Corneal softening is a common corneal lesion, mostly caused by vitamin A deficiency, such as insufficient vitamin A intake, malabsorption, and excessive consumption. 1. Inadequate intake of vitamin A: poor food preparation and nutritional disorders during artificial feeding or weaning of infants and young children, recognizing that it may be due to prolonged and consumptive diseases, lack of hygienic knowledge, and inappropriate contraindications, such as toxic dyspepsia, measles, and pneumonia, which lead to insufficient intake of vitamin A and corneal chondroplasia. 2. Malabsorption of vitamin A: If the patient suffers from digestive tract diseases, such as gastroenteritis, dyspepsia, dysentery, etc., resulting in vitamin A can not be well absorbed. In addition, impaired absorption of lipids in the digestive tract can also lead to vitamin A deficiency, causing patients to develop corneal softening. 3. Excessive consumption of vitamin A: If the patient’s growth and development is too fast or consumes too much during the period of illness, the demand for vitamin A is high, thus forming a state of deficiency, and the patient may also have corneal softening. It is recommended that patients with corneal softening consult a doctor in time to assess their condition and follow the doctor’s instructions for reasonable treatment.