Image is formed for the shortsighted person:a)Eye lensb)Before retinac)At retinad)Behind retinaCorrect answer is option 'B'. Can you explain this answer?

Question

Answer

Myopia means near - sightedness, the image doesn't form at retina but at a place before retina. Concave lens is used to correct this defect.

Answer

Answer

Explanation:
When a person is shortsighted or myopic, they have difficulty seeing distant objects clearly. This is because the image is formed in front of the retina instead of directly on the retina.

1. Eye Lens:
The eye lens is responsible for focusing light onto the retina. In a normal eye, the lens bends or refracts light so that it converges to a point on the retina, creating a clear and focused image. However, in a shortsighted person, the lens is unable to bend the light enough to focus it directly on the retina.

2. Before Retina:
In a shortsighted eye, the image is formed before the retina. This means that the light rays coming from distant objects converge in front of the retina, resulting in a blurred image on the retina.

3. At Retina:
Ideally, the image should be formed directly on the retina for clear vision. The retina is a layer of light-sensitive cells at the back of the eye that converts light into electrical impulses, which are then sent to the brain for interpretation. However, in a shortsighted person, the image is not formed directly on the retina.

4. Behind Retina:
If the image is formed behind the retina, it would indicate that the person is farsighted or hyperopic. In this condition, the eye lens is unable to bend the light enough to bring it to a focus on the retina, causing a blurred image to be formed behind the retina.

Therefore, the correct answer is option 'B' - the image is formed before the retina for a shortsighted person. This results in a blurred image for distant objects, while close objects may still be seen clearly. To correct this vision problem, concave lenses are used to diverge the incoming light rays before they enter the eye, allowing the image to be formed directly on the retina.

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