This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Glaucoma, Subject name: Ophthalmology
Chronic simple glaucoma features are : 
Select and explain. 
A. Raised IOP with no optic nerve damage., B. Raised IOP with optic nerve damage., C. Perimetric damage with no optic nerve changes., D. Pink disc.
B: Raised IOP with optic nerve damage.
Answer: B: Raised IOP with optic nerve damage. 
Explanation: Glaucoma definition is CHRONIC OPTIC NEUROPATHY with characteristic visual field changes with IOP increased as major but not the only risk factor. B is correct as raised IOP is the most impoant preventable risk factor. A is wrong as there is no optic nerve damage. This condition is called ocular hypeension. C is wrong as there can be AION , RP and various other diseases that can cause visual field defects and not only glaucoma. D is also wrong as pink disc is seen in hypermetropia and not in glaucoma.