Louis Émile Javal of text, but make short rapid movements (saccades) intermingled with short stops (fixations). Javal's observations were characterised by a reliance on naked-eye observation of eye movement in the absence of technology. Javal's interest in strabismus was due to the disorder affecting his father and sister. Javal himself had heterochromia. At middle-age Javal developed glaucoma, and by 1900 was totally blind. He was a friend of Ludwik Łazarz Zamenhof (1859-1917), the inventor of Esperanto, and he stressed the importance of learning this language by the blind. In addition, he was involved in social reform issues that included education and circumstances surrounding
Ludwik Kowalski Ludwik Kowalski Ludwik Kowalski (born 1931) is a Polish-American physicist, anti-communist author, and professor emeritus of Montclair State University in Montclair, New Jersey. Kowalski was born in Poland. His parents, members of the Polish Communist Party (the precursor of Polish United Workers' Party), decided to emigrate to the Soviet Union in 1932. In Moscow, they continued in their careers as an engineer and nurse. His father was arrested in the night during the Great Purge in 1938 as an "enemy of the people," never to be seen again by his family. Kowalski and his mother lost their home and lived