Eye Care Blog

Orthokeratology

The term orthokeratology comes from the words ortho, meaning “straight,” and keratology, relating to the cornea. It should come as no surprise then that this form of vision therapy seeks to actually change the curvature of the cornea—in order to lessen the refractive error. Using much the same principle as an orthodontist employs when using braces to correct the position of wayward teeth, orthokeratology utilizes a series of relatively flat, hard PMMA contact lenses to mold the cornea gradually into the desired shape. Read the rest of this entry »

In order to fully understand how a contact lens works, you should first have a basic knowledge and appreciation of the structure and workings of your eyes.

Anatomy of the Eye

The eye is often compared to a camera. There are many similarities, but the eye is actually much more complex and miraculous: it focuses and adjusts to light automatically, and the film never runs out. Moreover it picks up a constant stream of images, in contrast to the single image that registers on each frame of film; it is self-cleaning and “develops” film instantly —all in the space of a one-inch-diameter globe! Read the rest of this entry »