Can you eventually go blind from astigmatism?

Astigmatism is a problem of how the eye focuses light typically caused by a defect in the lens, resulting in distorted images. Astigmatism is not an eye disease or health problem. While it can cause blurred vision, eye strain, and headaches, particularly after prolonged reading, it does not cause blindness.

What type of lens corrects astigmatism?

Toric contact lenses provide more comfort for patients with astigmatism and, according to the American Optometric Association, they also provide a “high degree of accuracy and producibility.” Toric lenses are made to bend light in a direction to correct astigmatism.

What is sphere on eye prescription?

Sphere (SPH) – The term “sphere” means that the correction for nearsightedness or farsightedness is spherical, equal in all meridians of the eye. This indicates the amount of lens power, measured in diopters (D), prescribed to correct nearsightedness or farsightedness.

How do I know if my astigmatism is severe?

The thing you want to pay attention to is the number. The higher the number after the plus or minus, the more severe the astigmatism. Note: The cylinder may be written as a plus or a minus, but that doesn’t actually make any difference in how bad the prescription is, ophthalmologists use a “+”, optometrists use a “-“.

What does the Axis number on an astigmatism mean?

If you think of astigmatism as an oval shape, it makes sense that the oval might be turned any direction. The axis number then, tells you the orientation of the astigmatism. The number is in degrees, it doesn’t have anything to do with how severe the astigmatism is, just how it is situated on your child’s eye.

What do the numbers on the axis of the eye mean?

The axis is defined with a number from 1 to 180. The number 90 corresponds to the vertical meridian of the eye, and the number 180 corresponds to the horizontal meridian. If you are due for new eyeglasses in Tucson, contact Eye Associates of Tucson at 520-888-6600 or website to schedule an eye exam with Our doctors.

How does the shape of your eyeball affect your vision?

The shape of the actual eyeball will affect vision. It is possible for the eyeballs to be either shortened or elongated. An elongated eyeball is also referred to as myopia or nearsightedness. With this condition, people have difficulty seeing objects that are far away.