Common Problems with the Human Eye Essay

Submitted By veralikestrains
Words: 425
Pages: 2

Common Problems with the Human Eye
Presbyopia
When we are young, our eye lenses are soft and flexible and the lens can change shape easily, allowing us to see things in focus both close and far.
However, after the age of forty, our eyes become more stiff and rigid and the lens cannot change shape as easily as it once could. This means it is harder to see things especially when reading or looking at things up close.
Although this is a condition that occurs in most people naturally, there are several cures.
People affected may wear bifocal lenses for long distance as well as reading glasses for seeing up close.
Surgery is also an option, with a procedure called conductive keratoplasty, or CK, which uses radio waves to change the surface of the cornea and can also induce monovision, but the effect is not long-lasting.
No matter which option you choose, presbyopia does progress over time, and your contact lens prescription or eyeglass prescription may increase to keep up with it.
Cataracts
A Cataract is clouding in the eye which affects vision. Most cataracts are also due to ageing. There are four different types of cataracts:
1. Secondary cataract. Cataracts can form after surgery for other eye problems, such as glaucoma. Cataracts also can develop in people who have other health problems, such as diabetes. Cataracts are sometimes linked to steroid use.
2. Traumatic cataract. Cataracts can develop after an eye injury, sometimes years later.
3. Congenital cataract. Some babies are born with cataracts or develop them in childhood, often in both eyes. These cataracts may be so small that they do not affect vision. If they do,…