I was wondering what are all the possible causes for me being a "glaucoma suspect"?

Common ones: Are very thin corneas, high intraocular pressure, unusual or asymmetric optic nerve heads, pigment dispersion syndrome, pseudoexfoliation syndrome, strong family history of glaucoma, history of significant trauma to the eyes, narrow anatomic angles, chronic use of steroids...

Glaucoma suspect: "Glaucoma suspect" just means that some finding about your eye exam leads your eye doctor to be concerned that you may have glaucoma. The most common findings are (1) eye pressures that are considers elevated, (2) optic nerves that look damaged and (3) defects are found on visual field testing.

Some common ones: elevated eye pressure suspicious optic nerve changes such as increased cupping visual field defects in a glaucomatous pattern retinal nerve fiber layer loss positive family history other risk factors such as narrow angles, thin corneas, asymmetrical eyes secondary causes that could lead to glaucoma high myopia with anomalous optic nerves

Suspicion: To be a glaucoma suspect, your eye doc noticed changes in the optic nerve exam that looked suspicious for disease. Sometimes this is optic nerve cup asymmetry, elevated eye pressure, thin corneal pachymetry, and possibly a + family history. Testing should be performed for baseline so that the optic nerve health can be carefully reviewed during periodic exams. If changes noted, treatment started.