Yimaphi ama-lens aqhubekayo, futhi ingabe akulungele?

-Delile

• Yini amalensi aqhubekayo?
• Buhle bamalensi aqhubekayo
  
• Nebubi lens okuqhubekayo
  
• Ziyini izinzuzo zamalensi aqhubekayo?
• 1. Udinga kuphela izibuko ezimbili zamehlo
• 2. Awukho umugqa we-bifocal ongabukeki
• 3. Ukubukeka kwanamuhla, kwentsha
• Yikuphi ukungalungi kwamalensi aqhubekayo?
• 1. Kufanele ufunde ukuthi ungabona kanjani nge-lens
• 2. Ukuhlanekezelwa kombono wesikhashana
• 3. Kubiza kakhulu kunamalensi anombono owodwa namalensi e-bifocal
• Kubiza malini okuqhubekayo?
• Ungasho kanjani ukuthi amalensi aqhubekayo alungile yini kuwe?
• Ukudla okudlela endlini

Ukubuka konke

Izibuko zamehlo zinhlobonhlobo. Lokhu kufaka ilensi yokubona okukodwa ngamandla noma amandla owodwa phezu kwelensi yonke, noma ilensi efushane noma enesigqi esinamandla amaningi phezu kwelensi yonke.

Kepha ngenkathi lokhu kokugcina kuyizinketho uma udinga amandla ahlukile kumalensi akho ukubona izinto ezikude neziseduze, amalensi amaningi we-multifocal aklanywe ngomugqa obonakalayo ohlukanisa izindawo ezahlukahlukene zemithi.

Uma ukhetha i-no-line multifocal lens wena noma ingane yakho, i-lens eyengeziwe eqhubekayo (PAL) ingaba inketho.

Yini amalensi aqhubekayo?

Ama-PAL awuhlobo lwamalensi amaningi enza abantu abadinga amalensi okulungisa ukuze babone izinto ezikude neziseduze. Ukukubeka ngokusobala, la malensi akuvumela ukuthi ubone kahle emabangeni amaningi ngaphandle komugqa ohlukanisayo.

Isidingo selensi eqhubekayo sikhula ngeminyaka. Lapho uneminyaka engama-35 noma engama-40, abantu abaningi baba nobunzima bokugxila amehlo abo ezintweni eziseduze.Lokhu kwaziwa ngokuthi i-presbyopia, futhi ukunxephezela le nkinga yokugxila, abanye abantu bagqoka izibuko zamehlo ezinombono owodwa ibanga, kanye nezibuko zokufunda ukuze basondele.

Ngenkathi le ndlela ingasebenza, ama-PAL ahlinzeka ngesixazululo esilula, esikahle kakhulu ezinkingeni zombono ezihlobene nobudala:

• Ingxenye engenhla yelensi eqhubekayo inikeza amandla owadingayo ukuze ubone kahle kude.
• Isigaba esingezansi sinikeza amandla owadingayo ukuze ubone kahle eduze.
• Isigaba esiphakathi sikusiza ukuthi ubone ngokucacile emabangeni aphakathi noma aphakathi.

Lawa malensi ahlinzeka ngokushintshwa kancane kwamandla kusuka phezulu kuye phansi.

Noma abanye abantu badinga amalensi aqhubekayo njengoba bekhula, lawa malensi nawo ayindlela yezingane ezidinga izibuko zamehlo zokubona eduze ngesibindi nokubona kude.

Buhle bamalensi aqhubekayo

• Izibuko ezimbili zamehlo sayo yonke into
• Awukho umugqa we-bifocal ophazamisayo
• Izibuko zanamuhla, zobusha

Nebubi lens okuqhubekayo

• Kuthatha isikhathi ukuzivumelanisa
• Ukuhlanekezelwa okubonakalayo
• Izindleko eziphakeme

Ziyini izinzuzo zamalensi aqhubekayo?

Ama-lens aqhubekayo akuyona inketho kuphela yokulungisa ukubona eduze nokubona kude, futhi angalungisa i-astigmatism.

