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Department Ophthalmology
Primary Location Elyria Family Health Center
Type of Doctor Both Adults and Children & Adolescents
Languages English
Surgeon No
Locations Specialties & Treatments

Treatment & Services

  • Adult Contact Lenses
  • Contact Lenses
  • Diabetic Eye Examinations
  • Eye Examinations
  • Eyeglasses
  • Glaucoma Evaluations
  • Optometry
  • Post Surgical Exams
View all 8 Treatment & Services +

Specialty in Diseases & Conditions

  • 20/20 Vision
  • Aging and Your Eyes
  • Allergic Conjunctivitis
  • Astigmatism
  • Blepharitis
  • Diabetic Eye
  • Dry Eyes
  • Emergency Care
  • Eye Infections
  • Eye Inflammations
  • Farsightedness
  • Fast Facts: Conjunctivitis
  • Hypertension - High Blood Pressure
  • Myopia (Nearsightedness)
  • Ocular Allergies
  • Ocular Health
  • Ocular Injuries
  • Pink Eye
  • Red Eye
  • Refractive Errors
View all 20 Specialties +


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Education & Professional Highlights

Education & Professional Highlights


Education & Fellowships

Medical Education - The Ohio State University College of Optometry
Columbus, OH USA

Undergraduate - Bowling Green State University
Bowling Green, OH USA

Specialty Interests

General optometry

Research & Publications

Research & Publications

See publications for Gregory Kosunick, OD.

(Disclaimer: This search is powered by PubMed, a service of the U.S. National Library of Medicine. PubMed is a third-party website with no affiliation with Cleveland Clinic.)

Industry Relationships

Industry Relationships

Cleveland Clinic physicians and scientists may collaborate with the pharmaceutical or medical device industries to help develop medical breakthroughs or provide medical expertise or education. Cleveland Clinic strives to make scientific advances that will benefit patient care and support outside relationships that promise public benefit. In order for the discoveries of Cleveland Clinic physicians' and scientists' laboratories and investigations to benefit the public, these discoveries must be commercialized in partnership with industry. As experts in their fields, Cleveland Clinic physicians and scientists are often sought after by industry to consult, provide expertise and education.

To assure professional and commercial integrity in such matters, Cleveland Clinic maintains a program that reviews these collaborations and, when appropriate, puts measures in place to minimize bias that may result from ties to industry. Cleveland Clinic publicly discloses the names of companies when (i) its physicians/scientists receive $5,000 or more per year (or, in rare cases, equity or stock options) for speaking and consulting, (ii) its physicians/scientists serve as a fiduciary, (iii) its physicians/scientists receive or have the right to receive royalties or (iv) its physicians/ scientists hold any equity interest for the physician's/scientist's role as inventor, discoverer, developer, founder or consultant.* In publicly disclosing this information, Cleveland Clinic tries to provide information as accurately as possible about its physicians' and scientists' connections with industry.

As of 9/20/2021, Dr. Kosunick has reported no financial relationship with industry that is applicable to this listing. In general, patients should feel free to contact their doctor about any of the relationships and how the relationships are overseen by Cleveland Clinic. To learn more about Cleveland Clinic's policies on collaborations with industry and innovation management, go to our Integrity in Innovation page.

Public Health Service-Reportable Financial Conflicts of Interest. Cleveland Clinic scientists and physicians engage in basic, translational and clinical research activities, working to solve health problems, enhance patient care and improve quality of life for patients. Interactions with industry are essential to bringing the researchers' discoveries to the public, but can present the potential for conflicts of interest related to their research activities. Click here to view a listing of instances where Cleveland Clinic has identified a Public Health Service (PHS)-Reportable Financial Conflict of Interest and has put measures in place to ensure that, to the extent possible, the design, conduct and reporting of the research is free from bias.

* Cleveland Clinic physicians and scientists subscribe to the guidance presented in the PhRMA Code on Interactions with Healthcare Professionals and the AdvaMed Code of Ethics on Interactions with Health Care Professionals. As such, gifts of substantial value are generally prohibited.

Patient Satisfaction Reviews

344 Patient Satisfaction Reviews

The Patient Satisfaction Rating is an average of all responses to the care provider related questions shown below from our nationally-recognized Press Ganey Patient Satisfaction Survey. Patients that are treated in outpatient or hospital environments may receive different surveys, and the volume of responses will vary by question.

Responses are measured on a scale of 1 to 5 with 5 being the best score.

The comments are submitted by patients and reflect their views and opinions. The comments are not endorsed by and do not necessarily reflect the views of Cleveland Clinic.

Overall Star Ratings
4.9 out of 5
Explains 4.9
Courtesy, Respect & Concern 4.9
Patient Rating of Doctor 4.9

39 Patient Comments

Reviewed on Oct 22, 2021

This appt was made several months ago as a follow up to cataract surgery done by Dr Morley.

Reviewed on Oct 19, 2021

Excellent Dr.

Reviewed on Sep 9, 2021

Dr Kosunick is great

Reviewed on Aug 26, 2021

Even though I am a RN, the doctor explained what he was doing and why. He also was so kind in reassuring me that my macula looks wonderful. A concern, since my Dad lost his vision d/t macular degeneration.

