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LAZER

lazerLAZER dar tib, dastgoh baroi hosil kardani dastai boriki energiyai balandshiddati afkanishoti monokhramii shuo. L.-ro soli 1955 N. G. Basov, A. M. Prokhorov (IJSHS) va J. Tauns (SHMA) ikhtiro kardand (baroi in s. 1964 bo Mukofoti nobeli sarfaroz gardidand). Navhoi gunoguni L. mavjudand: gazi, moei va sakht. Afkanishoti lazeri metavonad befosila va bafosila shavad. Dar tibbi kliniki – oftolmologiya, jarrohi, travmatologiya, omosshinosi, stomatologiya va g. L.-i gunogunro istifoda mebarand.
Tarzi kori shuoi L.- i ba on asos yoftaast, ki energiyai ba yak dastai shuo jamshuda harorati joi shuorasandaro baland mebardorad va koagulyatsiya (lakhtabandi)-i boftaho yo ikhtiloli onhoro ba vujud meovarad. Hususiyati tasiri biologii lazeri ba navi L., iqtidori energiya, khosiyati on, sokht va sifathoi biolgii boftai shuogiranda vobasta ast. Dastai boriki shuoi puriqtidor imkon medihad, ki dar yak hissai soniya joi qatiyan muayyani bofta az nuri L. koagulyatsiya shavad. Ba gayr az koagulyatsiya gashtan, zeri tasiri afkanishoti balandiqtidor tagiyr yoftani boftaho niz mumkin ast. In holat dar natijai az harorati baland favran ba shakli gaz guzashtani moei bofta surat megirad. Bo nuri L. biduni khunravi boftahoro buridan mumkin ast. Natijai tasiri afkanishoti lazeri ba navi bofta, rang (pigmentatsiya), gafsi, zichi va darajai bo khun tamin budani on niz vobasta ast. Iqtidori afkanishoti lazeri har qadar ziyod boshad, tasiri vay hamon qadar beshtar meshavad.
L.-ro avvalin shuda dukhturoni chashm bo maqsadi koagulyatsiyai shabakiyai chashm dar asnoi kuchidan va kanda shudani on, inchunin baroi bartaraf namudani omoshoi khurdi dokhili chashm va sokhtani surokhii optiki hangomi kataraktai takrori istifoda burdaand. Bo yorii neshtari lazerii hozirazamon omoshoi gunogunro meburand, onro hangomi jarrohii magzi sar, shush, jigar va rudaho kor mefarmoyand. Istifodai chunin «teg» khususan hangomi jarrohii uzvhoe, ki raghoi ziyodi khunguzar dorand, ba maqsad muvofiq ast (hangomi bo neshtari oddi buridan, khuni bisyor meravad). Bo tegi L.-i boftahoi sukhtagi, zakhmhoi dershifo, reshho, joyhoi fasoddor va g.-ro buridan mumkin ast. Afkanishoti L.-iro bo maqsadhoi tashkhis, muoinai raghoi khunguzar, aksgirii uzvhoi daruni va g. niz istifoda mebarand. Dar in mavrid afkanishoti kamiqtidor kor farmuda meshavad. Bo yorii L. tahlili morfologi, khimiyavi va spektrii mabdahoi biologiro meguzaronand.
Vaqti istifodai L. qoidahoi bekhatarii korro boyad rioya kard.

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