What causes dry eyes and blurred vision?

Aug 21, 2024 Source: Cainiu Health
Disease description:

My eyes have been feeling dry lately, and my vision has become somewhat blurry, especially after prolonged computer use. What's causing this? Is it due to overuse of the eyes or is there something wrong with my eyes?

Doctor's answer (1)
Dr. Wang Shuai

Dry eyes and blurred vision are common visual problems that may be caused by various factors.

1. Prolonged eye use: Especially when using electronic devices such as mobile phones and computers, it is easy to cause eye fatigue, leading to insufficient tear secretion and resulting in dryness and blurred vision. It is recommended to develop good eye-use habits, avoid excessive eye strain, and take appropriate rest breaks.

2. Dry eye syndrome: Dry eye syndrome is the most common cause. It refers to insufficient tear secretion or reduced stability of the tear film, resulting in dryness, irritation, foreign body sensation, and fluctuating vision on the eye surface.

3. Refractive errors: Conditions such as myopia (nearsightedness), hyperopia (farsightedness), or astigmatism can also lead to blurred vision. These conditions usually require correction with properly prescribed eyeglasses or contact lenses.

4. Corneal diseases: Such as keratitis and corneal ulcers, these conditions can affect the transparency of the cornea and consequently impair vision.

5. Cataracts: With aging, the lens gradually becomes cloudy, forming cataracts, which leads to symptoms such as blurred vision and reduced color perception.

6. Diabetic retinopathy: Long-term high blood sugar levels in diabetic patients can damage the blood vessels of the retina, causing vision loss and even blindness.

Dry eyes and blurred vision may be caused by eye fatigue, dry eye syndrome, or ocular inflammation. It is recommended to seek medical examination at a hospital immediately.