Ipheya lezibuko lingabizwa kanjani ngokuthi liqeqeshiwe? Akumele kube ne-diopter enembile kuphela, kodwa futhi kufanele icutshungulwe ngokuya ngebanga elinembile le-interpupillary. Uma kunephutha elibalulekile ebangeni le-interpupillary, ogqokile uzozizwa engakhululekile ngisho noma i-diopter inembile. Kungani-ke ibanga elinganembile le-interpupillary libangela ukugqoka okungakhululekile? Ngalo mbuzo, ake sikhulume ngolwazi oluthile mayelana nebanga le-interpupillary.
- Liyini ibanga le-interpupillary?
Ibanga phakathi kwezikhungo zejometri zabafundi bamehlo womabili libizwa ngokuthi ibanga le-interpupillary. Embhalweni we-Optometry, isifinyezo sithi PD, kanti iyunithi ingu-mm. Kuphela uma umugqa wokubona womabili amehlo ungadlula phakathi nendawo ye-optical lens yezibuko lapho angagqokwa ngokukhululeka. Ngakho-ke, lapho ucubungula izibuko, kufanele uzame ukwenza ibanga le-optical centre yezibuko eduze nebanga le-interpupillary lamehlo.
- Ukuhlukaniswa kwebanga le-interpupillary?
Ngoba iso lomuntu lihlangana ngaphakathi libe ngamazinga ahlukene lapho ebuka amabanga ahlukene. Lapho into ibukwa eduze, amehlo ahlangana nakakhulu ngaphakathi. Ngakho-ke, kuye ngebanga lokubuka, ibanga le-interpupillary lihlukaniswa cishe libe yibanga elikude le-interpupillary kanye nebanga eliseduze kwe-interpupillary. Ibanga le-interpupillary ibanga lisetshenziselwa izibuko ukubuka kude; Ibanga eliseduze le-interpupillary lisetshenziselwa izibuko eziseduze, ezaziwa nangokuthi izibuko zezimbali.
- Yiziphi izindlela ezivame ukusetshenziswa ze-interpupillary distance measurement?
Ku-Optometry, amathuluzi afana nerula yebanga le-pupillary, imitha yebanga le-pupillary, kanye ne-computer refractor kuvame ukusetshenziselwa ukulinganisa. Ngithatha indlela yerula yebanga elivame ukusetshenziswa kakhulu njengesibonelo, ngizokwethula kafushane indlela yokulinganisa yebanga le-interpupillary:
1. Udokotela wamehlo kanye nomuntu ophathwayo bahlala endaweni yobude obufanayo futhi baqhelelene ngo-40cm.
2. Beka irula lebanga le-interpupillary ngokuvundlile phambi kwebhuloho lekhala lesifundo kanye nebanga elilingana nebanga eliphakathi kwezibuko zamehlo. Ungawutshekisi uvundlile.
3. Umcwaningi makabheke iso langakwesokunxele likadokotela wamehlo ngawo womabili.
4. Udokotela wamehlo uvala iso lakhe langakwesokudla bese ebheka ngeso langakwesokunxele ukuze uphawu olu-0 lwesikali se-interpupillary luncike onqenqemeni lwangaphakathi lomfundi weso lesokudla lomfundi.
5. Gcina indawo yerula yebanga le-interpupillary ingashintshile, ophathwayo ubheka iso langakwesokudla likadokotela wamehlo ngawo womabili amehlo, futhi udokotela wamehlo avale iso langakwesokunxele, futhi abuke ngeso langakwesokudla. Isikali lapho irula yebanga le-interpupillary iqondana nonqenqema lwangaphandle lomfundi weso lesokunxele lesifundo siyibanga elilinganiselwe le-interpupillary ebangeni.
- Kungani iphutha ebangeni le-interpupillary ngesikhathi sokucubungula izibuko libangela ukungakhululeki?
Ngemva kokuqonda umqondo ovamile oyisisekelo mayelana nebanga phakathi kwe-interpupillary, ake sibuyele embuzweni wokuqala. Kungani ibanga le-interpupillary elingalungile lidala ukungakhululeki kokugqoka?
Uma amalensi amabili ecutshungulwa, kwenzeka iphutha ebangeni le-interpupillary, ngakho-ke kufanele kube ne(iso) elilodwa (noma amabili) lapho ukukhanya okutholwe yi-eksisi ebonakalayo kungakwazi ukudlula phakathi nendawo yokubona yelensi. Ngalesi sikhathi, ngenxa yomphumela we-prism welensi, isiqondiso sokukhanya okungena esweni siyashintshwa, futhi izithombe zento ezakhiwe emehlweni amabili aziweli emaphuzwini ahambisanayo, okuholela ekuboneni kabili (ghosting). Ngenxa yalokho, ubuchopho buzokhiqiza ngokushesha i-reflex yokulungisa ukulungisa imisipha ye-extraocular futhi iqede i-diplopia. Uma le nqubo yokulungisa iqhubeka, izobangela ukungakhululeki kumuntu ogqokile, futhi uma iphutha likhulu, lizobe lingabekezeleleki kakhulu.
Uma ufuna ukwazi okwengeziwe mayelana nezitayela zemfashini yezibuko kanye nokubonisana nezimboni, sicela uvakashele iwebhusayithi yethu futhi usithinte noma nini.
Isikhathi sokuthumela: Mar-06-2024