Inqubo yokufaka i-multifocal eqhubekayo
1. Khuluma futhi uqonde izidingo zakho zokubona, futhi ubuze ngomlando wezibuko zakho, umsebenzi, kanye nezimfuneko zezibuko ezintsha.
2. I-Optometry yekhompyutha kanye nesilinganiso sebanga elilodwa le-interpupillary.
3. Ukuhlolwa kombono onqunu/kwangempela, lapho kutholwa i-diopter yebanga, kufanele kusekelwe ku-diopter yezibuko zangempela kanye nezidingo zokubona kude.
4. Umgomo we-retinoscopy kanye ne-subjective refraction (umbono webanga) ukucacisa i-diopter yebanga yilezi: ngokusekelwe esimisweni sombono owamukelekayo webanga, i-myopia ingaba ingajulile ngangokunokwenzeka, i-hyperopia ingaba ngokwanele ngangokunokwenzeka, futhi i-astigmatism yengezwa. Qaphela futhi ugcine amehlo akho elinganisela.
5. Ukulungiswa kombono webanga, lungisa futhi uqinisekise ilensi nge-diopta yebanga phambi kwamehlo omfundi, futhi uvumele isihloko siyigqoke ukuze unqume ukuthi i-diopta yebanga iyamukeleka yini.
6. Isilinganiso se-Near-presbyopia/presbyopia.
7. Zama ukulungisa okuseduze kombono, lungisa futhi uqinisekise.
8. Isingeniso nokukhethwa kwezinhlobo zamalensi aqhubekayo nezinto zokwakha.
9. Kunconywa ukukhetha uhlaka. Khetha ifreyimu ehambisanayo ngokwehlukileamalensi aqhubekayoukhetha, futhi uqinisekise ukuthi kunebanga elanele eliqondile ukusuka enkabeni yomfundi ukuya endaweni ephansi kakhulu yonqenqema olungezansi lohlaka.
10. Ukubunjwa kohlaka, ibanga phakathi kwezibuko zamehlo ngu-12 ~ 14mm. I-engeli yokutshekela phambili ingu-10°~12°.
11. Isilinganiso sobude beso somfundi oyedwa.
12. Ukunqunywa kwemingcele yokulinganisa ifilimu eqhubekayo.
13. Isiqondiso ekusetshenzisweni kwamalensi aqhubekayo. Kukhona izimpawu kumalensi. Hlola ukuthi ama-crosshairs atholakala phakathi nendawo yomfundi futhi unqume ukusetshenziswa kwawo wonke amabanga.
Ukukhetha kozimele okunemininingwane eminingi
Ukuze kukhethwe amafreyimu, okokuqala kudingeka ukuthi iphoyinti elimaphakathi lomfundi ukuya onqenqemeni olungaphakathi lohlaka olungezansi lohlaka ngokuvamile lingabi ngaphansi kuka-22mm. Ubude besiteshi esivamile esingu-18mm noma uhlaka oluyi-19mm kufanele lube ngu-≥34mm, kanti ubude bozimele besiteshi esingu-13.5 noma u-14mm kufanele bube ngu-≥30mm, futhi ugweme ukukhetha amafreyimu ane-bevel enkulu ohlangothini lwekhala, ngoba kulula "ukusika." "indawo yokufunda. Zama ukungakhethi amafreyimu angenasici, okulula ukuwakhulula nokushintsha amapharamitha ahlukahlukene. Futhi qiniseka ukuthi ukhetha amafreyimu anamaphedi ekhaleni alungisekayo.
Ukumaka okugxile kokuningi okuqhubekayo
Ngaphambi kokulinganisa, uhlaka kufanele lulungiswe futhi lulinganiswe ukuze kutholwe ibhalansi engcono kakhulu. Ibanga phakathi kwezibuko zamehlo ngokuvamile liyi-12-13mm, i-angle yangaphambili ingama-degree angu-10-12, futhi ubude bamathempeli bufanelekile.
1. Umhloli nomuntu ohlolwayo bahlala maqondana nomunye futhi bagcina amehlo abo esezingeni elifanayo.
2. Umhloli uphethe ipeni lokumaka ngesandla sokudla, avale iso langakwesokudla, avule iso langakwesokunxele, abambe ithoshi lohlobo lwepeni ngesandla sobunxele alifake ngaphansi kwejwabu leso langakwesokunxele, bese ecela ohlolwayo ukuthi abuke iso lomhloli. Maka ibanga le-interpupillary ngemigqa enqamulayo kusampula yezibuko ngokusekelwe ekuboniseni okuvela phakathi nendawo yomfundi wesifundo. Ibanga eliqondile ukusuka empambanweni yemigqa ephambanayo ukuya emaphethelweni angaphakathi aphansi ohlaka wubude bomfundi beso lesokudla lesifundo.
3. Umhloli ubambe umaka esandleni sokudla, avale iso langakwesokunxele, avule iso lakhe langakwesokudla, abambe ipenlight ngesandla sobunxele alifake ngaphansi kwejwabu leso langakwesokudla, acele ohlolwayo ukuthi abheke kwesokudla somhloli. iso. Maka ibanga le-interpupillary ngemigqa enqamulayo kusampula yezibuko ngokusekelwe ekuboniseni okuvela phakathi nendawo yomfundi wesifundo. Ibanga eliqondile ukusuka empambanweni yemigqa ephambanayo ukuya emaphethelweni angaphakathi aphansi ohlaka wubude bomfundi beso lesokunxele lesifundo.
Write kuze kube sekupheleni
Amalensi we-multifocal aqhubekayoayabiza ukwenza futhi angamalensi asebenzayo. Ziqondiswe kubantu abanekhono elinganele lokulungisa. Abakwazi ukubona ngokucacile eduze (ibanga lokufunda elingu-30 cm), kungakhathaliseki ukuthi ngamehlo anqunu noma begqoke izibuko, noma ababoni kahle eduze ngokubona okusebenzayo. , kufanele ugqoke izibuko ngesikhathi noma udinga ukushintsha izibuko. Kumele kuqashelwe lapha ukuthi isimiso sokugqoka izibuko ze-presbyopia yiyona ndlela engcono kakhulu yokubona i-acuity kanye nezinga eliphakeme kakhulu, ukuqinisekisa izinto ezicacile nokunciphisa umthwalo wokukhathala wamehlo obangelwa umbono oseduze ngangokunokwenzeka.
Isikhathi sokuthumela: Dec-08-2023