Reviewed on Aug 26, 2021

The Dr is wonderful ! He takes te to explain.and answers questions I have.

Reviewed on Aug 26, 2021

The Dr is very personable

Reviewed on Aug 25, 2021

I had an excellent experience with my eye exam appointment.I was taking in right on time and all the nurses and doctors and everyone associated right down to the personnel on the desk we're all very courteous friendly and professional.

Reviewed on Aug 25, 2021

The doctor was able to help me understand an aspect of my vision which I was unsure about. His explanation was very detailed and I was very thankful for the additional information.

Reviewed on Aug 9, 2021

The Dr was outstanding, We have been to see him for past checkups and, he is the reason we continue at this location. Very good at listening and answering our questions. Has excellent personality and calming affect. Made good recommendations and was attentive.

Reviewed on Aug 9, 2021

I have provided comments in each section. All in all, this was good experience. We will continue annual check-ups with this Dr.

Reviewed on Aug 4, 2021

Great,caring Dr.

Reviewed on Aug 4, 2021

Great Dr.

Reviewed on Jul 27, 2021

I have been seeing Dr. Kosunick every year for 10 years. He is always professional and thorough in his examinations. I will continue to seek his expertise in the care of my eyes.

Reviewed on Jul 23, 2021

Great and personable doctor.

Reviewed on Jul 20, 2021

I am never nervous or anxious when I have an appt. With Dr. K. He is very comfortable to talk to.

Reviewed on Jul 20, 2021

I would absolutely recommend Dr. K!!!

Reviewed on Jun 15, 2021

I'm a diabetic and Dr. Kosunick is a Very professional, gives all the answers I ask and clearly and understandably.

Reviewed on Jun 9, 2021

Beat eye doctor ever. So thankful for his care.

Reviewed on Jun 8, 2021

The doctor was extremely knowledgeable in his specialty and made me feel comfortable. I have since taken his directions and feel they have worked well.

Reviewed on Jun 7, 2021

always confident with dr Kosunick with his knowledge and his personal touch .. he makes me feel really important .. very professional as well is his nurse and admitting stafff

Reviewed on Jun 7, 2021

always a good and informative experience with dr Kosunick !!!!!!!!!

Reviewed on May 26, 2021

he was such a thorough and efficient doctor. he was easy to talk to and explained everything perfectly. I would 10/10 recommend this doctor.

Reviewed on May 7, 2021

dr kosinek always is very courteous and takes time for my many guestions and is interested in my care he is just excellent! done. very good.

Reviewed on May 4, 2021

Dr. Kosunick gives me/my eyes, his full attention at every appointment. I was blessed to have Dr. Costin perform my cataract surgery at the Cole Eye Institute about 7 years ago. As a patient, I felt he cared about me as a person and wanted my eyesight to be the best possible. Dr. Kosunick has that same impact. Every time I see him I feel he does know my eyes and does offer his guidance on ways to help me see better.

Reviewed on Mar 26, 2021

I have to say that Dr. Gregory M Kosunick OD has to be one of the most nicest and thorough Drs I have even seen in person. his opinions and his diagnosis have been perfect. Everyone on his team in that North ridgeville office followed all protocols to make my appointment go safely and efficiently.

Reviewed on Mar 26, 2021

Dr. Kosunick gave excellent care to our children. He is clearly experienced and confident working with pediatric patients and gives clear instructions on future care. No significant time delays during the visit. Overall a wonderful experience.

Reviewed on Mar 26, 2021

Dr. Kosunick provided excellent care to our special needs child. Our son was made comfortable and was able to complete all the standard expected care without any difficulty. The communication was very effective and plans for the future very clear.

Reviewed on Mar 19, 2021

the P.A. and doctor were both professional and friendly and used covid protocols... the Dr. reviewed my history and did a thorough eye exam... i didnt feel rushed...

Reviewed on Mar 17, 2021

No problems whatsoever. The Dr. was prompt and very efficient with the exam.

Reviewed on Mar 9, 2021

He is by far the best eye doctor I've ever been to! He truly cares about his patients and takes the time to make sure you feel comfortable with everything going on in the appointment!

Reviewed on Feb 8, 2021

I am lucky to have *Dr. Kosunick for an eye doctor! He is so knowledgeable and efficient and caring.

Reviewed on Jan 22, 2021

I believe he is a very good doctor.

Reviewed on Dec 19, 2020

Dr Kustnic is great.

Reviewed on Dec 10, 2020

excellent doctor. very clear with answers to questions. caring man

Reviewed on Dec 10, 2020

Dr. was very courtious and informative and encouraging about my treatment.

Reviewed on Dec 10, 2020

Was very pleased with Dr.s information.

Reviewed on Dec 10, 2020

Physician's have been very caring and considerate.

Reviewed on Dec 7, 2020

Excellent Dr.

Reviewed on Nov 21, 2020

Excellent doctor...fully answers all questions and is thorough. I would highly recommend this doctor.

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