Patient's question:
The child was born not long ago, and their eyes always tear up, and they also love to cry. What is the principle behind the construction of the standard logarithmic visual acuity chart?Doctor's answer:
The dynamometer is designed based on the principle of visual angle. The visual angle refers to the angle formed by the light rays emitted from two external points as they pass through the nodal point inside the eye. Under normal circumstances, the human eye can distinguish the smallest distance between two points, which corresponds to the minimum visual angle, known as the one-minute angle. The visual acuity chart is designed based on this one-minute angle unit.According to your description, it is generally possible to take the traditional Chinese medicine Shidu Yeguang Wan to regulate the condition. This can help supplement nutrients and trace elements, and a diet that is easy to digest and absorb should be followed. It is also important to avoid harmful stimuli. Surgical treatment is typically recommended after the age of 18.