Melbourne Excimer Laser Group - Options for correction


About Excimer Laser	Current technology	Vision correction options	Who is MELG?	Where to find us

Vision Problems: Refractive

Normal vision In a normal eye, light rays pass through the cornea and lens then focus on the retina in a precise way without blurring.
Short-sighted vision A short-sighted, or myopic eye is longer than normal. Light rays focus in front of the retina rather than on the retina. Distant objects look blurred.
Long-sighted vision A long-sighted, or hyper-metropic eye is shorter than normal. Light rays focus behind the retina, and close objects look blurred.
Astigmatism Many people with myopia or hypermetropia also have some astigmatism. Caused by changes in the curvature of the cornea itself, astigmatism distorts the light rays entering the eye and prevents them from focusing clearly.