by daniel | Nov 16, 2016 | Common Definitions in Eye Care
Refraction Part of an eye exam that determines the optical error of the eye. This is often used to measure for the strength of glasses or contacts needed to see well. It is useful in determining if there were any changes in the eye\’s ability to focus as seen in...
by daniel | Nov 16, 2016 | Common Definitions in Eye Care
Macular Degeneration Deterioration of the macular region of the retina resulting in loss of central vision. (See FAQ’s on Macular Degeneration for an extensive discussion.)
by daniel | Nov 16, 2016 | Glasses Terminology
No-line (progressive) bifocal Actually a type of trifocal with unique optics that allow reading and other “near” activities. There is no visible bifocal or trifocal line which is appealing cosmetically to many people. Often called a “graduated”...
by daniel | Nov 16, 2016 | Common Definitions in Eye Care
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...
by daniel | Nov 16, 2016 | Common Definitions in Eye Care
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...
by daniel | Nov 16, 2016 | Glasses Terminology
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...