I-astigmatism ilapho ukukhanya kungagxili ngokulinganayo kwi-retina ngenxa ye-cornea emise okungajwayelekile, okuholela ekuboneni ukufiphala.

Kanye nokulungisa izinkinga zombono, ezinye izinzuzo zelensi eqhubekayo zifaka:

1. Udinga kuphela izibuko ezimbili zamehlo

Abanye abantu bathola ukuthi ilensi eqhubekayo ingcono kunelensi yokubona eyodwa ngoba ibavumela ukuthi babone kahle emabangeni ahlukene ngaphandle kwesidingo sokuthwala izibuko zamehlo ezimbili.

Ilensi eqhubekayo yenza umsebenzi welensi yombono owodwa nokufunda izibuko, ukuze ube nezibuko elilodwa kuphela esandleni.

2. Awukho umugqa we-bifocal ongabukeki

Ama-lens aqhubekayo ahlinzeka ngezinzuzo zelensi enezinhlobonhlobo eziningi ngaphandle komugqa ohlanganisa izinto eziningi. Futhi njengoba kunokushintshwa kancane kwamandla welensi ngelensi eqhubekayo, akudingeki ubhekane nanoma yiziphi izinguquko ezingazelelwe zokucaca, okuvame ukwenzeka emigqeni eminingi.

3. Ukubukeka kwanamuhla, kwentsha

Izibuko zamehlo ezi-bifocal ne-trifocal kwesinye isikhathi zihlotshaniswa nokuguga. Ngakho-ke ukugqoka izibuko zamehlo ezinolayini obhalwe kabili kungenza uzizwe uzenyeza. Ungazizwa ukhululeke ngokwengeziwe ngelensi eqhubekayo ngoba awukho umugqa obonakalayo.

Yikuphi ukungalungi kwamalensi aqhubekayo?

Ngenkathi ilensi eqhubekayo inganikeza ukucaca okubonakalayo kokuthi "akukho layini", kubalulekile ukuqonda ukungalungi kwala malensi.

1. Kufanele ufunde ukuthi ungabona kanjani nge-lens

Ama-bifocals namalensi ama-trifocal anomugqa obonakalayo, ngakho-ke kulula ukunquma lapho ungabheka khona umbono ocacile. Njengoba amalensi aqhubekela phambili engenawo umugqa, kukhona ijika lokufunda, futhi kungathatha isonto elilodwa kuya kwamabili ukufunda indlela efanele yokubuka ngelensi.

2. Ukuhlanekezelwa kombono wesikhashana

Ingxenye engezansi yelensi eqhubekayo iyakhuliswa ngoba yakhelwe ukufundwa. Ngakho-ke uma amehlo akho ebheka phansi lapho wehla unqenqema noma uhamba phezulu, izinyawo zakho zingahle zibonakale zinkulu futhi kungaba nzima ukukala isinyathelo sakho. Lokhu kungadala ukukhubeka noma ukukhubeka.

Uzodinga ukuqeqesha amehlo akho ukuthi abheke engxenyeni ekude yelensi eqhubekayo kunengxenye yokufunda ukuze ugweme izinkinga ngenkathi uhamba.

Ama-lens aqhubekayo nawo angadala ukuphazamiseka kwemiphetho lapho uhambisa amehlo akho ngapha nangapha. Le miphumela yokubuka iye ingabonakali kangako njengoba amehlo akho ejwayela amalensi.

3. Kubiza kakhulu kunamalensi anombono owodwa namalensi e-bifocal

Gcina engqondweni umehluko wezindleko phakathi kwamalensi aqhubekayo, amalensi wombono owodwa, namalensi we-bifocal. Ama-lens aqhubekayo abiza kakhulu ngoba empeleni uthola izibuko zamehlo ezintathu kokukodwa.

Ngaphezu kwalokho, ukhokhela okulula nesikhathi esengeziwe esiya ekwakheni isibuko seso esinemigqa eminingi.

Kepha uma unikezwa lula nokulula kwamalensi aqhubekayo, abanye abantu banomuzwa wokuthi izindleko ezengeziwe zikufanele.

Kubiza malini okuqhubekayo?

