While shingles on the skin can include swelling of the eyelid and conjunctivitis, shingles on the eye itself, called herpes zoster ophthalmicus, can cause something much worse â scarring that can lead to vision loss,
Because the time between two full Moons doesn't quite equal a whole month, approximately every three years there are two full Moons in one calendar month. The next time two full Moons occur in the same month (as seen from the United States) will be July 2015. The most recent blue Moon occurred in August 2012.
Generally, the moon is only full about once every 30 days. This means the blue moon phenomenon can only take place if there is a full moon in the first few days of a month. The last full moon was on July 2. The phenomenon occurs once every two or three years. The last one took place on Aug. 31, 2012.