Laser surgery to correct near sightedness is fairly expensive. You could pay 2,100-2,500 dollars per eye.
The simple answer is that the price is roughly the same in the US and in Canada. What determine's which is more expensive has more to do with the type of laser being used and the quality and reputation of the opthalmologist that performs the procedure.
Being near sighted means one is unable to see distant objects clearly. Nearsighted people often wear glasses or contact lenses to correct their vision.
Laser vision correction is not 100% effective but it provides correction to the 1/100 of a power, which is nearly 100%. To a human being who required glasses or contact lenses before, it will be a paramount change.
A mutation is an occurrence that remains consistent in the genetic code from generation to generation. Being color blind is not a mutation because it is not hereditary. It is considered a minor defect of vision, much like being near sighted or far sighted.
No, blinking is an automatic reflex that has no connection to vision. Blind people blink as much as sighted people (unless they are blind because the eyeball itself is missing).
The term for normal vision would depend on what aspect of normal vision you are talking about. The word for needing no correction because the lens correctly focuses on the retina, it is emmetriopia. The word for being able to see all colors is trichromatopsia.emmetropia
No, there is nothing you can do stop double vision without it being a permanent fix. Some of the permanent treatments include eye exercises, wearing a patch, prism correction, and surgery.
bifocals are glasses that can help you see close and see far.bi means two.
Different governments have different requirements for being "legally blind". In North America and most of Europe, a person must have 20/200 vision (the equivalent to 6/60) or worse in their better eye WITH the best correction possible. Also, a person who has normal vision but an impaired visual field can qualify as legally blind. The normal visual field is 180 degrees, and the person must have 20 degrees or less.
Reading glasses are usually because someone is far-sighted, and their close-up vision needs help. This commonly begins to happen past the age of 40.
It means you can't see far distances
only if they try and hit the ball!