Location & Hours

7686 Oak Ridge Hwy.
Knoxville, TN 37931

Monday: 9:00am thru 6:00pm
Tues. & Wed.: 8:30am thru 5:00pm
Thursday: 9:00am thru 6:00pm
Friday: 7:30am thru 4:30pm
*Fri: appts till 1pm, office open all day*
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services overview

As a fully licensed and equipped optometric practice, Karns Vision Center offers a complete range of eye care services to all our patients.

Whether the eye care issue involves correcting refractive errors with eyeglass or contact lenses, or helping a student find amazing frames, or diagnosing/treating eye conditions and diseases, our experienced team will identify and implement the best eye care solutions for you.

Eye Health Evaluation

With our years of experience in diagnosing and treating typical vision disorders such as nearsightedness, farsightedness, amblyopia, presbyopia, cataracts, macular degeneration and diabetic retinopathy, Dr. Shane Presson and Dr. Michelle Presson and their team are equipped to provide appropriate therapeutic medical eye care.

At the same time, the Karns Vision Center team offers a wide array of high quality eye care products at reasonable prices. Our patients never pay too much for the best quality in eyeglasses, contact lenses, sunglasses, progressive and bifocal lenses, and outstanding service.

Treatment of Eye Disease

If you are diagnosed with an eye disease, you want the best treatment available to get your eyes healthy again. At Karns Vision Center, we stay current with best treatment practices. Based on your diagnosis, we may recommend a wide variety of approaches, including improved nutrition, prescription medicines, therapy and vision exercises, or medical procedures.

Good Eyecare Begins With A Yearly Eye Exam!

Although many do not realize it, the best way to protect your vision is with a yearly eye checkup.  Even a basic eye exam can instantly detect many health-threatening conditions, such as tumors, vascular irregularities, and diabetes-related injury to the retina. At Karns Vision Center, that basic checkup is brief and painless.


LASIK, a form of refractive surgery, is an option for vision correction without needing to wear glasses or contact lenses. Simply put, LASIK reshapes the cornea with a laser.

Recently, other surgical alternatives have become available. Among these is a technique called phakic IOL implantation which involves implanting a lens behind the cornea, but in front of the iris. With this new option, many of those who were too highly nearsighted for LASIK are now candidates for refractive surgery.

If you are interested in refractive surgery, please let us know. Refractive surgery is not to be taken lightly. Detailed testing is necessary to determine whether or not you are a good candidate for the surgery. If testing shows you to be a good candidate, we can refer you to our co-management team at Woolfson Eye Institute. In addition, we provide post-operative care for refractive surgery.

Woolfson Eye Institute is a team of world-renowned surgeons and support staff who will guide you every step of the way. This team is one of the only LASIK providers offering multiple laser platforms to provide their patients with a truly customized treatment plan. Woolfson Eye Institute has given over a hundred thousand patients the best vision possible and that is why we choose them for our own patients at Karns Vision Center. Quality patient care is the top priority at Woolfson Eye Institute. It is important to them that they provide their patients with caring and experienced staff that will listen and clearly answer any questions about the surgery.

Woolfson also utilizes the most advanced diagnostic equipment and tools which allow them to identify patients that are not ideal candidates for LASIK but would rather benefit from one of their other treatment options such as PRK, ICL, or Refractive IOL. At Karns Vision Center, we can proudly say that every one of our patients who have gone to Woolfson Eye Institute have never been happier.

To find out more information about Woolfson Eye Institute, click on the link provided below to visit their website.

Our Latest Technology

Corneal Topographer

Corneal TopographerThe Corneal Topographer gives us a 3D image of the cornea (front surface of the eye) that aids in disease detection and contact lens fitting. This piece of equipment is critical in the diagnosis and management of keratoconus, which is a degenerative disorder of the cornea causing it to thin and become more conical in shape. When determining whether a patient is a candidate for LASIK or any refractive surgery, the corneal topographer is indispensable.

Cataracts can start to take effect in 60 percent of people older than 60. This condition occurs when the normally clear lens of the eye starts to become cloudy and this can affect the vision greatly. Most cataracts form due to a change in the chemical composition of the lens. Some changes are caused by a hereditary enzyme defect, diabetes, use of certain drugs, sun exposure, or any trauma to the eyes. Some cataracts can form on the outer edge of the lens and will not cause any noticeable vision changes, while others will form on the center of the lens causing cloudiness.

If you are experiencing double vision, blurred vision, light sensitivity, glare, or loss in color perception you might be diagnosed with cataracts. As cataracts get worse, glasses will no longer improve sight.

Over time advanced technology has allowed cataracts to be less worrisome. Cataract surgery is a process of surgically removing the clouded lens and replacing it with an intraocular lens (IOL). This procedure does not require hospitalization and insures a quick recovery. If testing shows that you may be ready for cataract surgery, we can help you choose a surgeon who is just right for you. In addition, we provide post-operative care for cataract surgery.

Our Latest Technology

Specular Microscopy

Specular Microscopy The Cornea (the clear front window of the eye) consists of five layers. The inner most layer is called the endothelium. This layer consists of specialized cells called endothelial cells that cover the posterior surface of the cornea. The primary purpose of these cells is to maintain the health and transparency of the cornea.

