What causes dryness and itchiness in the eyes?

Eye irritation and itching may be related to eye fatigue, allergic conjunctivitis, dry eye syndrome, or other causes.

1. Eye fatigue: Staring at computers or electronic devices for prolonged periods and unhealthy eye-use habits can lead to symptoms such as eye dryness and itching. This condition generally does not require special treatment; symptoms can be relieved by getting adequate rest and avoiding excessive eye strain.

2. Allergic conjunctivitis: Individuals with allergic constitutions may develop an acute hypersensitivity reaction on the conjunctiva upon exposure to external allergens, resulting in the aforementioned symptoms. It is recommended to use antiallergic eye drops such as naphazoline and pheniramine ophthalmic solution or sodium cromoglicate eye drops under medical guidance to alleviate symptoms.

3. Dry eye syndrome: As people age or due to chronic sleep deprivation, the eyes may produce insufficient lubricating fluid, leading to dry eye syndrome, which can also cause eye dryness and itching. It is recommended to use medications such as sodium hyaluronate eye drops or fluorometholone eye drops under a doctor's supervision to improve symptoms.

In addition, chronic conjunctivitis or vitamin deficiencies in the body can also cause eye irritation and itching. If symptoms persist for a prolonged period without improvement, it is advisable to seek timely medical evaluation at a hospital to identify the underlying cause and receive appropriate treatment.