Amongst the most important things
needed in life are good vision and good health, people are always surprised,
about how they are able to see and appreciate the beauty of nature. According
to the early civilization of Egypt, Mesopotamia and Greek. It was known that
vision is specifically obtained only the use of lenses which form the basis of
all optical instruments such as the eye, microscope, telescope, camera, prism,
binocular etc.
needed in life are good vision and good health, people are always surprised,
about how they are able to see and appreciate the beauty of nature. According
to the early civilization of Egypt, Mesopotamia and Greek. It was known that
vision is specifically obtained only the use of lenses which form the basis of
all optical instruments such as the eye, microscope, telescope, camera, prism,
binocular etc.
A lens is therefore, a transparent
optical medium which is bounded by the two curved polished surface that
converges and damages all parallel rays of light to a point focus to form
image.
It is available in different types such
as convex, concave, bifocal, trifocal lenses etc. it is also dispensed in two
major forms which are spectacles form and contact lens form.
as convex, concave, bifocal, trifocal lenses etc. it is also dispensed in two
major forms which are spectacles form and contact lens form.
Spectacle lenses are those lenses form
that are glazed into a frame and won in front of the eye for corrective purpose
while contact lenses are directly infused over the lenses are directly influenced over
the cornea of the eye without a frame. It serve the same corrective purpose as spectacle
lenses by correcting different types of ocular disorder such as shortsightedness,
long-sightedness, astigmatism, presbyopia etc. it is also used for both
cosmetics and therapeutic purpose. Both content and spectacles lenses are
available in various types such as toria, spherical and varilux lenses. There
are strictly dispensed by an ophthalmologist, optometrist and an optician.
that are glazed into a frame and won in front of the eye for corrective purpose
while contact lenses are directly infused over the lenses are directly influenced over
the cornea of the eye without a frame. It serve the same corrective purpose as spectacle
lenses by correcting different types of ocular disorder such as shortsightedness,
long-sightedness, astigmatism, presbyopia etc. it is also used for both
cosmetics and therapeutic purpose. Both content and spectacles lenses are
available in various types such as toria, spherical and varilux lenses. There
are strictly dispensed by an ophthalmologist, optometrist and an optician.
