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Gregory L. Cohen, M.D.

Gregory Cohen Sweeney Eye Doctor

Ophthalmologist

Comprehensive Ophthalmologist – Board Certified

Now accepting new patients in Richardson and Sunnyvale, TX

Dr. Gregory L. Cohen is a board-certified comprehensive ophthalmologist with more than 25 years of experience treating a wide range of vision and eye health conditions. He is now seeing patients at Sweeney Eye Associates’ Richardson and Sunnyvale locations, where he offers expert eye care with a focus on personalized, respectful treatment.

Dr. Cohen brings extensive surgical and clinical experience from leading ophthalmology practices in Arizona and Nevada, including advanced cataract care using laser-assisted techniques and premium intraocular lenses (IOLs). He is fluent in both English and Spanish, allowing him to connect with a broad patient community.

Patients in the Richardson, Sunnyvale, and surrounding Texas areas can now schedule comprehensive eye exams and medical consultations with Dr. Cohen. He is currently accepting new patients.


Dr. Cohen provides full-spectrum eye care, with a focus on early detection, disease management, and personalized treatment plans.

Specialities

Dr. Cohen provides thorough eye exams to detect vision changes, monitor overall eye health, and screen for age-related conditions like cataracts, glaucoma, and macular degeneration.

Dr. Cohen specializes in early detection of glaucoma and offers customized, ongoing treatment plans to manage eye pressure and prevent optic nerve damage.

Regular evaluations help detect and track age-related macular degeneration (AMD), allowing for early intervention to preserve central vision and support long-term eye health.

Using advanced diagnostics, Dr. Cohen identifies the root cause of dry eye and provides targeted treatment options to relieve discomfort and improve tear function.

Dr. Cohen provides specialized diabetic eye care, offering advanced diagnostics and treatment for conditions like diabetic retinopathy and diabetic macular edema. Using cutting-edge technology such as OCT and retinal imaging, he helps detect vision changes early and offers treatments like anti-VEGF injections and other in office treatments to protect your sight. Annual retinal exams are essential for anyone with diabetes—schedule yours today to safeguard your vision.

Eduacation and Training

Medical School:
New York Medical College – Valhalla, NY,
MD Degree 1991-1995

Internship:
Tucson Medical Center – Tucson, AZ
Internship, 1995-1996

Residency:
University of Arizona, Department of Ophthalmology – Tucson, AZ
Chief Resident, 1998–1999

Undergraduate:
Stanford University – Stanford, CA
Bachelor of Science, 1986-1990

Blogs from Sweeney Eye Associates:

Why So Many People Need Reading Glasses After 40 — And What Vision Correction Options Are Available
Comprehensive Eye | General Eye Care | Refractive Lens Exchange | Uncategorized

Why So Many People Need Reading Glasses After 40 — And What Vision Correction Options Are Available

If you’ve found yourself reaching for reading glasses more often after turning 40, you’re not alone. Nearly everyone experiences a natural vision change called presbyopia, and while it’s common, it can be frustrating. At Sweeney Eye Associates, we believe you deserve long-term solutions that match your lifestyle. That’s why we offer procedures like Refractive Lens…

5 Essential Eye Care Tips for Diabetic Patients
Diabetic Retinopathy | Retina | Uncategorized

5 Essential Eye Care Tips for Diabetic Patients

At Sweeney Eye Associates, Dr. Matthew Lippas specializes in retina care for patients in Richardson, Sunnyvale, Murphy, and Dallas. Managing diabetes brings unique challenges, especially during the summer, when routines and health habits may shift. For those with diabetes, maintaining eye health is critical, as diabetic retinopathy can lead to serious complications if left untreated….

What Does High Eye Pressure Really Mean?
General Eye Care | Glaucoma | Retina | Uncategorized

What Does High Eye Pressure Really Mean?

Understanding Glaucoma Risk, Diagnosis & When to Act If you’ve ever been told your eye pressure is high, you might have left your exam wondering: Do I have glaucoma? Should I be worried? At Sweeney Eye Associates, our board-certified glaucoma specialists know how confusing it can be to hear terms like “intraocular pressure,” “ocular hypertension,”…

Do I Need a Retina Specialist?
AMD | Retina

Do I Need a Retina Specialist?

Signs of Retinal Disease: What to Watch For and Where to Get Treatment Some vision problems go beyond routine eye exams. If you’re noticing sudden changes in your sight—like blurriness, shadows, floaters, or distortion—it may be time to see a retina specialist. At Sweeney Eye Associates, our retina team—including Dr. Sai Chavala and Dr. Matthew…


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