Short-sightedness. Someone with short-sightedness can see near objects clearly, but cannot focus properly on distant objects. This is caused by the eyeball being elongated, so that the distance between the lens and the retina is too great.
Radon Symptoms. What are the symptoms of radon poisoning? Since radon is the #2 cause of lung cancer in the U.S., respiratory ailments are the most likely signs of radon-related distress. A persistent cough, hoarseness, breathing difficulties, and recurring respiratory infections are all possible indications of radon poisoning.
Health effects from radon exposure include lung cancer, and overall damage of lung tissue. The onset of lung cancer can take many years and may not be immediately apparent. Smoking combined with radon exposure can also increase the chances of lung cancer and is especially serious as a health risk.