What causes dry and blurry eyes?

Dryness and blurred vision in the eyes may be caused by factors such as eye strain, environmental irritation, dry eye syndrome, conjunctivitis, or cataracts. It is recommended to seek medical attention promptly, identify the underlying cause, and receive symptomatic treatment under the guidance of a qualified physician. Specific analysis is as follows:

1. Eye strain

Prolonged reading or driving may lead to eye fatigue, resulting in dryness and blurred vision. It is advisable to manage screen time wisely and take regular breaks—ideally every 50 minutes—to rest the eyes, such as closing them or gazing into the distance.

2. Environmental irritation

Remaining for extended periods in dry environments or areas with severe air pollution can accelerate tear evaporation, potentially causing the aforementioned symptoms. It is recommended to use an air purifier to maintain appropriate indoor humidity or wear protective eyewear to minimize eye irritation.

3. Dry eye syndrome

This is a pathological condition caused by instability of the tear film, possibly related to impaired lacrimal gland function or insufficient tear production. Common symptoms include dry eyes, easy eye fatigue, and blurred vision. Patients are advised to use medications such as sodium hyaluronate eye drops, Jinzhen eye drops, or fluorometholone eye drops as prescribed by a doctor.

4. Conjunctivitis

Typically caused by bacterial infection or allergies, patients may experience redness, swelling, pain, and increased eye discharge. These inflammatory responses can also irritate the eyes, leading to dryness and blurred vision. Patients should follow medical advice and use medications such as chloramphenicol eye drops, ganciclovir eye drops, or ofloxacin eye drops.

5. Cataracts

A common visual impairment disorder, possibly associated with trauma, malnutrition, or other factors. Typical symptoms include dry eyes and blurred vision. Patients are advised to seek timely medical care and consider cataract phacoemulsification surgery.

In daily life, patients should maintain good eye hygiene, drink plenty of warm water, avoid staying up late, and gently massage the eyes, which may benefit recovery.