Glaucoma usually happens when extra fluid gradually increases pressure in the eye and causes ... Your test results are compared to a normal visual field chart to identify areas of vision loss ...

Background Normal tension glaucoma (NTG) is commonly treated with anti-glaucoma medications. Recently, selective laser trabeculoplasty (SLT) has been demonstrated to lower the intraocular pressure ...

From Dr. Sharma, "Glaucoma may develop even when vision seems perfectly normal. Sometimes ... test takes an intraocular reading, and a visual field test checks peripheral vision.