- Glaucoma contents
Glaucoma symptoms
Glaucoma usually have no warning signs. The effect is so gradual that you may not notice a change in vision until the condition is at an advanced stage.
As an exemption, acute angle-closure glaucoma can cause severe eye pain, redness, blurred vision, and other symptoms such as headache and feeling of sickness due to sudden increase of eye pressure. (In this case, immediate treatment is needed.)