive. I highly recommend them.
Alex Troy
I had a wonderful experience with Dr. Tsong at Greenwich Ophthalmology. Very clean facility and helpful staff too. Dr. Tsong saw me right away and took the time to answer all of my questions. Will be recommending to everyone I know!
Tyler Cappello
Having years of injections where I lived in upstate NY, I was discouraged that every eye visit would be awful. Then I moved and found Dr. Tsong. I am delighted with his care and painless treatment. He is encouraging and kind and the BEST doctor I have ever seen. If you have MD, you need Dr. Tsong.
Lois DiStefano
This is modern medicine the way it should be practiced and delivered. highest quality physicians and an office run like a high end hotel. almost no waiting. had my cataracts repaired by them and a retinal tear fixed. friends' experiences have also been excellent.
Doug
Dr. Jerry Tsong is an excellent, skilled, and caring physician. His exams are professional, thorough, and clear. GOA staff are polite and attentive. I highly recommend them.
Alex Troy
I had a wonderful experience with Dr. Tsong at Greenwich Ophthalmology. Very clean facility and helpful staff too. Dr. Tsong saw me right away and took the time to answer all of my questions. Will be recommending to everyone I know!
Tyler Cappello
They understood that young children and older patients will need a little extra time and patience during their exams. I can’t thank them enough for taking care of my mom’s eyes. I will definitely recommend anyone to visit this practice.
L.R, March 2025
Everyone is exceptional, friendly, professional, knowledgeable, and caring.
F.M, January 2025
I had a fabulous experience here with entire staff, Dr. Feng and the optician. I’m super happy I found this practice and I recommend anyone to give it a try.
S.T, March 2024
We Value Our Patients Feedback
Reviews
4.9(227)
They understood that young children and older patients will need a little extra time and patience during their exams. I can’t thank them enough for taking care of my mom’s eyes. I will definitely recommend anyone to visit this practice.
L.R, March 2025
Everyone is exceptional, friendly, professional, knowledgeable, and caring.
F.M, January 2025
I had a fabulous experience here with entire staff, Dr. Feng and the optician. I’m super happy I found this practice and I recommend anyone to give it a try.