MIDRIAZ

MIDRIAZ (Mydriasis), vase shudani gavharak binobar oseb yoftani asabi simpatii muharriki chashm yo gardan va falaji mushake, ki gavharakro khurd mekunad (sfinkteri gavharak); bemori metavonad dar natijai spazmi mushaki farrokhkunandai gavharak (dilatatori gavharak) niz ba vujud oyad. M.-i dorui binobar tasiri baze vasoiti tabobat sar mezanad: hangomi ba chashm chakondani mahluli atropin, skopolamin, istemol kardani doruhoi belladona va g. Sababi M.-i patologi baze bemorihoi bosira (mas., glaukoma), kontuziyai guzai chashm yo ogozi bemorihoi harommagz va mayna meboshand. Dar surati bo ikhtiloli tatobuq hamroh shudani M. nerui bosira zaf yofta, khondanu navishtan dushvor megardad. Muolijai M. boyad ba raf namudani sababi on ravona shavad.