ICD-11 classes
09 Diseases of the visual system
Disorders of refraction or accommodation
9D00 — Disorders of refraction
9D00.2 — Astigmatism

ICD-11 9D00.2 — Astigmatism

Unequal curvature of the refractive surfaces of the eye. Thus a point source of light cannot be brought to a point focus on the retina but is spread over a more or less diffuse area. This results from the radius of curvature in one plane being longer or shorter than the radius at right angles to it.

The diagnosis includes nothing.

The diagnosis excludes nothing.

It has no clarifying diagnoses.