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.
Ground effect is a term used to described the reduced drag and increased lift experience when an aircraft is flying close to the groundâas is the case, for example, during landings and takeoffs; the reduced drag associated with ground effect is the result of the ground interfering with the formation of the wing tip vortices.