Is presbyopia a combination of myopia and hypermetropia? - presbyopia more condition_symptoms
What is the correction of presbyopia?
Friday, November 6, 2009
Presbyopia More Condition_symptoms Is Presbyopia A Combination Of Myopia And Hypermetropia?
Subscribe to:
Post Comments (Atom)
2 comments:
No, because myopia is short-sightedness and farsightedness. With these two conditions can still focus on a range of distances. Presbyopia is a failure mechanism approach, which occur when one of the long-term vision and could just normal. The focus is usually by a tightening of the muscles of the lens of the eye in an appropriate manner. With age the lens becomes more difficult to reform, then what is presbyopia.
The correction of presbyopia begins with two glasses, and sits on bifocals or varifocal Trifocal to. Contact lenses are also possible, and adapt a strategy for a contact lens for distance vision in one eye and remove a contact lens for near vision in one eye, based on the ability of the brain to blur. Surgery of the cornea with the same target at different distances in each eye focusing is also possible. I personally do not think the template to the risks of surgery, that my presbyopia glasses with varifocal lenses are very effective, even considering that I play squash.
Presbyopia is farsightedness, occurs only in old age. The vision is made in the vicinity, because the pupil reaction to slow down in retirement. Convex lenses to correct the error.
Post a Comment