Visual symptoms that should wear glasses

1.Myopia (Myopia)

Symptoms: Can't see things that are far away (e.g., can't see the front board, can't read the signposts), but can also see things that are nearby.

Cause: The eyeball is too long, or the cornea has too much curvature, causing light to strike before reaching the retina.

2. Hyperopia

Symptoms: There is usually eye fatigue, headache, or pain in the eyes when you need to look closely for a long time. In very large cases, you may not see closely or far.

Cause: The eyeball is too short, or the cornea is too flat, causing the light to strike.

3. Astigmatism

Symptoms: Overlooking, blurring, or seeing a sketchy shadow around a letter, either looking close or far, often allergic to the lights at night (seeing the lights break into lines)

Cause: The curvature of the cornea in each alignment is not equal (like a soccer ball that is crooked into a rugby ball), giving multiple light points.

4. Presbyopia

Symptoms: Not looking at the letters on your phone or the book, having to stretch your arms far to read, usually starting around the age of 40.

Cause: Caused by natural eye lenses, start to lose elasticity, and the function of the eye muscle deteriorates with age.

5. Strabismus or strabismus

Symptoms: The two eyes are not in parallel.

Eyeglasses: In some cases, ophthalmologists prescribe prism glasses to help single images and help train eye muscles in children.