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
Mark Zamenhof Later he became state cencurist of the texts in the languages Hebrew and Jidda and those positions were received only by the most reliable personalities. Simultaneously that was breakthrough in the officiant hierarchy. According to Z. Weinstein Mark Zamenhof was a secret adviser . Probably Weinstein erred, because the secret adviser was very high, third rank in the officiant ranks, that matched to the rank of general in the army. Zamenhof probably had the 9th rank "title adviser", that matches to the officer rank in Polish army. Prove that the fact the reminiscences according to that Mark, with pride, carried