The person may notice changes to their central vision and how they see colors. Swelling occurs in the macula, which is the part of the eye that enables detailed, central vision. Macular edema: This is a serious complication of diabetic retinopathy.changes in consciousness or mental state.It can happen for a range of reasons, many of which are potentially life threatening. Cerebral edema: This occurs in the brain.It is a serious condition, it can be a medical emergency, and it can lead to respiratory failure and death. This can result from congestive heart failure or acute lung injury. Pulmonary edema: This occurs when excess fluid collects in the lungs, making breathing difficult.Symptoms include swelling, puffiness, and difficulty moving certain parts of the body. Peripheral edema: This affects the feet, ankles, legs, hands, and arms.Each one can indicate a range of further health conditions. However, some research suggests that hyperbaric oxygen therapy can increase the risk of pulmonary edema. Oxygen delivered through the nose may improve poor vision associated with diabetic macular edema, according to older research from 2004. For example, an individual with cardiogenic pulmonary edema may need additional oxygen if they have difficulty taking in enough.
Oxygen may be useful for treating some types of edema.
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