The cornea receives its nutrients only from tears and aqueous humor because cornea is the only human tissue that does not contain any blood vessels.
If cornea receives minor scratch cells from surrounding slides over the wound and patch the injury quickly before any infection but deeper scratch requires medical attention.
Saturday, February 27, 2010
Wednesday, February 24, 2010
How we see?
Very fundamental question and answer could covers pages but here is a very easy and short write up of how does we see.
Our eye is just like a conventional camera that directs light beam into a film. In addition to other parts most important two part of our eye are lens and retina. When light reflects from an object passes through lens and converge on a precise spot on the retina it creates an upturned image of that object. The sensation then carries to brain by optic nerve and we see that definite object clearly.
When light can't converge appropriately or cornea is not in ideal shape so they don’t create a perfect reflection which results to indistinct or distorted picture. That's why we are now start suffering from eyesight trouble.
Our eye is just like a conventional camera that directs light beam into a film. In addition to other parts most important two part of our eye are lens and retina. When light reflects from an object passes through lens and converge on a precise spot on the retina it creates an upturned image of that object. The sensation then carries to brain by optic nerve and we see that definite object clearly.
When light can't converge appropriately or cornea is not in ideal shape so they don’t create a perfect reflection which results to indistinct or distorted picture. That's why we are now start suffering from eyesight trouble.
Tuesday, February 23, 2010
Why this vision correction blog is created
Easy vision correction blog is dedicated to those who are frustrated with their low vision power and looking some means/remedies to rectify the problem. Here all of modern and old vision correction protocol and practice will be discussed in detail and a collection of most advance vision correction resources will be available.
I will be much happy if a single person get a little benefit from my effort.
I will be much happy if a single person get a little benefit from my effort.