noun
- A refractive defect of the eye in which the cornea or lens has an irregular shape, causing blurred or distorted vision at all distances.
Usage: Medical/optical term; Plural form of astigmatism; Common eye condition
Examples
- Many people have mild astigmatisms that go undetected without a proper eye exam.
- The optometrist diagnosed several astigmatisms in her patients during the screening.
- Corrective lenses can help manage astigmatisms by focusing light properly on the retina.
- Some astigmatisms are present from birth, while others develop over time.
- The doctor explained that astigmatisms occur when the eye's surface is not perfectly spherical.