What is the vision of a person with glaucoma like?

Glaucoma causes a progressive decrease in the patient’s visual field, and his or her peripheral vision is gradually reduced. It is therefore difficult to notice this gradual loss until the disease is at an advanced stage and the visual field has been greatly and irreversibly reduced.

The myth of people with glaucoma seeing a black tunnel is not true, as the “appearance” of the disease varies depending on each person and the extent to which the visual field is affected. Some patients describe blurred vision, mistiness or blind spots, although they often find it difficult to explain what is wrong and may confuse glaucoma with other eye diseases such as cataracts.
 

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