Nearsighted (Myopia)
Light focuses in front of the retina (as though the eyeball were too long). Therefore, a blurred image falls on the retina. A concave lens is used to move the light rays back.

(Generally means blurred distant vision)
Farsighted (Hyperopia)
Light focuses behind the retina (as though the eyeball were too short). Therefore, a blurred image falls on the retina. A convex lens is used to move the light rays forward.

(Generally means blurred near vision)

Astigmatism
The light rays focus both in front of and behind the retina, therefore creating a twisted or toric image, usually due to the oval slope of the cornea. A cylindrical lens is used which casts two separate images on the retina one pushing forward and one pulling backward.

(Could mean blurred and near distant vision)

Emmtropia (Normal)
Light rays focus exactly on theretina, creating
a clear image.

(Generally means normal vision)

QualSight Preferred
LASIK Pricing