• WebMD Physician Directory of Sioux City Eye Doctor Doctors
• The City of Sioux City
• LASIK Eye Surgery - Sioux City
• Related LASIK Eye Surgery Articles
• Sioux City Emergency Contacts
• Nearby Sioux City Hospitals
• Find a Local Pharmacy on RxList - Sioux City

Type of Physician: Eye Doctor

What is a Eye Doctor?

A certification by the Board of Ophthalmology; practitioners provide comprehensive eye and vision care. They are trained to diagnose, monitor and medically or surgically treat all eyelid and orbital problems affecting the eye and visual pathways, and to diagnose, monitor and treat all eye and visual disorders. They often prescribe vision services (glasses and contact lenses) as well as serve as a consultant to physicians and other professionals.

Specialty: Ophthalmology

Common Name: Eye Doctor

Eye Doctor Doctors in Sioux City *

LASIK Eye Surgery

Read the LASIK Eye Surgery article »

What is LASIK?

LASIK stands for laser in situ keratomileusis, which means using a laser underneath a corneal flap (in situ) to reshape the cornea (keratomileusis). This procedure utilizes a highly specialized laser (excimer laser) designed to treat refractive errors, improve vision, and reduce or eliminate the need for glasses or contact lenses. This laser procedure alters the shape of the cornea, which is the transparent front covering of the eye. Though the excimer laser had been used for many years before, the development of LASIK is generally credited to Ioannis Pallikaris from Greece around 1991.

How does LASIK work?

During the LASIK procedure, a specially trained eye surgeon first creates a precise, thin hinged corneal flap using a microkeratome. The surgeon then pulls back the flap to expose the underlying corneal tissue, and then the excimer laser ablates (reshapes) the cornea in a unique pre-specified pattern for each patient. The flap is then gently repositioned onto the underlying cornea without sutures.

What is refractive error?

In the human eye, the front surface (cornea) and lens inside the eye form the eye's "focusing system" and are primarily responsible for focusing incoming light rays onto the surface of the retina, much like the lenses of a camera focus light onto the film. In a perfect optical system, the power of the cornea and lens are perfectly matched with the length of the eye and images are in focus; any mismatch in this system is called a refractive error, and the result is a blurred image at some location.

What are the primary types of refractive error?

Myopia (nearsightedness): In people with myopia, the mismatch in focusing power and eye length causes distant objects to be blurry and near objects to be clearer.

Hyperopia (farsightedness): In people wi...

Read the LASIK Eye Surgery article »