A member asked:

Oct shows nerve tissue thinning. no visual field loss. 1 dr. said 30% optic nerve damage & 2 others say not that much. can percentage be relied on?

6 doctors weighed in across 2 answers

No: The grading of the amount of cupping or loss of nerve fibers in an optic nerve can be very subjective. Some optic nerves are just variations of normal, and not suffering from glaucoma. Has a visual field test been ordered to look for visual field loss, a more reliable sign of glaucoma.

Answered 9/18/2017

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Need to follow : Patients can lose nerve fiber layer before it produces visual field or visual acuity is affected. You need to be followed over time looking at all parameters: visual acuity, intraocular pressure, nerve appearance, oct and visual field an past medical history. Initial oct are compared to age-matched controls. Your optic nerve could be tilted or outside the normal algorithms. Talk to your doctor.

Answered 10/4/2017

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