Inqubo yokufakwa kwe-multifocal eqhubekayo
1. Xoxa futhi uqonde izidingo zakho zokubona, bese ubuza ngomlando wezibuko zakho, umsebenzi, kanye nezidingo zezibuko ezintsha.
2. I-computer optometry kanye nokulinganisa ibanga phakathi kwabafundi abaneso elilodwa.
3. Ukuhlolwa kombono onqunu/wokuqala, lapho kunqunywa i-diopter yebanga, kumele kusekelwe ku-diopter yezibuko zokuqala kanye nezidingo zokubona ibanga.
4. Isimiso se-retinoscopy kanye ne-subjective refraction (umbono webanga) sokunquma i-diopter yebanga yile: ngokusekelwe esimisweni sokubona ibanga elamukelekayo, i-myopia ingaba ncane ngangokunokwenzeka, i-hyperopia ingaba yanele ngangokunokwenzeka, futhi i-astigmatism yengezwa. Qaphela futhi ugcine amehlo akho elinganisela.
5. Ukuze ulungise umbono webanga, lungisa futhi uqinisekise ilensi nge-dipter yebanga phambi kwamehlo omuntu ohlolwayo, bese uvumela umuntu ohlolwayo ayigqoke ukuze anqume ukuthi i-dipter yebanga iyamukeleka yini.
6. Ukulinganisa i-Near-presbyopia/presbyopia.
7. Zama ukulungisa umbono oseduze, lungisa bese uqinisekisa.
8. Isingeniso kanye nokukhethwa kwezinhlobo zezinto zelensi eziqhubekayo.
9. Kunconywa ukukhetha uhlaka. Khetha uhlaka oluhambisanayo ngokwezindlela ezahlukeneamalensi aqhubekayoukhetha, futhi uqinisekise ukuthi kunebanga elanele eliqondile ukusuka enkabeni yempuphu kuya endaweni ephansi kakhulu yomphetho ongezansi wohlaka.
10. Ukuma kohlaka, ibanga phakathi kwezibuko zamehlo lingu-12 ~ 14mm. I-engeli yokuthambekela phambili ingu-10 ° ~ 12 °.
11. Ukulinganisa ukuphakama komfundi oneso elilodwa.
12. Ukunqunywa kwamapharamitha okulinganisa ifilimu eqhubekayo.
13. Isiqondiso ngokusetshenziswa kwamalensi aqhubekayo. Kunezimpawu kumalensi. Hlola ukuthi ngabe izinwele eziphambene zitholakala maphakathi nomfundi bese unquma ukusetshenziswa kwawo wonke amabanga.
Ukukhethwa kohlaka oluqhubekayo lwe-multifocal frame
Ukuze kukhethwe ozimele, kudingeka kuqala ukuthi iphuzu eliphakathi le-pupil kuya emaphethelweni angaphakathi ozimele ongezansi wozimele ngokuvamile lingabi ngaphansi kuka-22mm. Ukuphakama komzila ojwayelekile ongu-18mm noma uzimele ongu-19mm kufanele kube ngu-≥34mm, kanti umzila omfushane ongu-13.5 noma uzimele ongu-14mm ukuphakama kozimele kufanele kube ngu-≥30mm, futhi ugweme ukukhetha ozimele abane-bevel enkulu ohlangothini lwekhala, ngoba kulula "ukunquma" indawo yokufunda. Zama ukungakhethi ozimele abangenafreyimu, okulula ukukhulula nokushintsha amapharamitha ahlukahlukene. Qiniseka futhi ukuthi ukhetha ozimele abanezimbobo zekhala ezilungisekayo.
Ukumaka okugxile kakhulu okuqhubekayo
Ngaphambi kokulinganisa, uhlaka kumele lulungiswe futhi lulinganiswe ukuze kutholakale ibhalansi engcono kakhulu. Ibanga phakathi kwezibuko zamehlo ngokuvamile lingu-12-13mm, i-engeli engaphambili ingu-10-12 degrees, kanti ubude bamathempeli buyafaneleka.
1. Umhloli nomuntu ohlolwayo bahlala bebhekene futhi bagcina amehlo abo esezingeni elifanayo.
2. Umhloli uphethe ipeni lokumaka esandleni sakhe sokudla, avale iso lakhe lokunene, avule iso lakhe lesobunxele, abambe ithoshi elifana nepeni esandleni sakhe sesobunxele bese elibeka ngaphansi kwejwabu elingezansi leso lesobunxele, bese ecela umhloli ukuba abheke iso lesobunxele lomhloli. Maka ibanga eliphakathi kwabantwana ngemigqa ewelayo kusampula yezibuko ngokusekelwe ekukhanyeni okuvela enkabeni yomfundi wesifundo. Ibanga eliqondile ukusuka endaweni lapho imigqa ewela khona iye emaphethelweni angaphakathi angaphansi kohlaka ukuphakama komfundi weso lokunene lomfundi.
3. Umhloli uphethe uphawu esandleni sakhe sokunene, uvala iso lakhe lesobunxele, avule iso lakhe lokunene, abambe isibani sepeni esandleni sakhe sokunene bese esibeka ngaphansi kwejwabu elingezansi leso lakhe lokunene, ecela umhloli ukuba abheke iso lokunene lomhloli. Maka ibanga eliphakathi kwabantwana ngemigqa ewelayo kusampula yezibuko ngokusekelwe ekukhanyeni okuvela enkabeni yomfundi wesifundo. Ibanga eliqondile ukusuka endaweni lapho imigqa ewela khona iye emaphethelweni angaphakathi angaphansi kohlaka ukuphakama komfundi weso lesobunxele lomfundi.
Wisiko kuze kube sekupheleni
Amalensi amaningi aqhubekayoZibiza kakhulu ukuzenza futhi ziyi-lens ezisebenzayo. Zihloselwe abantu abangakwazi ukuzilungisa ngokwanele. Abakwazi ukubona kahle beseduze (ibanga lokufunda elingu-30 cm), kungaba ngamehlo angenalutho noma begqoke izibuko, noma abakwazi ukubona kahle beseduze benombono osebenzayo. , kufanele ugqoke izibuko ngesikhathi noma udinga ukushintsha izibuko. Kufanele kuqashelwe lapha ukuthi isimiso sokugqoka izibuko ze-presbyopia siyindlela engcono kakhulu yokubona kanye nezinga eliphezulu kakhulu, ukuqinisekisa izinto ezicacile nokunciphisa umthwalo wokukhathala kwamehlo obangelwa ukubona eduze ngangokunokwenzeka.
Isikhathi sokuthunyelwe: Disemba-08-2023