As such some of what we see is just the brains interpretation of sensations from the eye structure and the pressure applied to it. Try rubbing your closed eyes and you will see what I mean. Always remember that the number one job of the brain is pattern recognition.
Emphysema is a form of chronic (long-term) lung disease, usually caused by smoking. Because of lung damage, people with emphysema have difficulty blowing air out. The major symptom of emphysema is shortness of breath.
Why COPD Emphysema Symptoms arise? COPD patients show the symptoms of disease due to inflamed and infected alveoli inside lungs. The pulmonary system gets damaged due to regular smoking and addition of toxins on the lung area. The condition of COPD might get chronic with time as the disease is incurable.