astigmatism

• حالة طبية تؤثر على الإبصار، سببها غالبًا انحناء غير منتظم في القرنية مما يؤدي إلى عدم وضوح الرؤية؛ وتشير أيضًا إلى عيب مماثل في الأنظمة البصرية حيث لا تتلاقى الأشعة الصادرة من نقطة واحدة في بؤرة واحدة.

A medical condition affecting the eyesight, typically caused by an irregular curvature of the cornea, leading to blurred vision; also refers to a similar defect in optical systems where light rays from a single point do not converge at a single focal point.

غير معدود

1. Eye conditionB2formalmedical

   A common vision condition caused by an irregular curvature of the cornea or lens, leading to blurred or distorted vision.

   اللانقطية

   • The optometrist diagnosed her with astigmatism during the eye exam.
   • People with astigmatism often see lines as wavy or blurry.
   • Corrective lenses can effectively treat astigmatism.

2. Optical defectC1formalscientific

   A defect in a lens or optical system where light rays from a single point fail to meet at a single focal point, causing image distortion.

   عيب بصري

   • The telescope's astigmatism was corrected by adjusting the lens alignment.
   • Astigmatism in microscopes can reduce image clarity.
   • Engineers minimized astigmatism in the camera's optical system.