Final answer:
Cortical cataracts progress by slowly increasing in size and severity over time, causing a decline in vision. Treatment involves surgically removing the clouded lens and replacing it with an artificial lens.
Step-by-step explanation:
Cortical cataracts progress by slowly increasing in size and severity over time. Initially, small areas of the lens become cloudy, causing a gradual decline in vision. As the cataract progresses, more areas of the lens become affected, leading to further vision impairment.
One of the main causes of cortical cataracts is repeated exposure to UV-B radiation, which can be found in sunlight. This can cause damage to the lens, resulting in the clouding that characterizes cataracts.
Treatment for cortical cataracts typically involves surgically removing the clouded lens and replacing it with an artificial lens. This procedure can help restore clear vision and improve the individual's quality of life.