Izinombolo ezisencwadini kadokotela yengilazi yeso lakho zihlobene nokuma kwamehlo akho namandla okubona kwakho.Bangakusiza ukuthi ubone ukuthi unayo yini ukubona eduze, ukubona kude noma i-astigmatism - futhi ngezinga elingakanani.
Uma wazi ukuthi yini okufanele uyibheke, ungenza umqondo wezinombolo nezifinyezo eshadini lakho lencwadi kadokotela.
I-OD vs. OS: Eyodwa ngeso ngalinye
Odokotela bamehlo basebenzisa izifinyezo “OD” kanye “OS” ukuze babonise amehlo akho angakwesokudla nakwesokunxele.
● I-OD iso lakho langakwesokudla.I-OD ifushane ku-oculus dexter, inkulumo yesiLatini esho “iso langakwesokudla.”
● I-OS iso lakho lesokunxele.I-OS ifushaniswa ne-oculus sinister, isiLatini esisho “iso langakwesokunxele.”
Umbono wakho kadokotela ungase futhi ube nekholomu ebhalwe ukuthi "OU."Lesi isifinyezo sei-oculus uterque, okusho ukuthi "amehlo womabili" ngesiLatini.Lawa magama afushanisiwe ajwayelekile emibhalweni yezibuko, ama-contact lens kanye nemithi yamehlo, kodwa abanye odokotela nemitholampilo bakhethe ukwenza imiyalelo yabo yamehlo ibe yisimanje ngokusebenzisaRE (iso langakwesokudla)futhiLE (iso langakwesokunxele)esikhundleni se-OD ne-OS.
I-Sphere (SPH)
I-Sphere ikhombisa inani lamandla elensi elibekelwe ukulungisa ukubona eduze noma ukubona kude.Amandla elensi akalwa ngama-diopter (D).
● Uma inombolo engaphansi kwalesi sihloko iza nophawu lokususa (–),uyabona eduze.
● Uma inombolo ngaphansi kwalesi sihloko inophawu lokuhlanganisa (+),ubona kude.
Isilinda (CYL)
Isilinda sibonisa inani lamandla amalensi adingekayoi-astigmatism.Ihlala ilandela amandla e-sphere kumyalelo wengilazi yamehlo.
Inombolo ekukholamu yesilinda ingase ibe nophawu lokususa (lokulungisa i-astigmatism ebona eduze) noma uphawu lokuhlanganisa (lwe-astigmatism ebona kude).
Uma kungaveli lutho kule kholomu, kungenzeka ukuthi awunayo i-astigmatism, noma izinga lakho le-astigmatism lincane kangangokuthi alidingi ukulungiswa.
I-eksisi
I-axis ichaza i-lens meridian engaqukethe amandla esilinda kuyoi-astigmatism efanele.
Uma incwadi kadokotela yengilazi yamehlo ihlanganisa amandla esilinda, nayo idinga ukufaka inani le-eksisi, elilandela amandla esilinda.
I-eksisi ichazwa ngenombolo ukusuka ku-1 kuye ku-180.
● Inombolo engu-90 ihambisana ne-meridian yeso eqondile.
● Inombolo 180 ihambisana ne-meridian yeso evundlile.
Engeza
"Engeza" yi-wanezela amandla okukhulisakufakwa engxenyeni engezansi yamalensi ezinto eziningi ukuze kulungiswe i-presbyopia — ukubona kude kwemvelo okwenzeka ngokuya ngeminyaka.
Inombolo evela kulesi sigaba sencwadi kadokotela ingamandla "engeziwe", nanoma ungaluboni uphawu lokuhlanganisa.Ngokuvamile, izosukela ku-+0.75 iye ku-+3.00 D futhi izoba amandla afanayo kuwo womabili amehlo.
I-Prism
Leli inani lamandla e-prismatic, likalwa ngama-prism diopters ("pd" noma unxantathu uma libhalwe ngesandla samahhala), elinqunyelwe ukunxephezelaukuqondanisa kwamehloizinkinga.
Iphesenti elincane kuphela lemiyalelo yengilazi yamehlo ehlanganisa ukukala iprism.
Uma likhona, inani le-prism liboniswa kumayunithi esiNgisi esimethrikhi noma esiyingxenye (ngokwesibonelo, u-0.5 noma u-½), futhi isiqondiso seprism siboniswa ngokuqaphela indawo ehlobene "yesisekelo" salo (umphetho owugqinsi).
Izifinyezo ezine zisetshenziselwa isiqondiso se-prism: BU = base up;BD = isisekelo phansi;BI = isisekelo phakathi (ekhaleni lomuntu oyifakile);BO = isisekelo ngaphandle (endlebeni yalowo ogqokile).
Uma unezinye izinto ozithakaselayo noma udinga ulwazi oluthe xaxa lobungcweti ngamalensi okubona, sicela ungene ekhasini lethu ngokusebenzisahttps://www.universeoptical.com/stock-lens/ukuze uthole usizo olwengeziwe.