Below is a list of common conditions. To find a specific condition use the search utility above by entering a key word. Or you may look at our entire list of conditions by using the dropdown list above.
The cornea is the clear covering over the colored part of your eye (the iris) and is responsible for most of the focusing power that enables you to see well. The lens inside of your eye also provides clear vision for reading and other tasks done at a near distance.The retina lines the inside of your eye and acts like film in a camera. Images that go through the cornea and lens must focus directly on the retina for images to appear clear. When an eye is too long, images fall in front of the retina and the result is a blurred image.
The eye is often compared to a camera with the retina being the film. Light focuses directly on the retina if you are not nearsighted, farsighted or have astigmatism. Sharp vision is the result. Having a long eye, short eye or irregularly shaped cornea results in being nearsighted, farsighted or astigmatic.
When an eye is short, images fall in back of the retina and result is a blurred image.
What is Astigmatism?
Astigmatism results when the cornea is not completely spherical like a basketball, but curved like a football. Because the cornea is uneven, light rays cannot focus clearly and visual images are distorted.
Presbyopia (Near Vision & Reading Glasses)
The lens inside the eye changes shape when we look at an object up close. When we focus up close the lens becomes thicker and as we look into the distance, the lens becomes thinner.Presbyopia occurs when the lens inside of the eye loses its flexibility. The symptoms occur around age forty and are a normal aging progress, which include blurred vision with up close tasks such as reading. You may also notice difficulty changing focus from near to far.If you are nearsighted, you may be able to take off your glasses and see better up close. If you are not nearsighted, you will need reading glasses or bifocals to see well up close. This happens to everyone between 40 and 50 years of age.
Why do I need to know about Presbyopia if I am interested in LASIK?
If you are Presbyopic or in your mid 40s and nearsighted, correcting your distance vision with LASIK or PRK may necessitate that you wear glasses for reading up close following the procedure.