PCOS is a syndrome of ovarian dysfunction along with the cardinal features of hyperandrogenism and polycystic ovary morphology.

Polycythaemia can be defined as a venous haematocrit of 65% or more OR a venous hemoglobin concentration in excess of 22 g/dL.

Glaucoma is defined as an optic neuropathy with progressive optic nerve head damage and characteristic visual field changes with intraocular pressure as a modifiable risk factor.