Blepharitis

Blepharitis Infection or inflammation of the rim of the eyelid. Often referred to as “granulated eyelids.” This is frequently due to infection of the oil glands around the lid margin, but can also be associated with dandruff, some forms of acne, and eye...

Optic Nerve

Optic Nerve The nerve endings that are contained in the retina that come together to form one large optic nerve. This nerve exits the back of the eye and connects the eye with the part of the brain that is responsible for vision. (See Eye Anatomy and How The Eye Works...

Optical Center

Optical Center The optical center of the lens is where maximum efficiency of vision occurs and should correspond with the optical center of your pupil. This is NOT necessarily the center of the lens, and its location will depend upon your frame, your interpupillary...

Cataract

Cataract A clouding condition of the natural lens inside the eye. This causes a fog or “skim” over the vision, and can cause washed out colors, halos around lights, glare, and light sensitivity. (Click for more information on...

Myopia

Myopia (near sightedness): An optical error in which the eye sees better at near than at distance without proper correction. (See Refractive Disorders for more details.)

Pantoscopic Tilt

Pantoscopic Tilt The angle at which your glasses sit before your eyes that allow your eyes to track upward and downward with minimal distortion.