ad info




CNN.com
 MAIN PAGE
 WORLD
 U.S.
 LOCAL
 POLITICS
 WEATHER
 BUSINESS
 SPORTS
 TECHNOLOGY
 SPACE
* HEALTH
 AIDS
 Aging
 Alternative
 Cancer
 Children
 Diet & Fitness
 Men
 Women
 ENTERTAINMENT
 BOOKS
 TRAVEL
 FOOD
 ARTS & STYLE
 NATURE
 IN-DEPTH
 ANALYSIS
 myCNN

 Headline News brief
 news quiz
 daily almanac

  MULTIMEDIA:
 video
 video archive
 audio
 multimedia showcase
 more services

  E-MAIL:
Subscribe to one of our news e-mail lists.
Enter your address:
Or:
Get a free e-mail account

 DISCUSSION:
 message boards
 chat
 feedback

  CNN WEB SITES:
CNN Websites
 AsiaNow
 En Español
 Em Português
 Svenska
 Norge
 Danmark
 Italian

 FASTER ACCESS:
 europe
 japan

 TIME INC. SITES:
 CNN NETWORKS:
Networks image
 more networks
 transcripts

 SITE INFO:
 help
 contents
 search
 ad info
 jobs

 WEB SERVICES:

  health > specials > eyeWebMd
  MAIN | OVERVIEW | PROCEDURES | EVALUATION | POSTMORTEM | FUTURE |

PRK

PRK
INTERACTIVE:
PRK procedure

RELATED VIDEO:
Laser PRK
Doctor: Hideharu Fukasaku, MD

10 sec 0.9 Mb quicktime movie

Please enable Javascript


Source: ASCRS-ASOA

August 18, 1999
Web posted at: 11:45 a.m. EDT (1545 GMT)


In this story:

Whom it helps

How it is done

Results

What can go wrong

RELATEDS icon



Whom it helps

PRK, or photorefractive keratectomy, is generally used for nearsightedness (up to about -5 diopters), farsightedness (to about 3 diopters) and astigmatism (about 3 or 4 diopters).

How it is done

Using the excimer laser, the surgeon vaporizes the surface of the cornea to a precise depth specified by the computer so that it is reshaped.

Results

"The outcomes are similar for PRK and LASIK," says Hersh. But with PRK, there tends to be more post-op discomfort.

What can go wrong

Complications are similar to those with LASIK. "The potential risk for infection, while small, is a little higher with PRK,'' says Dr. Kerry Assil, a Santa Monica, California, ophthalmologist who specializes in refractive surgery.

Back to Procedure Main




RELATEDS:
Check out our extensive list of Internet resources
LATEST HEALTH STORIES:
China SARS numbers pass 5,000
Report: Form of HIV in humans by 1940
Fewer infections for back-sleeping babies
Pneumonia vaccine may help heart, too
 LATEST HEADLINES:
 
   
   
   
   
   
   
   
   
   
   
   
 


Back to the top

 

© 2001 Cable News Network. All Rights Reserved.
Terms under which this service is provided to you.
Read our privacy guidelines.