In some cases, the vitreous gel can peel the retina away from the back of the eye, resulting in a macular hole or retinal tear. This can progress into a retinal detachment if left untreated. Injury or trauma Very occasionally, an injury to the eye or trauma can result in a retinal detachment.
Breathing at higher altitudes might be especially difficult if you have COPD as well as another condition, such as high blood pressure, heart disease, or diabetes. Being exposed to high-altitude conditions for more than several days can also affect the heart and kidneys.
Flying may be a quick and convenient method of getting around, but it does have some drawbacks. Some of the common health problems that affect airplane passengers, for instance, are often the result of a lack of humidity in the cabin air, which can lead to dehydration if you're not careful.