Laser Vision Correction
Vision Resources on the Internet
- www.aao.org - American Academy of Ophthalmology
- www.webmd.com - Web MD
- www.myhealthyeyes.com - My Healthy Eyes
Diabetic Eye Disease
General Eye Information
- Diagram of the Eye
- Glossary of Vision-Related Terms
- Eye Health-Related Organizations List
- Eye and Face Protection
- Preventing Eye Injuries
- Sunglasses: Protection from UV Eye Damage
- Computer Use and Eyestrain
- Graphical examples of eye diseases
- Diseases and Conditions A-Z
- Computer Vision Syndrome
- Basic Lasik: Tips on Lasik Eye Surgery
- LASIK FAQ
- Traditional LASIK Procedure
- PRK Surgery
- What is LASIK?
- What should I expect?
- Low Vision: Help Is Available
- Do You Have Low Vision?
- Low Vision
- Frequently Asked Questions About Low Vision
- Foundation Fighting Blindness
- Contact Lenses for Vision Correction
Low Vision Evaluation and Rehabilitation
- Low Vision Gateway
- AMD Alliance
- American Foundation for the Blind
- National Association of Blind Veterans
- Prevent Blindness
- Vision Technology
- Positively Minnesota: Services for the Blind
- Minneapolis Incidental Transportation for Seniors
- Access Metro Transit
- Minneapolis Services for the Blind
- Facts About Age-Related Macular Degeneration
- Results--Age-Related Eye Disease Study
- Macular Hole Resource Guide
- Macular Pucker Resource Guide
- Macular Degeneration Foundation
- Age-Related Macular Degeneration
Oculoplastic Surgery and Eyelids
- Blepharitis Resource Guide
- Blepharospasm Resource Guide
- Ptosis-Eyelids that Droop
- Laser Skin Resurfacing
- Entropion - Eyelids That Turn In
- Ectropion - Eyelids That Turn Out
- Eyelid Skin Cancers
- Thyroid Eye Disease - Protruding, Irritated Eyes
- The Wet Eye -
- Congenital Lacrimal Obstruction - Tearing in Children
Other Eye Disorders
Pediatric Eye Disorders
- Amblyopia Resource Guide
- Eye Tests
- Signs of Eye Trouble
- Eye Problems in Children
- Your Baby's Developing Sight
- Children's Eye Injuries: Prevention and Care
For more than three decades, laser vision correction has been the dominant method for refractive surgery. Today, LASIK is most frequently used as an outpatient procedure for the correction of low, moderate and high prescriptions.
Prior to LASIK surgery, your eye doctor will create a computer-generated map of the surface of your eye. This information is calibrated into the laser used for the surgery. After anesthetizing the eye with eye drops, the surgeon then uses a microsurgical instrument to create a corneal flap. An excimer laser directs a cool beam of light onto the surface under the flap in order to precisely and gently reshape the eye. The flap is put back in place, completing the brief surgery (usually five minutes or less per eye). Patients are usually back to their normal activity level within 24 hours.
Good candidates for LASIK are at least 18 years of age, in generally good health, with no eye diseases (such as cataracts or glaucoma) or certain health problems (such as uncontrolled diabetes or autoimmune disease). Candidates must also have a stable glasses prescription for at least one year. Because of hormonal shifts, pregnant or nursing women are not eligible for at least two menstrual cycles after nursing has been discontinued.
PRK (Photorefractive Keratectomy)
PRK is another commonly used form of laser correction surgery. No scalpels are used nor are any incisions made in this procedure. PRK is often used when the patient does not have enough corneal thickness for LASIK.
Once again, your eye doctor prepares a detailed map of your eyes' surface which is calibrated to the excimer laser. After anesthetizing the eye with eye drops, the surgeon gently removes the eye's protective first layer of cells (epithelium) with the excimer laser and carefully reshapes the area with computer-controlled pulses of cool laser light. Deeper cell layers remain virtually untouched and the epithelial layer regenerates itself in days.
Post-operatively, PRK patients are placed on antibiotic drops and anti-inflammatory agents to reduce swelling and promote comfort. Patients are also fitted with a bandage contact lens for the first two or three days until the epithelium is healed. To complete the healing process, PRK patients use steroid anti-inflammatory drops for about two months after the procedure.