thanks for choosing healthcaremagic.See glucoma is a condition in which pressure in eye increases.This can lead to many problems including detachment of retina
the curtain of eye and lead to vision loss
.If the pressure can be controlled with medications then you have to go for surgery.There are always risk in patients having blood pressure and diabetes
but in case of surgery you always have to weigh risk benefit ratio.So if you want you can take second opinion
and follow the advise.Make sure his blood pressure and diabetes remains under control.