Sharp eye pain is often caused by dust or eyelashes, but it can also indicate more serious conditions such as keratitis, uveitis, or glaucoma.

Itching at the corner of the eye is often due to allergies or dry eyes, but it can also sometimes signal conjunctivitis or lacrimal duct infection, requiring treatment.

Placing the screen too close, working continuously without breaks, infrequent blinking, or wearing incorrect prescription glasses are common habits that quickly lead to eye strain when using a computer.

Blurry vision after waking up is often due to dry eyes, especially when sleeping under a fan, but sometimes it can also be related to corneal disease or diabetes.

Optic neuritis, brain tumors, and transient ischemic attacks can cause blurred vision, often mistaken for common eye conditions.

A 32-year-old reader, Quang Bao, asks about occasionally seeing one object as two, especially when reading or looking into the distance. He wonders if this condition is dangerous and when medical consultation is necessary.