Final answer:
After death, the corneas of the eyes do become cloudy. This is part of the post-mortem changes that occur when oxygen supply stops. The cornea's role is to focus light into the eye, and any cloudiness, such as from cataracts, will disperse light and blur vision.
Step-by-step explanation:
The statement 'After death the corneas of the eyes become cloudy' is true. Post-mortem changes in the eye include clouding of the cornea, which happens quickly after death due to the cessation of oxygen supply and the breakdown of cell membranes. The cornea is important in the process of vision as it helps to control and focus the entry of light into the eye. Concerning other related topics, a cataract refers to the cloudiness in the lens of the eye, which does scatter light, causing vision to appear blurred. During certain medical procedures like repairing a retinal tear with laser, the rays entering the eye must be parallel to be effectively focused on the retina and ensure a successful outcome.
The cornea, along with the lens, functions effectively to form a real image on the light-sensing retina under normal conditions. These components of the eye have refractive indices that are greater than air, allowing them to refract the entering light towards the central axis and converge at a focal point on the retina. The precise control of the shape of the cornea contributes to maintaining normal vision in a majority of individuals.