A: The USDA created the Plant Hardiness Zone Map to help gardeners select plants that will survive in their particular climate zone. The zones are based on the average annual lowest winter temperature in a location, and each numeric zone spans 10 degrees (F) and is further divided into 5-degree âaâ and âbâ sections.
Secondary Glaucoma. Secondary glaucoma is often a side effect of injury or another eye condition, such as cataract or eye tumors. Medicines, such as corticosteroids, may also cause this type of glaucoma. Rarely, eye surgery can cause secondary glaucoma.laucoma is not a singular eye disease, but is instead a term for several eye conditions that can damage your optic nerve. The optic nerve is the nerve that supplies visual information to your brain from your eyes. Glaucoma is usually (but not always) the result of abnormally high pressure inside the eye.
In brief: It can. There are 2 main types of glaucoma, closed-angle (acute) and open-angle (chronic). Acute glaucoma is less common, but can present with sudden eye pain due to an increase in intraocular pressure. Chronic glaucoma commonly does not present with eye pain as the process of the disease is more gradual. Be sure to see your doctor if you are experiencing any eye symptoms or are concerned about glaucoma.