Family-Friendly Eyecare in Historic Frederick

Serving Patients' Vision Care Needs Since 1985

Office Details

249 East Church Street
Frederick, Maryland 21701
(T) 301-662-6761

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Mon. - Fri. 9am - 5pm
Wed. & Sat. evenings by appt

Vision News

What causes blood in your eyes (subconjunctival...

Find out what causes broken blood vessels in the eye and how long it should...

Contact Lenses vs. Eyeglasses: Which are Best...

Are you better suited to glasses or contact lenses? Learn which is best for your...

The 2017 Worst Toys List by W.A.T.C.H....

The organization devoted to protecting children from unsafe toys has just released their 10 Worst...

How to Get Rid of a Stye

Have a pimple-like bump on your eyelid? How to get rid of it for good.

Retina of the Eye - Definition and...

Learn about the retina - the light-sensitive structure in the back of the eye.

Updates from Dr. Kracher

July 27, 2015
FREDERICK, Md. – Through the Chesapeake Bay Foundation, several colleges tested fresh water streams and lakes in Maryland that show high levels of harmful bacteria, specifically in Frederick, the harmful bacteria ent...

Eye Anatomy

CORNEA: Transparent front segment of the eye that covers iris, pupil, and anterior chamber, and provides most of an eye's optical power.
PUPIL: Variable-sized, circular opening in center of iris; it appears as a black circle and it regulates the amount of light that enters the eye.
IRIS: Pigmented tissue lying behind cornea that (1) gives color to the eye, and (2) controls amount of light entering the eye by varying size of black pupillary opening; separates the anterior chamber from the posterior chamber.
LENS: Natural lens of eye; transparent intraocular tissue that helps bring rays of light to focus on the retina.
RETINA: Part of the eye that converts what we see into electrical impulses sent along the optic nerve for transmission back to the brain. Consists ofmany named layers that include rods and cones.
MACULA: Small, specialized central area of the retina responsible for the sharpest central vision.
VITREOUS: Transparent, colorless, gelatinous filling; in the rear two-thirds of the interior of the eyeball, between the lens and the retina.
OPTIC NERVE: Largest sensory nerve of the eye; carries impulses for sight from retina to brain.
SCLERA: The white of the eye; a protective fibrous layer that is the outer covering of the eyeball except for the part that is 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.