If you live in a large city, you might notice that your urgent care centers are pretty booked, especially on the weekends. If you're an adult, you can likely entertain yourself for the time that it takes you to be seen. If you're an adult with kids, you might notice that your kids, especially if they are sick, cannot handle the wait. If you have two or more kids, they'll probably fight with each other.
A cataract occurs when the lens of the eye becomes clouded by protein deposits. The clouding causes a decline in clear vision.
There are three types of cataracts. They include subcapsular cataracts, nuclear cataracts, and cortical cataracts. Subcapsular cataracts develop at the back of the lens. Nuclear cataracts appear in the center or nucleus of the lens. A cortical cataract begins around the edges of the lens and encroaches upon the center of the eye.