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*
Get Directions

Don’t remember the lessons on eye anatomy from your highschool biology class?  That’s OK—we have provided the following eyeball illustration and terms just to give you a refresher course.  And we won’t give you a pop quiz afterwards…

 eye anatomy original

IRIS:
Pigmented tissue lying behind the cornea that (1) gives color to the eye, and (2) controls the amount of light entering the eye by varying the size of the black pupillary opening; separates the anterior chamber from the posterior chamber.
CORNEA:
Transparent front segment of the eye that covers the iris, pupil, and anterior chamber, and provides most of an eye's optical power.
PUPIL:
Variable-sized, circular opening in center of the iris; it appears as a black circle and it regulates the amount of light that enters the eye.
LENS:
Natural lens of eye; transparent intraocular tissue that helps bring rays of light to focus on the retina.
SCLERA:
The white of the eye; a protective fibrous outer layer covers all of the eyeball except for the part covered by the cornea.
CILIARY BODY:
a muscular ring under the surface of the eyeball; helps the eye focus by changing the len’s shape and also produces aqueous humor.
CHOROID:
the vascular layer between the sclera and the retina; the blood vessels in the choroid help provide oxygen and nutrients to the eye.
OPTIC NERVE:
Largest sensory nerve of the eye; carries impulses for sight from the retina to the brain.
MACULA:
Small, specialized central area of the retina responsible for acute central vision.
RETINA:
Part of the eye that converts images into electrical impulses sent along the optic nerve for transmission back to the brain. Consists of many named layers that include rods and cones.
VITREOUS:
Transparent, colorless, gelatinous mass; fills rear two-thirds of the interior of the eyeball, between the lens and the retina.

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

Kaitlyn

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

Kelsey

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.

Zoë

Zoë

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!