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Glaucoma is a progressive group of ocular (eye-related) diseases characterized by damage to the optic nerve (the cable connecting the eye to the brain). This damage is frequently associated with elevated intraocular pressure (IOP; the fluid pressure inside the eye). Because the condition typically presents without early symptoms, earning it the moniker "the silent thief of sight", permanent vision loss can occur before a patient is aware of a problem. At Hudson Ophthalmology, Dr. Kerline Marcelin provides specialized glaucoma care to residents of Westchester and Putnam Counties, including patients seeking a glaucoma specialist Westchester NY and a glaucoma specialist Putnam County NY. From our Yorktown Heights office, we serve patients in Yorktown, Peekskill, and communities just across the river from Cold Spring and Garrison, utilizing advanced diagnostic imaging and surgical interventions to preserve optic nerve health.

What Is Glaucoma and Why Is It Called the "Silent Thief of Sight"?

Glaucoma is primarily an asymptomatic (showing no symptoms) disease in its early stages. Unlike other eye conditions that cause immediate pain or blurred vision, glaucoma typically begins by eroding the peripheral (side) vision. Because the central vision remains clear until the advanced stages of the disease, many patients do not realize their visual field (the total area in which objects can be seen) is narrowing.

By the time a patient notices a "tunnel vision" effect, significant and irreversible damage to the optic nerve fibers has already occurred. This makes routine clinical screening essential for early detection and intervention. Without consistent monitoring, the disease can progress to total blindness. Hudson Ophthalmology emphasizes that once vision is lost to glaucoma, it cannot be restored; the focus of treatment is strictly on the preservation of remaining sight.

How Does Intraocular Pressure (IOP) Affect Your Vision?

The eye maintains its shape through a constant production and drainage of a clear fluid called aqueous humor (the fluid in the front part of the eye). In a healthy eye, the amount of fluid produced is balanced by the amount that drains out through the trabecular meshwork (the eye's natural drainage system).

What happens when the drainage system fails?

If the trabecular meshwork becomes clogged or inefficient, the aqueous humor cannot exit the eye at the required rate. This leads to a buildup of intraocular pressure. High IOP puts direct mechanical stress on the optic nerve and can also restrict blood flow to the nerve fibers. Over time, this pressure causes the nerve fibers to die. While some individuals can develop glaucoma with "normal" pressure readings, a condition known as normal-tension glaucoma, lowering the IOP remains the only clinically proven method to slow or stop the progression of the disease.

Who Is at Risk for Developing Glaucoma?

Clinical data indicates that certain populations are at a higher risk for developing glaucoma. At our Yorktown Heights office, we monitor high-risk patients with increased frequency to ensure early intervention. Risk factors include:

• Age: Individuals over the age of 60 are at significantly higher risk.
• Ethnicity: People of African, Hispanic, or Asian descent have a statistically higher predisposition to certain types of glaucoma.
• Family History: A primary relative (parent or sibling) with the disease increases your risk.
• Medical Conditions: Systemic diseases (diseases affecting the whole body) such as diabetes or high blood pressure can contribute to ocular health issues.
• Physical Anatomy: Thin corneas (the clear front surface of the eye) or a history of eye trauma can increase susceptibility.

What Diagnostic Tools Are Used at Hudson Ophthalmology?

Accurate glaucoma management requires more than a simple "air puff" pressure test. Dr. Marcelin utilizes state-of-the-art technology to map the health of the eye and track minute changes over time.

How does OCT imaging help in diagnosis?

Optical Coherence Tomography (OCT; a non-invasive imaging test that uses light waves to take cross-section pictures of the retina) is the gold standard for glaucoma monitoring. This technology allows us to measure the thickness of the retinal nerve fiber layer (RNFL). Because glaucoma thins this layer, OCT imaging can detect structural changes years before they manifest as vision loss on a standard eye chart.

Why is Visual Field Testing necessary?

While OCT measures the structure of the eye, Visual Field Testing (a test that maps a patient’s peripheral and central vision) measures the function of the eye. During this test, patients indicate when they see flashes of light in their peripheral vision. By comparing these results over several visits, we can determine if the disease is stable or if the current treatment plan requires adjustment.

