Doctors' plot
During World War II, from 1941 to 1944, he worked at evacuation-hospitals, where he saved the sight of thousands of wounded soldiers. He then worked as the senior scientist for the Turkmenistan Medical Institute. In 1937, he defended the candidate dissertation on the topic of "Determination of localized changes within the eye depth", and in 1958, after multiple attempts to overcome antisemitism, particularly having complications related to the Doctors' plot, he defended a doctorate dissertation titled "Clinical Partial Transplantation of the Cornea". In 1961 he earned the title of Professor. He emigrated to the United States in 1990, and died October 24, 1995, in Flushing, Queens, New York.