Information on Glaucoma
Glaucoma (kala motia) is the most common cause of irreversible blindness, asymptomatic until advanced stages
It is a chronic progressive optic neuropathy characterized by raised intra ocular pressure (IOP), optic nerve head (ONH) changes & visual field defects. But many patients have an IOP within normal range and a substantial proportion with normal IOP develop glaucomatous optic neuropathy. Besides raised IOP, other strongly associated factors include greater cup to disc ratio in ONH, thinner central cornea, shallow anterior chamber (A.C), increasing age, family history of glaucoma and diabetes.
Issues in the management of Glaucoma are diagnosing the case at the earliest, even before any substantial structural damage has occurred. As IOP is the only recognizable and controllable cause hence assessing target IOP and controlling it to prevent any subsequent structural/ functional damage is the main stay of therapy. Newer imaging techniques help us provide information that is reproducible and free of inter-observer variability.
At our institute a comprehensive eye check up helps us catch the disease in unsuspecting cases even before the person is aware of symptoms like frequent change of glasses, poor dark adaptation, headache mistaken to be migraine etc.