Diabetic Eye Exam Brooklyn: What You Need to Know Before Diabetes Affects Your Vision
If you have diabetes, an annual dilated eye exam isn't optional — it's one of the most important things you can do to protect your sight. Diabetic eye disease often has no warning signs in its early stages, which means by the time you notice something's wrong, the damage may already be significant.
That's why at Nostrand Optical on Nostrand Ave in Crown Heights, Dr. Alexander Shlivko, OD makes diabetic eye care a priority for patients throughout Brooklyn. Whether you've been managing diabetes for years or were recently diagnosed, a thorough eye exam is a critical part of your care routine.
If you're overdue for a diabetic eye exam, Dr. Shlivko is accepting new patients at Nostrand Optical in Crown Heights. Book an appointment today — we accept Medicaid, Medicare, and most major plans.
Key Takeaways
- Diabetic retinopathy is the leading cause of vision loss in working-age adults — and it often has no symptoms until it's advanced.
- Annual dilated eye exams are recommended for all patients with Type 1 or Type 2 diabetes, starting at diagnosis (Type 2) or within five years of diagnosis (Type 1).
- Early detection matters. Treatment is far more effective when damage is caught early, before vision loss occurs.
- Dr. Shlivko performs diabetic eye exams at Nostrand Optical, 1018C Nostrand Ave, Crown Heights, Brooklyn.
- We accept Medicaid and Medicare, both of which typically cover diabetic eye exams. Verify your coverage here.
Why Diabetes and Your Eyes Are Directly Connected
Diabetes affects blood vessels throughout the body — and your eyes are full of tiny, delicate blood vessels that are especially vulnerable to damage from high blood sugar. Over time, elevated glucose levels can weaken those vessels, cause them to leak fluid, or trigger the growth of abnormal new vessels that can scar the retina.
The result is a group of conditions collectively called diabetic eye disease, with diabetic retinopathy being the most common. According to the American Academy of Ophthalmology, diabetic retinopathy affects more than seven million Americans, and it's the leading cause of vision loss among adults ages 20 to 74.
Other eye conditions linked to diabetes include:
- Diabetic macular edema (DME) — swelling in the macula (the center of your retina) that can blur your central vision
- Glaucoma — people with diabetes have roughly double the risk of developing glaucoma compared to those without it
- Cataracts — diabetes can accelerate cataract formation, sometimes decades earlier than average
The hard reality is that all of these conditions can progress silently. You may not notice blurring, floaters, or vision changes until the disease is at an advanced stage. That's not just a medical fact — it's a strong reason to stay current on your exams, even when your eyes feel perfectly fine.
What Happens During a Diabetic Eye Exam
A diabetic eye exam is more involved than a standard vision check. It's not just about reading the eye chart or updating your prescription — it's a detailed look at the health of the structures inside your eye, specifically the retina and optic nerve.
Here's what Dr. Shlivko will typically do during your exam:
Visual Acuity Testing
This is the standard chart test that checks how clearly you see at various distances. Diabetes can affect visual clarity, so this is a useful baseline.
Dilated Eye Exam
This is the most important part of a diabetic eye exam. Dr. Shlivko will use dilating drops to widen your pupils, which allows a clear view of your retina, macula, and optic nerve. This is the only reliable way to examine the back of the eye for early signs of retinopathy or macular edema.
Dilation takes about 20 to 30 minutes to take full effect, and your vision may stay blurry and light-sensitive for a few hours afterward. Plan to have someone drive you home, or bring sunglasses for the trip back.
Eye Pressure Measurement (Tonometry)
Because diabetes increases your glaucoma risk, Dr. Shlivko will check your intraocular pressure as part of the exam. You can learn more about what that test involves in our post on glaucoma screening in Brooklyn.
Slit-Lamp Examination
This allows a close look at the lens (for cataracts), cornea, iris, and other front-of-eye structures. If you're showing early signs of cataract formation, Dr. Shlivko can discuss what to watch for and when a referral may be appropriate. See our post on cataract screening in Brooklyn for more on that.
The full exam typically takes about 45 minutes to an hour. If Dr. Shlivko sees anything that requires follow-up with a retinal specialist or ophthalmologist, he'll give you a referral and explain exactly what was found and why.
How Often Should You Get a Diabetic Eye Exam?
The American Optometric Association recommends:
- Type 1 diabetes: First dilated eye exam within five years of diagnosis, then annually
- Type 2 diabetes: Dilated eye exam at the time of diagnosis, then annually
- During pregnancy with diabetes: An exam early in the first trimester, with follow-up as recommended
If Dr. Shlivko finds signs of early retinopathy or other changes, he may recommend exams more frequently than once a year — every six months or even quarterly, depending on what's happening. Annual exams are the floor, not the ceiling.
If you're not sure when you last had a dilated exam, that's a sign you're overdue. Schedule your exam at Nostrand Optical — we'll make sure you leave with a clear picture of where things stand.
Mini-Story: Marcus Catches a Problem He Didn't Know He Had
Marcus, 54, came into Nostrand Optical from his apartment near Eastern Parkway. He'd been managing Type 2 diabetes for about eight years and had been seeing his primary care doctor regularly, but hadn't had a dilated eye exam in over two years. His vision felt fine — no blurring, no floaters, nothing unusual.
During his exam, Dr. Shlivko found early signs of non-proliferative diabetic retinopathy in both eyes. Nothing requiring immediate intervention, but significant enough to warrant a referral to a retinal specialist and a return visit in six months.
