Question

Draw ray diagrams showing a hypermetropic eye and its correction using a suitable optical device.

Answer 1

Hypermetropic eye and optical device.

1. Hypermetropic eye - The condition of an eye when the near objects are seen as blurry.
2. Optical device- An optical instrument is a device that analyses and determines the characteristics of light waves, either to improve the image for viewing or to analyze and identify their characteristics.

Ray diagram showing a hypermetropic eye.

1. The term "hypermetropia" refers to a condition in which the image of a nearby object is formed behind the retina.
2. When trying to examine an image, this could be due to the eye being too short or the crystalline lens not refracting light sufficiently.
3. When looking at objects near up, a hypermetropic patient's vision may be blurred, but when looking at objects in the distance, it may be clear.

Correction for hypermetropia.

1. It's essential to keep in mind that hypermetropia is a condition, not an illness. As a result, it is possible to rectify it.
2. The rays should be converged from behind the retina to the retina for image formation on the retina, so we will use a converging lens or convex lens.
3. Hypermetropia can be corrected by using eyeglasses having convex lenses.
4. Due to the converging property of the convex lens we use the convex lens for rectifying hypermetropia.
5. Convex lens readjusts the focus and then the image is formed on the retina.