Home / Ilm / ASTIGMATIZM

ASTIGMATIZM

astigm01ASTIGMATIZM (Astigmatismus; a – hissachai inkori va stigma – nuqta), nuqsi binishi chashmro guyand, ki dar mavridi on durbini, nazdikbini va dig. illathoi chashm dar yak vaqt zuhur meyobad. Mas., dar binishi amudi chashm durbin, dar binishi ufuqi boshad, mutadil va g. meshavad. In, odatan, ba khamidagii harkhelai qarniya, inchunin to darajae ba khamidagii nodurusti gavharaki chashm vobasta ast. Hangomi A. chizi tobon dar turpardai chashm inikos nameshavad. Manoi A. niz hamin ast, yane on kalimai lotini buda, vujud nadoshtani nuqtai aksro ifoda mekunad. Dar asnoi A. quvvai bosiraro bo linzai makhsusi silindri, bazan faqat bo linzahoi tamosie, ki onro bevosita ba qarniya meguzorand, jubron kardan mumkin ast (nig. Aynak). A.-i bachagon vobasta ba sabzishi onho tagyir meyobad, az in ru har sol badi taftish aynaki muvofiq intikhob kardan lozim. A- i kalonsolon mudom yak khel ast.
Ad.: Neotlojnaya oftalmologiya, M., 2005.

Загрузка...

Dar boramon

Инчунин кобед

planet

ZAMIN – SAYYORAI SISTEMAM OFTOBI

Sababhoi tagyiryobii faslhoi sol. Az kursi tabiatshinosi mo medonem, ki Oftob in markazi sistemai oftobii mo …