What Advanced Treatment Options Are Available?

Traditional glaucoma management relied heavily on the lifetime use of daily eye drops. However, patient compliance (following medical advice consistently) is often a challenge due to side effects, cost, or forgetfulness. Hudson Ophthalmology offers advanced, "drop-free" or "drop-reduced" alternatives.

What is Selective Laser Trabeculoplasty (SLT)?

SLT is a laser procedure used to lower intraocular pressure in patients with open-angle glaucoma. The laser targets specific cells in the trabecular meshwork to stimulate a biological response that improves fluid drainage. It is a brief, in-office procedure that is often used as a first-line therapy to reduce the need for daily medications.

How do MIGS and iStent improve outcomes?

Minimally Invasive Glaucoma Surgery (MIGS) represents a significant advancement in surgical eye care. One of the most common MIGS devices we utilize is the iStent.

• iStent: The iStent is a microscopic titanium implant, the world’s smallest medical device, that is placed into the eye’s drainage channel. It creates a permanent bypass for the fluid to exit the eye, effectively lowering IOP.
• iStent Inject: This involves the placement of two multi-directional stents to further enhance drainage.
• iStent Infinite: This advanced version uses three microstents and is often recommended for patients who have not achieved target pressure with other treatments.

These procedures are typically performed during cataract surgery, allowing patients to address two vision-threatening conditions in a single surgical event.

Can Glaucoma Be Managed Without Daily Eye Drops?

For many patients, the answer is yes. Advanced interventional glaucoma (a proactive approach to glaucoma care using procedures rather than just meds) aims to reduce the "medication burden." By utilizing SLT or MIGS early in the disease process, Dr. Marcelin can often help patients achieve their target pressure without the redness, irritation, or expense associated with long-term eye drop use. Consistent follow-up and diagnostic imaging remain mandatory to ensure the "drop-free" status is maintaining optic nerve stability.

Why Choose Dr. Kerline Marcelin for Glaucoma Care?

Choosing a specialist with specific expertise in glaucoma is vital for the long-term protection of your sight. Dr. Kerline Marcelin is a board-certified ophthalmologist and a Castle Connolly Top Doctor with over 15 years of clinical experience. As a glaucoma specialist Westchester NY patients trust and a glaucoma specialist Putnam County NY patients rely on for advanced care, she focuses on evidence-based diagnosis, pressure control, and long-term optic nerve preservation. Her commitment to utilizing state-of-the-art diagnostic and surgical technology, including advanced treatments such as SLT and MIGS, ensures that patients in Westchester and Putnam Counties receive the highest standard of medical care.

Our practice is designed to provide a calm and welcoming environment, ensuring that the management of a chronic condition like glaucoma is as stress-free as possible. We prioritize patient education, ensuring you understand the clinical necessity of every test and treatment recommended. Hudson Ophthalmology serves patients in Yorktown, Peekskill, and nearby communities, including those just across the river from Cold Spring and Garrison seeking specialist glaucoma evaluation and treatment.

Is It Time to Schedule Your Evaluation?

Because glaucoma is often asymptomatic, waiting for vision changes to occur is a high-risk strategy that can lead to permanent disability. If you have a family history of the disease, are over the age of 40, or have not had a comprehensive eye exam in the last year, a specialist evaluation is clinically indicated.

We invite you to visit our services page to learn more about our comprehensive eye care or contact us directly to schedule an appointment at our Yorktown Heights office. Consistency in scheduling and compliance with diagnostic testing are your primary tools in the fight against the "silent thief of sight." Patients looking for a glaucoma specialist Westchester NY or a glaucoma specialist Putnam County NY can schedule with Dr. Marcelin for comprehensive evaluation and advanced treatment planning.

Hudson Ophthalmology
Expert Care. Advanced Technology. Compassionate Service.
Serving Westchester and Putnam Counties, including Yorktown, Peekskill, and nearby communities just across the river from Cold Spring and Garrison.