Recent Blog Articles
Vitamin B6 flies under the radar: Are you getting enough?
The formula shortage is hurting families: What parents should know and do
Gyn Care 101: What to know about seeing a gynecologist
Swimming lessons save lives: What parents should know
Strong legs help power summer activities: Hiking, biking, swimming, and more
What is a successful mindset for weight loss maintenance?
French fries versus almonds: Calorie for calorie, which comes out on top?
Summer camp 2022: Having fun and staying safe
Finding balance: 3 simple exercises to steady your steps
An action plan to fight unhealthy inflammation
What Is It?
LASIK is a form of eye surgery that uses a laser to reshape the cornea. LASIK stands for "laser in situ keratomileusis."
The cornea is the clear, round "window" of tissue that allows light to enter the front of the eye. By reshaping the cornea, the surgeon adjusts the focus of light on the retina. (The retina is the layer at the back of the eye responsible for sight.)
To continue reading this article, you must log in.
Subscribe to Harvard Health Online for immediate access to health news and information from Harvard Medical School.
- Research health conditions
- Check your symptoms
- Prepare for a doctor's visit or test
- Find the best treatments and procedures for you
- Explore options for better nutrition and exercise
I'd like to receive access to Harvard Health Online for only $4.99 a month.Sign Me Up
Already a member? Login ».
As a service to our readers, Harvard Health Publishing provides access to our library of archived content. Please note the date of last review or update on all articles.
No content on this site, regardless of date, should ever be used as a substitute for direct medical advice from your doctor or other qualified clinician.
Free Healthbeat Signup
Get the latest in health news delivered to your inbox!