Is refractive error corrected by prk surgery?

Answer The person who is nearsighted or farsighted suffers from refractive error. Her cornea is not shaped correctly, which affects how she sees at a distance or close up. PRK can correct some of this ref... Read More »

Top Q&A For: Is refractive error corrected by prk surgery

I have little permanent injuries that can't be corrected with surgery, anyone else has similar?

I live with an ankle that doesn't bend fully and makes me gait off so that I have back problems.I live with two bad knees - one that could have surgery but I can't take the time off to get the surg... Read More »

If everything digital is error corrected then why fiber sound cables?

Do you have an old AM radio? Try turning it on and putting it behind your AV gear.You will hear lots of electronic noise. Optical prevents this from getting into your system as a 'signal'.And digi... Read More »

How to Calculate the Refractive Index in Physics?

When light passes through a surface, the straight beam of light is bent. The beam travels through the object along a different path than the beam was following when it entered the object. The beam ... Read More »

If you are scheduled to have knee surgery and you switch jobs and put your surgery off for several months can the new insurance company deny coverage of your surgery?