When the image of an object is formed in front of the retina it is usually caused due to ____________.

Concept: Myopia (shortsightedness) is an eye defect that allows a person to view a local item clearly but not far away things.

The picture is created before the retina in this deficiency, and the far point becomes closer. As a result, option 4 is right.

The focal length or radii of curvature of the lens is reduced with this condition, or the power of the lens grows, or the distance between the eye lens and the retina increases, causing the eyeball to become overly long.

This flaw can be corrected by employing a concave lens with an appropriate focal length.