Advanced age, disease, injury and contact lens complications can cause significant reduction in endothelial cell density. When this occurs, the cornea becomes hazy causing glare and decreased vision.

Specular Microscopy is a non-invasive photographic technique that allows our doctors to visualize and analyze the corneal endothelium at the cellular level. Early detection of cell loss will result in prompt treatment reducing the risk of corneal edema (swelling) and helping to maintain corneal health.

Diabetes can affect your eyes by causing problems in the retina with microvascular abnormalities. This causes small blood vessels to develop microaneurysms and leak blood. After new blood vessels grow, they are porous which causes them to leak.

These leaks can cause irreversible damage to the retina and blindness. Even patients with controlled diabetes are still able to develop diabetic retinopathy. This is the reason we highly recommend patients to get a yearly diabetic eye exam, which includes retinal photography.

Diabetes can make people more likely to get bacterial infections such as pink eye and styes. This is due to the diabetes affecting the autoimmune system and lowering the resistance to infection.

Others may experience more problematic eye conditions such as diabetic retinopathy. Diabetic Retinopathy is considered the leading cause of blindness. It mainly affects those above the age of 65. This eye disease can be managed by viewing the retina with instruments which magnify the eye structure. Having early management and detection of Diabetic Retinopathy through a yearly comprehensive eye exam is important. This will ensure that you are getting the correct treatment and protection against progression of this disease.

At Karns Vision Center, we are equipped with the latest technology to ensure that each diabetic eye exam is thorough and precise.

Fundus Camera

Fundus CameraThe Topcon non-mydriatic fundus camera allows us to quickly take retinal photos. The photos help us to follow, manage and treat glaucoma, diabetes and macular degeneration.

Zeiss Cirrus HD-OCT

ZeissThe Zeiss Cirrus HD-OCT uses a laser to take precise measurements of the cornea, retina and optic nerve. This provides a comprehensive set of diagnostic tools which enable the doctors to capture and assess the defects and patterns of loss which are typical in ocular disease progression. It aids in the diagnosis, management and treatment of glaucoma, diabetic retinopathy and macular degeneration.

Zeiss Cirrus HD-OCT

At Karns Vision Center, we have the state-of-the-art equipment to diagnose, manage and treat glaucoma. Glaucoma can be treated by medication or surgery. First, medication is used to treat the disease. If the medication is not working, surgery is an option given. Either treatment will lower intraocular pressure and help manage the glaucoma.

Glucoma Surgery:Patients who are not able to lower the intraocular pressure with medications and continue to see a rise in pressure are encouraged to have laser or conventional surgery. If surgery is recommended to any of our patients, we will ensure that you are referred to a surgeon who is just right for you.

Our latest Technology

Visual Fields

Visual Field TestThe Visual Field test is used to detect changes in the side vision caused by glaucoma and other diseases. It is very important in following glaucoma treatment to check for any progression of peripheral vision loss.

Even life threatening conditions such as brain tumors and tumors behind the eye can be detected with a visual field exam.

Latest Testimonials

I appreciate Dr. Shane seeing Ralph so soon. He was the reason we went to the hospital. He did an excellent job in diagnosing Ralph as having had a stroke. If it wasn't for him there's no telling how...
Ralph S - Featured review

Dr. Presson is very thorough ans patient and takes the time to get to know me personally. I'm very satisfied with the services. I absolutely recommend them.
Anonymous - Verified customer

Dr. Michelle Presson

Dr. Michelle Presson

Dr. Michelle received her undergraduate degree from the University of South Florida in Tampa and her Doctor of Optometry from the Southern College of Optometry in Memphis in June of 1996.

Dr. Shane Presson

Dr. Shane Presson

Dr. Shane received his undergraduate degree from the University of Tennessee at Knoxville and his Doctor of Optometry from the Southern College of Optometry in Memphis in June of 1995.

Rachel Powell

Rachel Powell

Rachel is our General Office Manager. Rachel attended Grace Christian Academy through high school and received her Associates in Marketing at Pellissippi State in 2012. She graduated from King University with her Bachelor’s in Business Management in May 2014.

Michelle Beavers

Michelle Beavers

Michelle is one of our front office managers. Michelle has been with Karns Vision Center since the doors were opened in 2008. She is instrumental in all aspects of our office and patient care.

Kirsten Hibbert

Kirsten Hibbert

Kirsten is one of our front office managers. She went to Karns High School and graduated from Maryville College in 2010 with her Bachelor’s Degree in Business Management.



Kaitlyn is one of our optometric technicians who assists our doctors with our patients. She is invaluable to our office in the optical as well. Kaitlyn graduated from Karns High School in 2011.



Kelsey is one of our optometric technicians. She helps our patients learn the basics of contact lens insertion and removal and assists in our optical department. Kelsey graduated from Karns High School in 2012 and is currently attending Johnson University to receive her Religious Studies and Bible Bachelor's Degree.



Zoe is one of our optometric technicians who helps in every department of our office. She graduated from Halls High School in 2012 and graduated in 2016 from Tusculum College with her Bachlor's Degree of Arts in Psychology.

The Vision Clinic

Built on the foundation of patient convenience and satisfaction, we serve all of your family’s eye care needs under one roof. We're looking forward to seeing you!