Question

Defect of the eye due to which one plane of an object appears in focus while other plane is out of focus, is called

• A. Myopia
• B. Hypermetropia
• C. Astigmatism
• D. None of these

Answer 1

The correct option is C

Astigmatism

Explanation

1. Myopia: Also known as near sightedness in which we cannot see distant objects clearly, this occurs as the image is not focused on the retina instead it is focused in front of the retina.
2. Hypermetropia : Also called long-sightedness in which we cannot see the near objects clearly because the image is focused behind the retina.
3. Astigmatism : This defect causes blurriness in the vision due to infection in curvature of the eye .So one plane occurs in focus while other not
4. A defect of the eye due which one plane of an object appears in focus while the other plane is out of focus, is called Astigmatism .

Hence, option (c) is the correct answer.