An eye blister is a benign growth which can appear on the whites of the eyes or on the cornea itself. There are two main types of eye blister: pinguecula and pterygium.
Before x ray machines were invented, broken bones, tumors and the location of bullets were all diagnosed by physical examination and a doctor's best guess. Patients paid the price of these approaches. Then on November 8th of 1895, a German physics professor Wilhelm Conrad Roentgen made a remarkable discovery.
Wilhelm Conrad RÃ¶ntgen (/ËrÉntÉ¡Én, -dÊÉn, ËrÊnt-/; German: [ËvÉªlhÉlm ËÊÅntÉ¡Én]; 27 March 1845 â 10 February 1923) was a German/Dutch mechanical engineer and physicist, who, on 8 November 1895, produced and detected electromagnetic radiation in a wavelength range known as X-rays or RÃ¶ntgen rays, an achievement that earned him the first Nobel Prize in ...