Vision Procedures Overview

Vision Correction Procedures
Anatomy of the Normal Eye
Most Common Vision Disorders


Vision Correction Procedures

When light enters the normal eye, it is bent and focused on the nerve layer called the retina. When the light is not properly focused vision is blurry. The technical term for this is refractive error. Refractive errors fall into three basic categories.

PROCEDURE

USED FOR

LASIK

LASer in-situ keratomileusis

Myopia (nearsightedness).
Hyperopia (farsightedness).
Astigmatism

LASEK

Laser epithelial keratomileusis

Non-candidates for LASIK because of thinner or flatter corneas.

PRK

Photorefractive keratectomy

Non-candidates for LASIK because of thinner corneas or exceptionally dry eyes.

LENS Implant Surgery

Phakic and Non-Phakic IOL (Intra Ocular Lens) Implants

Non-candidates for LASIK or other vision correction procedures because of thinner corneas, or severe myopia or hyperopia, or other severe irregularities of the cornea.

Presbyopia (normal aging of the eye)

Cataract Surgery

Photorefractive keratectomy

The safe removal of cataracts.

 

 


Anatomy of the Normal Eye

When light enters the normal eye, it is bent and focused on the nerve layer called the retina. When the light is not properly focused vision is blurry. The technical term for this is refractive error. Refractive errors fall into three basic categories.

 

 


Most Common Vision Disorders Treatable with Refractive Surgery

When light enters the normal eye, it is bent and focused on the nerve layer called the retina. When the light is not properly focused vision is blurry. The technical term for this is refractive error. Refractive errors fall into three basic categories.

VISION DISORDER

REFRACTIVE DYNAMICS

MYOPIA
(nearsightedness or shortsightedness):


This condition results in light focusing in front of the retina. Individuals with myopia see near objects clearly, but distant objects are blurry.

HYPEROPIA
(farsightedness):


This disorder results in light focusing at a virtual point behind the retina. For farsighted individuals, distant objects are blurred and near objects are even more blurred.

ASTIGMATISM:


This occurs when the cornea is oval shaped, like an egg or football. In this condition light is bent unequally, forming two focal points and preventing a clear image from forming on the retina. One may have astigmatism alone or in combination with myopia or hyperopia.

PRESBYOPIA:


This is an age related condition (typically after 40) whereby the eyes gradually lose the ability to see things up close because the lens of the aging eye can no longer change shape to focus. Presbyopia can now be treated with Lens Implant Surgery by replacing the eyes natural lens with an artificial one.