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Definition. 20/40 Vision: Someone with 20/40 vision must stand at 20' to see something that can be seen at 40' by someone with 20/20 vision.7:01 PM Nov 8thfrom Twaitter
Tip. Arcus Senilus is considered to be normal in the elderly. If present in a younger eye, it could suggest high levels of cholesterol.10:01 PM Nov 7thfrom Twaitter
Definition. Arcus Senilus: Blue ring in the peripheral cornea that makes it look like the iris is turning grayish blue.9:00 PM Nov 7thfrom Twaitter
Definition. Ophthalmologist: Medical doctor specializing in eyes. Can perform surgery and prescribe any medication, glasses and contacts.6:00 PM Nov 7thfrom Twaitter
Definition. Optometrist: Eye doctor that can prescribe glasses, contacts and select medication, but cannot perform surgery.5:00 PM Nov 7thfrom Twaitter
Definition. Optician: Assists in selecting, adjusting and dispensing glasses. Also measures the O.C., the segment height and the P.D.10:01 PM Nov 6thfrom Twaitter