Goldman lens ekulondolozeni umbono

Umbono kusinceda ukuba abathanda ubuhle, khangela ngathi ezingaguquguqukiyo ubudala ubathandayo. Ngaphandle kwalo, bekuya kuba nzima ukuba baqonde iziseko inzululwazi ufunde incwadi yakho oyithandayo. Indoda evela umzimba optic ufumana imali eninzi, kodwa libala ngaloo nto, kananjalo, kufuna umbono kunye ingqalelo, ubuncinane amaxesha. Ukwenza uhlolo olubonakalayo umzimba kangangoko kunokwenzeka, esebenzisa Goldmann lens.

Yintoni le

Phambi kokuba kwenye inkqubo, kufuneka ubuncinane ukwazi kancinane ngayo kunye hardware apho kuya kuqhutywa. Kweli nqaku, uza kufumana ntoni na ilens Goldmann. Le yunithi kusetyenziswa ekuphandeni fundus, sobuKristu kwigumbi engile, nangenxa ngokuqaphela eyodwa kubo, yaye laser coagulation kwezakhiwo zabo.

Izixhobo ibandakanya yezibuko ezintathu zijikeleziswe kwi-engile ka 59, 66 no-73 degrees. Oku yezibuko yenza kube lula ngaxeshanye ukuhlola kwiindawo ezahlukeneyo yamehlo, ngokuba ukukhanya refracted ngendlela ekhethekileyo. Ngenxa yesi sizathu, sinokuthi Goldman lens ukunceda khangela ezo iimbombo amehlo, oko akunakwenzeka ukuphanda kunye nezinye iindlela.

Kunqweneleka ukuba kuqhuba isaveyi onjalo:

• abantu abathatha inxaxheba kwezemidlalo eyingozi;
• oomama abakhulelweyo;
• abantu abadala;
• abo ukulimala kwamehlo.

Yintoni inkqubo

Amaninzi, iimviwo fundus Goldmann lens ebanjwe kunye nezinye iindlela zamehlo. Kuphela kulo mzekelo ugqirha uza kukwazi ukufumana umfanekiso opheleleyo lwempilo iliso. Ngosuku loviwo ngokusebenzisa amachaphaza ezizodwa kwandise umfundi. Emva kokuba inkqubo yoviwo akakwazi ukufumana emva ivili kwaye bazibandakanye emsebenzini ukuba kungabangela ubunzima amehlo. Xa lens Goldmann, uphando lugqityiwe. Doctor isebenzisa le divaysi ngaphandle iingxaki ukufumanisa imeko yomguli ngayo retina, yaye oku kumele kwenziwe phambi uqhaqho lwamehlo.

Abaxhamla kule nkqubo - lithuba lokuba uphando ngokweenkcukacha iinxalenye engabalulekanga fundus nokuxilonga kwi lukwisigaba sokuqala utshintsho sisiba mandundu kunye lamabutho semehlo. Kubaluleke kakhulu kwimpilo ngeliso. Kamsinya nje ubona umbono luzizi, nam ndamkele kuye uBawo rhoqo phambi kwamehlo akhe, okanye ukuba emva kokuba umthwalo kwi iliso unayo intloko uqalisa nangoko uqhagamshelane nogqirha. Ngelo lokuqala izifo ezininzi zinokunyangeka.

ukunakekelwa lens

lens Goldman kufuneka zicocwe. Ngokuba lo ekhulwini nesisombululo iperoksayidi yehidrojeni injongo ezintandathu. Umphezulu engaphandle lens ufakwa indlela kweentsholongwane imichiza. Ukuba isisombululo ekhulwini ezintathu iperoksayidi yehidrojeni igalelwe isisombululo izitya 0.5%.

Ngokukhanya nyulu umxube equlathe 85% utywala ne-15% kaEtere. Phezu lens uthuli isuswe ibrashi defatted. Ngalo lonke ixesha qinisekisa ukuba ilens angabekwa ukuba neengxaki koomatshini kunye thermal.

Ngexesha ukusebenza, ilens kufuneka igcinwe, ukuba ibe isakhelo, yayichukumisa iindawo woqondo abakwazi.

Akuvunyelwe ukuba:

• Hlamba le lens kunye notywala.
• Pura ngamanzi engaphantsi kwe-5 nangaphezulu kwama-30 ° C.
• Kufuphi kwivenkile ubushushu.

isiphelo

Musa ukulibala ukuba amehlo akho kufuneka ingqalelo. Kwaye nangona ngalo mzuzu kuba angatshiyo, kodwa sihlolisise iindleko zabo. Ngapha koko, esi sifo kwindawo ethile ngaphakathi yokuzimela kwaye kubonakala ngesiquphe.