Imvamisa, lamalensi abiza kakhulu kune-bifocal. Isibonelo, ungakhokha u- $ 260 ngelensi ejwayelekile eqhubekayo kanye ne- $ 105 kuphela yama-bifocals, ngokusho kweMibiko yabathengi.

Futhi uzokhokhela ngaphezulu ilensi eqhubekayo yekhwalithi ephezulu. Isibonelo, ilensi eqhubekayo yenkomba ephezulu ingabiza u- $ 350, kanti ungakhokha u- $ 310 ngelensi eqhubekayo yokucaca okuphezulu. Futhi uma ufuna ilensi eqhubekayo emelana nokuklwebheka, intengo ingagxumela ku- $ 400.

Amanani nawo angahluka ngesifunda kanye nenkampani ye-eyeglass. Ngakho-ke kubalulekile ukuthenga ezitolo bese uqhathanisa amanani.

Ukuthenga online kungaba inketho; noma kunjalo, ingaba nezingozi ezithile. Ukuze usebenze kahle, amalensi aqhubekayo adinga ukukalwa emehlweni akho futhi okungaba nzima ukuwafeza ku-inthanethi.

Ungase futhi ucabangele ukuthi ucwaningo lwango-2011 olwenziwe yi-American Optometric Association lwembula ukuthi amaphesenti angama-44.8 ezingilazi eziyi-154 ezi-odiwe ku-inthanethi anemiyalelo engalungile noma izinkinga zokuphepha.

Ukuze uthole imiphumela emihle, cabanga ukusebenzisana nodokotela wamehlo onekhono ongakusiza ukhethe uhlobo oluhle kakhulu lohlaka nolensi.

Ungasho kanjani ukuthi amalensi aqhubekayo alungile yini kuwe?

Noma ilensi eqhubekayo ikuvumela ukuthi ubone amabanga aseduze nakude ngokusobala, lalensi akuyona inketho elungile kuwo wonke umuntu.

Abanye abantu abalokothi bazijwayeze ukugqoka ilensi eqhubekayo. Uma lokhu kwenzeka kuwe, ungahle ube nesizungu njalo, ube nezinkinga ngokubona okujulile, nokuphazamiseka kwendlela.

Futhi, uma usebenza kukhompyutha, ungathola ukuthi ilensi ejwayelekile eqhubekayo ayinikezeli ukucaciseleka okudingayo ebangeni eliphakathi.

Esikhundleni salokho, ungahle udinge ilensi eqhubekayo yomsebenzi noma yekhompyutha, enikeza amandla aqinile amabanga aphakathi nendawo. Lokhu kunganciphisa ukukhathala kwamehlo nobuso.

Ukuphela kwendlela yokwazi ukuthi amalensi aqhubekayo azokusebenzela yini ukuwazama bese ubona ukuthi amehlo akho alungiswa kanjani. Uma ungaguquguquki ngemuva kwamasonto amabili, udokotela wamehlo wakho angadinga ukulungisa amandla akulensi yakho. Uma izinkinga ziqhubeka, ilensi ehlanganisiwe ingahle ikulungele kangcono.

Ukudla okudlela endlini

Ama-lens aqhubekela phambili alungele ukubona kude kanye nokubona kude, kepha kukhona ijika lokufunda futhi abanye abantu abalokothi bazijwayele kulamalensi.

Ukusiza amehlo akho ajwayele, gqoka ilensi yakho eqhubekayo kaningi ngangokunokwenzeka ekuqaleni. Futhi, zijwayeze ukuguqula ikhanda lakho libuke izinto esikhundleni sokuhambisa amehlo akho aye kolunye uhlangothi. Ukulunguza ohlangothini lwezibuko kungaphazamisa umbono wakho.

Lapho ufunda, noma kunjalo, hambisa amehlo akho hhayi ikhanda lakho.

Ubuchwepheshe be-eyeglass buhlale buthuthuka. Ngakho-ke uma ungakwazi ukugqoka ilensi eqhubekayo namuhla, ungakwazi ukugqoka eyodwa ngokuzayo.