Locations

Tyler

2440 E. Fifth Street
Tyler, TX 75701
903-595-0500
800-595-2040

Athens

608 S. Palestine
Athens, TX 75751
903-677-5804

Bullard

151 Hwy. 69 N., Ste. 1000
Bullard, TX 75757
903-894-8217

Jacksonville

305 W. Rusk
Jacksonville, TX 75766
903-586-9611

Lindale

1440 S. Main
Lindale, TX 75771
903-882-8990

Winnsboro

408 S. Main
Winnsboro, TX 75494
903-342-5799

How the Eye Works

Basic Eye Anatomy	The Farsighted Eye (Hyperopia)	What Does 20/20 Mean?
Astigmatism	The Nearsighted Eye (Myopia)	The Old Eye (Presbyopia)

The Farsighted Eye (Hyperopia)

Intro
Hyperopia (i.e. farsightedness) is much less common than myopia or emmetropia. It is typically in the +1.00 to +4.00 diopter range, rarely it can be as high as +8.00 diopters.

Optics
In contrast to myopia, hyperopia occurs when the eye is too short for the power of its optical components. In hyperopia, the cornea is not steep enough and light rays hit the retina before they come into focus. In the picture above the light rays are shown to focus behind the eye (arrow). Distant objects appear blurred, and nearby objects are even more fuzzy. Most farsighted individuals need corrective eyewear to see clearly at all distances.

Spectacle Correction
Correction of hyperopia requires a lens which is convex (i.e. thicker in the middle than the edges). This acts as a magnifier, and causes objects to appear bigger by 2% per diopter. For this reason hyperopes while wearing their spectacle correction, appear to have "big" eyes. Optical aberrations and decreased peripheral vision occur are likely to occur with large amounts of hyperopia.

Contact Lens Correction
Contact lens correction reduces the optical problems that plague spectacle lenses, but they have their own unique problems including high-maintenance care solutions, corneal warpage, corneal suffocation, corneal infections, and eyelid allergies.