Share to: 1  Defining the Ethyl Group The ethyl group is a group of compounds that has a significant contribution in the production of other compounds. Defining the Ethyl Group The ethyl group is a group of compounds that has a significant contribution in the production of other compounds. 2  The new compounds produced have various applications from whâ¦.
A Sharecare Ad Target User , Administration, answered. Glaucoma is a very common eye disease, but not everyone who has symptoms such as elevated eye pressure will develop it. The rate of incidence is high, with about 3 million people in the United States living with the disease. Glaucoma is most likely to occur in anyone over the age of 60.
There are four main types of glaucoma: 1  chronic open-angle glaucoma â the most common type which often has few symptoms. 2  acute angle-closure glaucoma â which often has severe symptoms. 3  secondary glaucoma â caused by other conditions or eye treatments.  developmental glaucoma â a rare condition affecting young babies.