Marcus told us afterward that he hadn't realized a diabetic eye exam was different from his regular glasses check. He'd been getting prescriptions updated but never having his eyes dilated. Catching the retinopathy early gave him and his care team time to tighten up his blood sugar management before any vision loss occurred.
The Link Between Blood Sugar Control and Eye Health
Eye exams matter, but they work best alongside good overall diabetes management. Research published by the National Institutes of Health found that keeping blood glucose, blood pressure, and cholesterol in target ranges can significantly slow the progression of diabetic retinopathy.
That's not something Dr. Shlivko manages — that's your endocrinologist or primary care provider's territory. But what he can do is give you accurate, current information about what's happening inside your eyes, so your whole care team has the full picture.
A few things worth knowing:
- Even well-controlled diabetes can cause retinopathy. Duration of the disease matters as much as control. The longer you've had diabetes, the higher your cumulative risk.
- High blood pressure compounds the risk. Hypertension and diabetes together are harder on retinal blood vessels than either condition alone.
- Rapid changes in blood sugar can temporarily affect your vision. If you've recently changed your diabetes medication and your prescription seems different, it's worth mentioning at your next eye exam.
Mini-Story: Delores, Managing Diabetes at 67
Delores has been a patient at Nostrand Optical for several years. She's 67, lives in Crown Heights, and has had Type 2 diabetes since her early 50s. She comes in every year without fail, not because she has symptoms, but because her daughter insisted after reading about diabetic eye disease online.
For four consecutive annual visits, her dilated exams came back clean. Then last year, Dr. Shlivko identified very early diabetic macular changes. Because she'd been coming in consistently, that finding was caught at the earliest possible stage. She was referred to a retinal specialist, who confirmed the findings and started monitoring her closely.
Delores told us that she initially thought the yearly exams were overkill. Now she tells everyone at her church in Crown Heights to make sure they're getting their eyes checked if they have diabetes. "You don't feel it coming," she said. "That's the problem."
Does Insurance Cover Diabetic Eye Exams?
Yes — in most cases, diabetic eye exams are covered as a medical benefit, not just a vision benefit. That's an important distinction.
Medicaid typically covers medically necessary eye exams, including dilated exams for diabetic patients. Medicare Part B covers one dilated eye exam per year for people with diabetes, billed as a medical service rather than a routine vision exam.
If you have a commercial plan through UnitedHealthcare, Anthem, Health First, Fidelis, or a union plan, diabetic eye exams are generally covered under your medical benefits. Check what insurance we accept, or just call us and we'll verify your coverage before your appointment.
One thing to keep in mind: even if your plan has a separate vision benefit for glasses and contact lenses, a diabetic eye exam is typically billed differently and covered under medical benefits. It's worth a quick call to your insurer to confirm, and we're happy to help you sort it out.
Warning Signs That Shouldn't Wait for Your Annual Exam
Annual exams are essential, but some symptoms mean you should call sooner rather than later. Contact Nostrand Optical or seek care promptly if you experience:
- Sudden blurry or distorted vision — especially in the center of your visual field
- Floaters or spots that appear suddenly or increase in number
- Dark spots or shadows in your vision
- Difficulty seeing at night or increased sensitivity to glare
- Double vision or loss of color intensity
These symptoms may indicate that retinopathy or macular edema has progressed, or that something else is happening that needs evaluation. They're not reasons to panic, but they are reasons to get seen quickly. Dr. Shlivko will evaluate what's going on and connect you to the right specialist if needed. You can learn more about the eye care services we offer at Nostrand Optical.
Mini-Story: Kevin Gets Back on Track
Kevin, 41, hadn't seen an eye doctor in about five years. He came in to Nostrand Optical from Bed-Stuy after his primary care doctor flagged elevated blood sugar and gave him a new Type 2 diabetes diagnosis. His doctor told him to get a dilated eye exam as soon as possible.
Kevin was nervous — he assumed bad news was coming. His exam came back without signs of retinopathy, which was genuinely good news given how recently his diagnosis had come through. Dr. Shlivko explained what to watch for, set him up on an annual exam schedule, and gave him a clear sense of what his baseline looked like.
Kevin said leaving the office feeling informed rather than scared made a real difference. He's now on the annual exam calendar and knows exactly what questions to bring to his next visit.
What to Bring to Your Diabetic Eye Exam at Nostrand Optical
To make your visit as efficient as possible, bring:
- Your insurance card (Medicaid, Medicare, or commercial plan)
- A list of current medications, including any diabetes medications
- Your most recent A1C result if you have it — it helps Dr. Shlivko contextualize your eye health findings
- Sunglasses for after your dilation, since your eyes will be light-sensitive
- A ride home if possible, since driving right after dilation can be difficult
If you wear glasses or contact lenses, bring those too. Dr. Shlivko may update your prescription at the same visit if your vision has changed.
Book Your Diabetic Eye Exam in Crown Heights
Diabetes is manageable. Vision loss from diabetic eye disease, in many cases, is preventable — but only if changes are caught early. That's what the annual dilated exam is for.
At Nostrand Optical, 1018C Nostrand Ave in Crown Heights, Dr. Alexander Shlivko, OD provides thorough diabetic eye exams for patients from across Brooklyn, including Crown Heights, Prospect Heights, Flatbush, Bed-Stuy, and Lefferts Gardens. We accept Medicaid, Medicare, and most major insurance plans. If you're not sure about your coverage, check our insurance page or call us before your visit.
Don't wait until you notice a problem. Book your diabetic eye exam at Nostrand Optical — and give yourself the best shot at keeping your vision for the long term.
Related reading: Eye Exam in Crown Heights, Brooklyn | Glaucoma Screening in Brooklyn | Cataract Screening Brooklyn