Sassafras Station Blog

Posts Tagged ‘eyes’

More than forty-two thousand people every year in America receive transplanted corneas. But in some parts of the world donated corneas are in short supply and people who need new ones can’t always get them. So scientist have created artificial corneas to help those people out. Click on the link to find out more about these artificial corneas.

Scientists have created a new kind of artificial cornea, inserting a sliver of collagen into the eye that coaxes its own natural corneal cells to regrow and restore vision.

It worked in a first-stage study of 10 patients in Sweden, researchers reported Wednesday. And while larger studies are needed, it’s a step toward developing an alternative to standard cornea transplants that aren’t available in much of the world because of a shortage of donated corneas.

Lab-Created Corneas Used to Restore Vision – AOL Health

Technorati Tags: AOL, AOL health, corneas, eye health, eye injurys, eye problems, eyes

After you have check out the blog post below on optical illusions find out how optical illusions work. Find out what makes things look bigger or smaller or even a different color than how it is supposed to look. Click here to find out how optical illusions work.

Illusions often result due to mistaken judgments or erroneous vision. An error in estimating the distance to an object is due to mistaken judgment. A bright object often appears larger than a dark object of same dimensions. When objects of contrasting colors are placed in close vicinity, a certain color may be mistaken to be another. This is an error in sensing the object.

How do Optical Illusions Work?

Technorati Tags: eyes, how do optical illusions work, optical, optical illusions

Everybody loves a good optical illusion! This web site has tons of different types of optical illusions you can do. This web site also gives you instruction on how to do each illusion. Click on one of the links to check out these cool optical illusions! 

These pages demon­strate vi­su­al phe­nom­e­na, and »op­ti­cal« or »vi­su­al il­lu­sions«. The lat­ter is more ap­pro­pri­ate, be­cause most ef­fects have their basis in the vi­su­al path­way, not in the op­tics of the eye. When I find the time I will ex­pand the ex­pla­na­tions, to the de­gree that these phe­nom­e­na are re­al­ly un­der­stood; any nice and thought­ful com­ment wel­come.

Optical Illusions and Visual Phenomena

Technorati Tags: eyes, illusions, optical, optical illusions

Many people have eye problems, serious or not. Here you can find many different types of common non-serious eye problems and how to help get rid of them.

Many people have minor eye problems, such as eyestrain, irritated eyes, or itchy, scaly eyelids (blepharitis ). These problems may be ongoing (chronic) but usually are not serious. Home treatment can relieve the symptoms of many minor eye problems.

Eye Problems Noninjury – AOL Health

Technorati Tags: eye health, eye injurys, eye problems, eyes