Antioxidant vitamins and minerals do not appear to be useful for prevention. However, dietary supplements may slow the progression in those who already have the disease.Age-related macular degeneration is a main cause of central blindness among the working-aged population worldwide. As of 2020, it affects more than 190 million people globally with the prevalence expected to increase to 288 million people by 2040 as the proportion of elderly persons in the population increases. It is equally seen in males and females and it is more common in those of European or North American ancestry. In 2013, it was the fourth most common cause of blindness after cataracts, preterm birth, and glaucoma. It most commonly occurs in people over the age of fifty and in the United States is the most common cause of vision loss in this age group. About 0.4% of people between 50 and 60 have the disease, while it occurs in 0.7% of people 60 to 70, 2.3% of those 70 to 80, and nearly 12% of people over 80 years old. Signs and symptoms
Early or intermediate AMD may be asymptomatic, or it may present with blurred or decreased vision in one or both eyes. This may manifest initially as difficulty with reading or driving (especially in poorly lit areas).
Inflammation of the bursae may also be caused by other inflammatory conditions such as rheumatoid arthritis, scleroderma, systemic lupus erythematosus, and gout. Immune deficiencies, including HIV and diabetes, can also cause bursitis. Infrequently, scoliosis can cause bursitis of the shoulders; however, shoulder bursitis is more commonly caused by overuse of the shoulder joint and related muscles.Traumatic injury is another cause of bursitis. The inflammation irritates because the bursa no longer fits in the original small area between the bone and the functionary muscle or tendon. When the bone increases pressure upon the bursa, bursitis results. Sometimes the cause is unknown. It can also be associated with various other chronic systemic diseases. Diagnosis
Types
The most common examples of this condition:
Prepatellar bursitis, "housemaids knee"
Infrapatellar bursitis, "clergymans knee"
Trochanteric bursitis, giving pain over lateral aspect of hip
Olecranon bursitis, "students elbow", characterised by pain and swelling in the elbow
Subacromial bursitis, giving shoulder pain, is the most common form of bursitis. Achilles bursitis
Retrocalcaneal bursitis
Ischial bursitis, "weavers bottom"
Iliopsoas bursitis
Anserine bursitis

Treatment
It is important to differentiate between infected and non-infected bursitis. People may have surrounding cellulitis and systemic symptoms include a fever. The bursa should be aspirated to rule out an infectious process.Bursae that are not infected can be treated symptomatically with rest, ice, elevation, physiotherapy, anti-inflammatory drugs and pain medication. Since bursitis is caused by increased friction from the adjacent structures, a compression bandage is not suggested because compression would create more friction around the joint. Chronic bursitis can be amenable to bursectomy and aspiration. Bursae that are infected require further investigation and antibiotic therapy.