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
Jan Ludwik Popławski Jan Ludwik Popławski Jan Ludwik Popławski (17 January 1854 in Bystrzejowice Pierwsze – 12 March 1908 in Warsaw) was a Polish journalist, author, politician and one of the first chief activists and ideologues of the right-wing National Democracy political camp. Popławski entered the University of Warsaw in 1874. As a student he belonged to patriotic political organization Confederation of Polish Nation (Konfederacja Narodu Polskiego). In 1878 he was arrested by Russian authorities. Released in 1882, Popławski returned to Warsaw and began to write in the newspaper "Prawda" ("Truth") under the pen name "Wiat". From 1886, he worked for the weekly