I am really pleased with the personal care and service provided by the doctors and staff from Shreya Eye Care Centre. I can recommend their service to you.
What is Glaucoma?
Glaucoma is an important cause of blindness. Glaucoma is a GROUP of disorders. What they all have in common is an irreversible damage to optic nerve with most cases having an increase in the pressure inside the eye.
The optic nerve receives light from the retina and transmits impulses to the brain that we perceive as vision. The optic nerve is made up of a bundle of nerve fibres which sends signals to the brain. Changes in intraocular pressure and other factors cause damage to nerve fibres, which initially causes decrease in visual fields, central vision is usually preserved till end stage—hence the term silent killer for glaucoma as the patient is not aware of presence of glaucoma in many cases till it reaches end stage—loss being irreversible.
How do I know if I have glaucoma?
Unfortunately glaucoma is typically associated with painless and progressive loss of vision that may escape detection by the patient. This once again stresses the importance of a thorough eye history and examination, especially in patients with a family history of glaucoma. Only one type of glaucoma called angle-closure glaucoma is associated with a red, painful eye with blurred vision and sometimes nausea and vomiting. This is due to very high pressures resulting FROM a block in the drainage system of the eye. Most patients at risk for this type of glaucoma have structural differences in their eye which could be identified prior to an attack and preventative treatment could be performed.