U.S. doctors online nowAsk doctors free
A 41-year-old member asked:

Help docs! i'm trying to find out what causes nearsightedness/farsightedness ?

1 doctor answer1 doctor weighed in
Dr. Tim Conrad
Ophthalmology 35 years experience
Imbalance: Nearsightedness and farsightedness are caused by an inappropriate amount of refraction for the particular eye. In nearsightedness, the amount of focusing present is too much for the length of the eye. In farsightedness, it is the opposite.
Created for people with ongoing healthcare needs but benefits everyone.

Related questions

A 39-year-old member asked:
Is it possible for nearsightedness to become farsightedness?
1 doctor answer1 doctor weighed in
A 34-year-old member asked:
I was nearsighted and also a little farsighted. Is that even possible?
1 doctor answer1 doctor weighed in
A 37-year-old member asked:
Does glaucoma affect nearsightedness or farsightedness?
3 doctor answers11 doctors weighed in
A 33-year-old member asked:
How can you be nearsighted, farsighted, and astigmatism?
1 doctor answer2 doctors weighed in
A 30-year-old member asked:
Does astigmatism and farsightedness progress as fast as nearsightedness?
1 doctor answer1 doctor weighed in
Last updated Jan 6, 2014
Connect with a U.S. board-certified doctor by text or video anytime, anywhere.
24/7 visits - just $39!
50% off with $15/month membership


Content on HealthTap (including answers) should not be used for medical advice, diagnosis, or treatment, and interactions on HealthTap do not create a doctor-patient relationship. Never disregard or delay professional medical advice in person because of anything on HealthTap. Call your doctor or 911 if you think you may have a medical emergency.