Astigmatism

Astigmatism

Astigmatism
An optical system with astigmatism is one where rays that propagate in two perpendicular planes have different foci. If an optical system with astigmatism is used to form an image of a cross, the vertical and horizontal lines will be in sharp focus at two different distances. The term comes from the Greek α- (a-) meaning "without" and στίγμα (stigma), "a mark, spot, puncture".

Astigmatism - List of case studies

List of Diseases and Conditions

Asthenospermia Asthma Asthmatic bronchitis Astigmatism Astrocytoma Asymptomatic not common atrial flutter ...

case_study_short_summary

tests, and has always worn glasses to correct astigmatism. In 2003, she noticed a deterioration in her sight and had an ...

Retinitis Pigmentosa

tests, and has always worn glasses to correct astigmatism. In 2003, she noticed a deterioration in her sight and ... Related Conditions: Retinitis Pigmentosa , astigmatism , vitreoretinal interface syndrome , lung malignancies, ...

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