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The Human eye is complex and often afflicted with many medical conditions. From simple medical procedures to more complex ones have enabled people to see again. In this article, I added the Optical Express as optics is a fast growing field in not only the human context but also in technology. Research scientists are getting closer to not only finding a way to replace parts of the human eye but replacing the human eye for the blind.
Human eye modelling
The cornea is the main refractive component of the eye’s
optical system. It provides approximately 65% of the
total focusing. Opacity or curvature of its surface
hampers the normal beam spread in the eyeball what
inevitably leads to retinal image distortion and full or
partial loss of sight. At least, 10 million people all over
the world are blind because of the damaged or diseased corneas.
http://ssalab.com/human-eye-modelling/
Dry eye is a common condition associated with an unstable tear film
that leads to reduced vision, symptoms of discomfort, and reduced quality of life.
Normally, the tear film provides a smooth optical surface for the cornea that improves the eye’s optical quality.
However, this smooth optical surface is unstable and can change rapidly between blinks.
Following a blink the tear film may degenerate locally that produces non-uniformities of tear film thickness.
http://research.opt.indiana.edu/Library/tearfilmoptics/tearfilmoptics.htm
The Optical Express online has a variety of information about Optics in various fields.
http://www.opticsinfobase.org/oe/issue.cfm
Medscape Reference (Drugs, Diseases and Procedures) has Ophthalmology Articles. The Senile cataract is a vision-impairing disease characterized by
gradual, progressive thickening of the lens. It is one of the leading causes of blindness in the world today. This is unfortunate,
considering that the visual morbidity brought about by age-related cataract is reversible. As such, early detection, close monitoring,
and timely surgical intervention must be observed in the management of senile cataracts. The succeeding section is a general overview
of senile cataract and its management. There is a free registration process though
http://emedicine.medscape.com/article/1210914-overview
