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.
Emphysema is a condition that forms part of chronic obstructive pulmonary disease (COPD) and involves the enlargement of the air sacs in the lung. 2-4. The alveoli at the end of the bronchioles of the lung become enlarged because of the breakdown of their walls.he biggest known cause or risk factor for emphysema-and for COPD-is smoking.4,6-8 Cigarette smoking is responsible for around 90% of cases of COPD.7 However, COPD will develop only in smokers who are genetically susceptible-smoking does not always lead to the disease.8. Smoking is the leading cause of emphysema.