Patient's question:
The baby was diagnosed with severe astigmatism a week ago and was prescribed dilating drops. A follow-up examination one week later revealed a downward gaze. Previously, it was always said that only astigmatism was present, without any downward gaze. OD 2.5, OS 2.0Doctor's answer:
Astigmatism refers to the condition where light entering the eye cannot form a single focus on the retina but instead forms two horizontal focal lines inside the eye. The main cause of astigmatism is the difference in refractive power between the front and back surfaces of the cornea and the lens, which has a certain hereditary tendency. When astigmatism is present, there are noticeable symptoms of visual fatigue, such as headaches, eye pain, unstable vision, and difficulty maintaining focus on close-up tasks. Additionally, double vision may occur. After dilation to relax the ciliary muscles, the adjustment is corrected, resulting in downward vision.