Itchy eyes may be related to excessive eye use, medication factors, blepharitis, etc. 1. Excessive use of eyes: women sitting on the moon, due to the small range of activities often long time watching TV or playing cell phones, resulting in excessive use of eyes, the eyes are not moistened by tears, so there will be itchy eyes. 2. Drug factors: the patient may be using certain drugs, such as pyrimethamine potassium eye drops, this drug has certain side effects, there will be eye itching. 3. Blepharitis: may appear during pregnancy, such as visual fatigue, caused by the eyelid margin sebum secretion, resulting in inflammation of the eyelid margin, the patient consciously eye itching, burning sensation and other symptoms. It is recommended to consult a doctor in time, follow the doctor’s instructions and then further relevant examination, with the help of the doctor to clarify the cause, and targeted treatment or treatment.