What is Presbyopia?
Presbyopia is a visual condition in which patients are having difficulties
in reading small prints and in some cases in far distances as well. It is a
physiological condition which affects individuals over 40 years old.
Progressive lenses are
used to meet the patients who have vision problem and need an aid to see
far, intermediate and near. It is from the same family of Bifocal lenses,
“Bi” in Latin meaning two. Instead of the visibility of the line or the
round reading segment on the lens, a progressive lens doesn’t have any lines
and segments. They are sometimes called “multifocal”, “graduated”, “Varilux”
and “bifocal” lenses.
What is Myopia?
Myopia is a visual condition in which patients have difficulty reading in
far distances. It is where the ray of light focus in front of the retina. It
is also called short-sightedness or near-sightedness.
Concave or minus lenses
What is Hyperopia?
Hyperopia is a visual condition in which patients have difficulty in seeing
at near or in some cases in far as well. It is where the ray of light focus
at the back of the retina. It is also called far-sightedness or
Convex or plus lenses
What is Astigmatism?
Astigmatism means that the cornea (the thin film covering the eye) is oval
like a football instead of spherical like a basketball. These results to the
lights to focus on different meridians or parts of the eye that result to
blurred vision in far and near distances.