Final answer:
Blindness in individuals with AIDS can be a result of opportunistic infections, with Cytomegalovirus (CMV) retinitis being a common cause. This condition occurs because HIV damages the immune system, leading to AIDS.
Step-by-step explanation:
Blindness sometimes occurs as a result of Acquired Immunodeficiency Syndrome (AIDS), often due to opportunistic infections that affect individuals with compromised immune systems. While there are various infections that could lead to blindness, one common opportunistic infection causing blindness in people with AIDS is caused by a fungus called Cytomegalovirus (CMV) retinitis.
CMV retinitis is an inflammation of the retina that can lead to blindness. It is one of many opportunistic diseases that can affect individuals with AIDS, as AIDS results from years of damage to the immune system by the Human Immunodeficiency Virus (HIV), significantly reducing the number of helper T cells and allowing such infections to occur.