3 doctors weighed in:

How can one have both astigmatism and far-sightedness?

3 doctors weighed in
Dr. Andrew Shatz
Ophthalmology
2 doctors agree

In brief: Architecture

Think of the eye as a sphere; everyone has a slightly different size sphere - some longer and some shorter. Farsighted individuals have shorter eyeballs and cannot get far enough away from objects to see them clearly.
Astigmatism describes how "un-round" the front window (cornea) is. The more oblong the cornea, the more distorted images are, regardless of whether you are farsighted or nearsighted.

In brief: Architecture

Think of the eye as a sphere; everyone has a slightly different size sphere - some longer and some shorter. Farsighted individuals have shorter eyeballs and cannot get far enough away from objects to see them clearly.
Astigmatism describes how "un-round" the front window (cornea) is. The more oblong the cornea, the more distorted images are, regardless of whether you are farsighted or nearsighted.
Dr. Andrew Shatz
Dr. Andrew Shatz
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David Miller
Family Medicine

In brief: Different things

Farsightedness is caused by the globe of your eye too short to focus the image on the retina.
Astigmatism is caused by your cornea being off-round on one or more planes.

In brief: Different things

Farsightedness is caused by the globe of your eye too short to focus the image on the retina.
Astigmatism is caused by your cornea being off-round on one or more planes.
David Miller
David Miller
Answer assisted by David Miller, Medical Student
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