describes about the invention and history of contact lenses.How theses contact lenses are made and more..

2. • The history of contact lenses
starts with the famous Italian
scientist Leonardo da Vinci.
He produced the first known
sketches that suggested the
optics of human eye could be
altered by placing the cornea
directly in contact with water.

3. Early contact lenses
were heavy and that
fully covers the
eyes.

4.  An American optometrist named William
Feinbloom (1904-1985) introduced scleral lenses
made of a combination of glass and plastic
those were comparatively lighter than glass
blown contacts.

5.  In 1948, California optician Kevin Tuohy(1919-1968)
introduced the first contact lens that resembled modern gas
permeable contact lenses. These contact lenses are called
“corneal” contact lenses since they were smaller in diameter
and covered only the portion of cornea

6. These lenses were made up of non -
porous plastic material called
polymethyl methacrylate.

7. • The PMMA lenses could move at each blink, so oxygen
carrying tears could be “pumped” under the lens to keep
the cornea healthy.

8.  The first hydrophilic or
water loving hydrogel soft
contact lens material is
introduced by Otto
Wichterle and Drahoslav
Lim in 1959.This led to the
1971 launch of first FDA
approved soft ontact lenses
in the united states.

10. Nowadays contact lenses
are used widely as a
prescription lens or as a
fashionable eyewear.

11. The contact lenses are now
available in wide range as
prescription lenses, colored
lenses etc.

12. To know more about
contact lenses and to clarify
your doubts, visit
http://forbeseyecare.co.uk