In irregular astigmatism, the principal meridians are not perpendicular. Most astigmatism is regular corneal astigmatism, which gives the front surface of the eye a football shape. Irregular astigmatism can result from an eye injury that has caused scarring on the cornea, from certain types of eye surgery or from keratoconus, a disease that causes a gradual thinning of the cornea. More Info. Save 10-30% off your eye exam using the BenefitsPalâ„¢ card.

Astigmatism is an optical defect in which vision is blurred due to the inability of the optics of the eye to focus a point object into a sharp focused image on the retina.

Irregular astigmatism is a type of eye disorder in which the surface of the cornea is marred by peaks, ridges, valleys, and other abnormal shapes.

Irregular astigmatism is far less common and is associated with abnormal conditions affecting the cornea (for example, keratoconus). This condition is more effectively treated with rigid gas permeable contact lenses or corneal procedures. Corrective lenses (eyeglasses or contact lenses). Astigmatism correction can usually be easily incorporated into eye glasses.

irregular astigmatism n. Astigmatism in which different parts of the same meridian have different degrees of curvature.

A Rational Approach to Irregular Astigmatism Irregular astigmatism can be a source of frustration with toric IOLs. Here's how to identify and treat the cause.

Looking for online definition of regular astigmatism in the Medical Dictionary? regular astigmatism explanation free. What is regular astigmatism? Meaning of regular astigmatism medical term. What does regular astigmatism mean? . irregular astigmatism that in which the curvature varies in different parts of the same meridian or in which refraction in successive meridians differs irregularly.

Regular Astigmatism is a normal and very frequent visual problem that is easily and accurately corrected with eye glasses or conventional contact lenses. Irregular Astigmatism is not normal and is

Small amounts of astigmatism can be acquired any time in life and are, in fact, very common. It often does not require correction. Treatment. Correction is not difficult if the distortion proceeds across the cornea in a regular direction. . If, however, the distortion is irregular, only reshaping the cornea will correct the problem. This is usually done through the use of hard lenses or by replacing it with donated human corneal tissue.