Onset of anisocoria: Old patient photographs often help to date anisocoria that is unaccompanied by other symptoms. Physical. Key aspects of the physical examination (eg, pupil size in light, pupil size in the dark, pupil reactivity to light and dark) help to localize the problem. Additional historical features such as pain, diplopia, ptosis, numbness, ataxia, dysarthria, or weakness help generate a differential diagnosis.
Mount Agung last erupted in 1963 (see information box in this article). This was one of the largest 20th century eruptions anywhere in the world. Historical eruptions of the volcano are poorly recorded, but there was certainly one in the 1820s.
On December 20, 2016, at about 3:35 PM AKST (00:35 UTC, December 21), Bogoslof volcano began an explosive eruption that lasted about 30 minutes and produced a detached ash cloud that rose to 34,000 ft (10.3 km) above sea level, as reported by several pilots.