Common Defects of Human Eyes

Defects of Human Eyes

 

Far Sighted Vision:

 

In this defect image is formed behind the retina. The cornea and the lens cannot bend the light rays on retina. To treat this defect artificial lenses are used that bend the incoming rays on retina and form a clear image on retina.

 

Near Sighted Vision:

 

In this defect image is formed in front of the retina. To treat this defect concave lens is used that focus the light or retina.

 

Colour Blindness:

 

In this defect a person cannot distinguish between green and red colours and is called colour blind.

 

Note: Modern competitive conditions imply mandatory knowledge of the international language. Today it is simply indecent not to know English. Businessmen often like to joke about this: “it’s better to come to negotiations in lingerie than not to know English.” Well, seriously, at the present time there are a lot of techniques and techniques that contribute to the rapid learning of English. Any method of learning the language presupposes the desire, time and great capacity for work of the trainee. Without these criteria, it will not be possible to benefit from training. In any city, there are many such courses for a reasonable fee, promising a quick study of the English language. The teacher recruits a small group of people and, depending on the level of knowledge of the audience, chooses the appropriate teaching methodology. Alternatively, you can choose a more budget method: find a suitable video course on the Internet. It is advisable to choose the first option. Control by the teacher will not allow you to relax and not learn the material.

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