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Lynn Ehrhardt, MD

Lynn Ehrhardt, MD

Ophthalmologist

Ophthalmologist & Comprehensive Eye Care Specialist

Dr. Ehrhardt completed her medical degree at the University of Texas Medical Branch at Galveston and her ophthalmology residency at Parkland hospital which is located on the campus of the University of Texas Southwest Medical Center.

She received her certification from the American Board of Ophthalmology in 1990. Currently she practices at Sweeney Eye Associates, seeing patients at both our Richardson and Sunnyvale offices.

Dr. Ehrhardt has served as Principal Investigator on numerous trials including eye area safety studies, contact lens and cosmetics compatibility studies and human eye discomfort (installation tests). She has both the knowledge and experience to evaluate adverse events and determine causal relationship to the test product.

Sweeney Blog - Glaucoma 101
Comprehensive Eye | Glaucoma

Glaucoma 101: Warning Signs, FAQs, and How to Protect Your Vision

January is Glaucoma Awareness Month, which makes it a great time to spotlight Glaucoma, one of the leading causes of blindness worldwide. Often called the “silent thief of sight,” glaucoma can progress without noticeable symptoms, making early detection crucial. At Sweeney Eye Associates, our mission is to empower you with the knowledge and care needed…

woman smiling
Comprehensive Eye | Glaucoma | LASIK | Refractive Lens Exchange | Uncategorized | Vision Correction

Vision Correction for Diabetic Patients

Can You Get Vision Correction Surgery If You Have Diabetes? If you have diabetes and dream of freedom from glasses or contacts, you may wonder: “Is LASIK or Refractive Lens Exchange (RLE) an option for me? The good news? Vision correction surgery can often be an option for people with diabetes— but meeting specific health…

Care for your Eyes at Home
Cataracts | Comprehensive Eye | Oculoplastic and Cosmetic | Premium Lens Options | Refractive Lens Exchange | Retina | Uncategorized | Vision Correction

Care for your Eyes at Home

Top Tips for Healthy Eyes in 2025 from Sweeney Eye Associates At Sweeney Eye Associates, we believe your eyesight should be at the top of your New Year’s resolutions list! To help you kick off 2025 with clarity, our Eye Care Specialists have compiled their top tips for healthy eyes. These expert-approved recommendations will keep…

Your Guide to Treating Dry Eyes
Comprehensive Eye | Dry Eye | Uncategorized

Your Guide to Treating Dry Eyes

Dry eyes are more than just a minor inconvenience — they can interfere with your daily activities and cause significant discomfort. At Sweeney Eye Associates, we frequently see patients struggling with dry eye symptoms, particularly during the fall season when allergens and environmental factors in North Texas are at their peak. In this guide, I’ll…

How Refractive Lens Exchange Corrects Your Vision and Prevents Cataracts
Premium Lens Options | Refractive Lens Exchange | Vision Correction

How Refractive Lens Exchange Corrects Your Vision and Prevents Cataracts

Refractive Lens Exchange (RLE) is a revolutionary procedure that not only corrects your vision but also offers the unique advantage of preventing cataracts in the future. If you’re over 40 and considering options to improve your vision, RLE might be the perfect solution for you. In this blog, We’ll explore how RLE works, who can…

Sweeney Eye Associates Corneal Cross-Linking
Comprehensive Eye | Cornea | Uncategorized

Understanding Corneal Cross-Linking

Cross-Linking Insights from Lynn Ehrhardt, M.D. At Sweeney Eye Associates, we frequently encounter patients with keratoconus who have done their homework and come prepared with a solid understanding of their condition and treatment options. One of the most common inquiries we receive is about corneal cross-linking (CXL). While the basics of CXL are widely known,…

Hidden Sources of UV Rays and the Importance of UV Protection for Your Eyes
Comprehensive Eye

Hidden Sources of UV Rays and the Importance of UV Protection for Your Eyes

July is UV Safety Month, which makes it the perfect time learn how to protect your eyes from UV exposure. While the sun is the most obvious source of UV rays, hidden sources such as reflective surfaces, artificial sources, high altitudes, and overcast days also pose risks to your eye health. By understanding these hidden…

Your Guide to Choosing the Best Cataract Surgeon  
Cataracts | Comprehensive Eye | Expert Surgeon | Uncategorized

Your Guide to Choosing the Best Cataract Surgeon  

As leaders in ophthalmology, Sweeney Eye Associates understands the importance of finding a skilled and experienced surgeon for your cataract surgery. If you are looking for what to look for when choosing the best cataract surgeon, you have come to the right place. From educational background and surgical experience to technological advancements and patient-centered care, we are committed to…

Glasses vs. Vision correction
LASIK | Refractive Lens Exchange | Uncategorized

Through the Lens: Eyeglasses or Vision Correction – What’s Best for You?

Join Dr. Venincasa and Dr. Sweeney, Board-Certified Ophthalmologists with Sweeney Eye Associates, as they delve into the world of vision enhancement, empowering you to make informed decisions about your eye health and visual acuity. Understanding Age-Related Vision Changes As we age, our eyes undergo changes that can impact our ability to see clearly, especially up…

Sweeney Eye Associates
Comprehensive Eye | LASIK | Premium Lens Options | Refractive Lens Exchange | Uncategorized

Unlocking the Secrets to Lifelong Vision: A Guide to Healthy Eyes as You Age

May is Healthy Vision Month, a time to raise awareness about the importance of maintaining healthy eyesight throughout our lives. At Sweeney Eye Associates, we understand the significance of proactive eye care, especially as we age and face unique challenges to our vision. Let’s explore the key concerns for eye health at different stages of…

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