Cataracts

The ultraviolet (UV) rays from the sun are thought to be the main cause of the development of cataracts

While wearing UV protecting lenses is a good practice, it might not do much to prevent the development of cataracts

Cataract surgery is the most common surgery in the US

75 is the average age for cataract surgery

Below are images of lenses which are progressively older (left to right) and more cloudy

The cloudy lenses do not allow light to pass through clearly

The main symptoms of cataracts are difficulty with glare (especially when driving at night) and trouble reading small print without really bright lighting

These  videos explain what cataracts are and how they develop

One thing to think about with cataract surgery is what type of implant lenses you would like to get

The standard implants will focus your eyes at the distance as best as possible 

If you have high astigmatism, the standard implants will not correct it, so you will need glasses to see clearly at the distance

Premium lenses can correct astigmatism

Different premium lenses can reduce your need for reading glasses (bifocal intraocular lenses)