Could you tell me what are all the possible leads to for me being a "glaucoma suspect"?

Few things: High eye pressure, family history, and large cupping of the optic nerve. Visual field test may show borderline changes, but nothing definitive.

Suspect: If you are given the diagnosis of a 'glaucoma suspect, ' it just means that someone is concerned that either your optic nerve looks as if might be damaged from glaucoma, or that your eye pressures are higher than normal. If you have certain characteristics or demonstrate progressive nerve damage over time, you will then be diagnosed with glaucoma.