I-OD vs. OS: Ufunda njani i-Eyeglass Prescription yakho

Umxholo

• Uvavanyo lwamehlo kunye nemigqaliselo yeglasi yeglasi
• Ithetha ntoni i-OD ngokuchasene ne-OS?
• Ezinye izifinyezo kummiselo wakho weglasi yeglasi
• I-SPH
• CYL
• I-axis
• Yongeza
• Iprism
• Izaziso kummiselo wakho weglasi yeglasi
• Umyalelo wakho weglasi yeglasi ayisiyeya yakho yeelensi yokunxibelelana
• Yise kude

Uvavanyo lwamehlo kunye nemigqaliselo yeglasi yeglasi

Ukuba ufuna ukulungiswa kombono emva kovavanyo lwamehlo, ugqirha wamehlo okanye ugqirha wamehlo uza kukwazisa ukuba ngaba ubona kude okanye ujonge kude. Banokukuxelela ukuba une-astigmatism.

Ngalo naluphi na uxilongo, uya kunikwa iphepha lokumiliselwa kwamehlo. Ummiselo wakho uya kuba nenani lamagama afinyeziweyo anje ngala:

• OD
• OS
• I-SPH
• CYL

Ngaba uyazi ukuba zithetha ntoni ezi zinto? Sichaza.

Ithetha ntoni i-OD ngokuchasene ne-OS?

Inyathelo lokuqala lokuqonda amayeza kugqirha wakho wamehlo kukwazi i-OD kunye ne-OS. Ezi zizifinyezo nje zamagama esiLatin:

• I-OD sisifinyezo se "oculus dexter" esiLatin "iliso lasekunene.”
• I-OS sisifinyezo se "oculus sinister" esiLatin "iliso lasekhohlo.”

Umyalelo wakho unokuba nekholamu ye-OU, esisifinyezo se- "oculus uterque," isiLatin "kuwo omabini amehlo."

Nangona i-OS kunye ne-OD zizifinyezo zemveli ezisetyenziswa kwimigqaliselo yeendondo zamehlo, iilensi zonxibelelwano, kunye namayeza wamehlo, kukho abanye oogqirha abaziphuculeyo iifom zokumisela ngokufaka i-OD endaweni ye-RE (iliso lasekunene) kunye ne-OS nge-LE (iliso lasekhohlo).

Ezinye izifinyezo kummiselo wakho weglasi yeglasi

Ezinye izifinyezo onokuzibona kwi-eyeglass prescription yakho iquka i-SPH, i-CYL, i-Axis, i-Add, ne-Prism.

I-SPH

I-SPH sisifinyezo se "sphere" esibonisa amandla elensi emiselweyo ngugqirha ukulungisa umbono wakho.

Ukuba ujonge kufutshane (myopia), inani liya kuba nophawu lokususa (-). Ukuba ubona kude (hyperopia), inani liya kuba nophawu lokudibanisa (+).

CYL

I-CYL sisifinyezo se "cylinder" esibonisa amandla e-lens ugqirha wakho ukumisela ukuba alungise i-astigmatism yakho. Ukuba akukho nani kule kholamu, ugqirha wakho akafumananga i-astigmatism okanye i-astigmatism yakho ayifuni ukulungiswa.

I-axis

I-Axis linani ukusuka ku-1 ukuya ku-180. Ukuba ugqirha wakho ufake isilinda, kuyakubakho nexabiso le-axis ukubonisa indawo. I-Axis ilinganiswa ngeedigri kwaye ibhekisa apho i-astigmatism ikhoyo kwi-cornea.

Yongeza

Yongeza isetyenziswe kwiilensi ezininzi ukubonisa amandla okonyusa ongezelelweyo kwinxalenye esezantsi yeelensi.

Iprism

Iprism ibonakala kuphela kwinani eliphantsi lemigqaliselo. Isetyenziswa xa ugqirha wakho evakalelwa kukuba imbuyekezo yokulungelelaniswa kwamehlo iyimfuneko.

Izaziso kummiselo wakho weglasi yeglasi

Xa ujonga kumyalelo wakho weglasi yeglasi, unokubona izindululo ezithile zeelensi ezifakwe ngugqirha wakho. Oku kukhethwa ngokuzithandela kwaye kunokufumana iindleko ezongezelelweyo:

• Iilensi zePhotochromic.Ikwabizwa ngokuba ziilensi zethayile eguqukayo kunye neelensi ezilungelelanisa ukukhanya, oku kwenza ukuba iilensi zibe mnyama ngokuzenzekelayo xa ziveliswe lilanga.
• Ukutyabeka okuchasayo.Ikwabizwa ngokuba yi-AR yokugquma okanye i-anti-glare coating, le ngubo iyanciphisa ukubonakaliswa kokukhanya okungaphezulu kudlula kwiilensi.
• Iilensi eziqhubela phambili.Ezi ziilensi ezininzi ezingenamigca.

Umyalelo wakho weglasi yeglasi ayisiyeya yakho yeelensi yokunxibelelana

Ngelixa amayeza akho eglasi anazo zonke iinkcukacha eziyimfuneko ukuze uthenge iiglasi zamehlo, ayinalo ulwazi oluyimfuneko lokuthenga iilensi zonxibelelwano.

Olu lwazi lubandakanya:

• ubukhulu belensi
• Ijika lendawo yangasemva yeelensi zonxibelelwano
• umenzi weelensi kunye negama lophawu

Ugqirha wakho uya kuthi ngamanye amaxesha ahlengahlengise inani lamandla okulungisa phakathi kweiglasi kunye neelensi zonxibelelwano ngokusekwe kumgama welensi eya kuba ukusuka kwiso. Iiglasi zimalunga neemilimitha ezili-12 (mm) kude nomphezulu wamehlo ngelixa iilensi zonxibelelwano zijolise ngqo kumphezulu wamehlo.

Yise kude

Ngokuxhomekeka kwimeko yakho ethile-okwangoku usebenzisa i-eyewear yokulungisa, ubudala, izinto ezinobungozi, kunye nokunye-uninzi loogqirha wamehlo bacebisa ukuba kuvavanyo lwamehlo olubanzi minyaka le okanye emibini.

Ngelo xesha, ukuba kukho imfuneko, ugqirha wakho uya kukunika amayeza ukuba uwasebenzise xa uthenga i-eyewear. Lo myalelo ungabonakala udideka de ube uyazi intsingiselo yezifinyezo ezinje nge-OS, OD, kunye neCYL.

Khumbula ukuba amayeza owafumanayo ngenxa yeglasi ayisiwo amayeza eelensi zonxibelelwano. Awunakho ukufumana amayeza eelensi zoqhakamshelwano de ugqirha wakho enze uvavanyo olufanelekileyo kwaye avavanye impendulo yamehlo ekunxibeni iilensi.