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 Konarzewski-junior Wisła ("Muzeum Beskidzkie w Wiśle") and in the artist’s house and studio in Istebna in Cieszyn Silesia. Ludwik Konarzewski-junior Ludwik Konarzewski – junior (April 20, 1918 in Buzuluk – January 23, 1989 in Cieszyn) was a Polish painter, sculptor and teacher of fine arts who worked in Upper Silesia and Cieszyn Silesia. A square in Rydułtowy is named after him. Konarzewski owed his primary artistic education to his father, Ludwik Konarzewski – senior. He started his studies (in painting) at the Academy of Fine Arts in Kraków in 1938, and finished in 1948, being interrupted by the Second World War.