Ngemva kokufinyelela eminyakeni engu-40, ingabe sekunzima kancane kuwe ukufunda iphephandaba noma umlayezo efonini yakho? Ingabe kuye kwadingeka ukuthi uhambise isandla sakho phambili ngoba izinhlamvu zibonakala zingacacile? Lokhu kuyinto eyenzeka kubantu abaningi. Kodwa uma ugqoka izibuko ukuze ubone eduze, kufanele uzikhumule uma ubona kude. Ukushintsha lezi zibuko kuyinkinga enkulu kwabanye abantu. Ngakho-ke, uke wezwa ngobuchwepheshe obubizwa ngokuthi 'iMonovision' obuyisisombululo esihle salokhu? Ake sixoxe ngakho namuhla.
Kalula nje, iyini i-monovision?
Kulula kakhulu. I-Monovision iyindlela yokuqeqesha amehlo akho ukuthi agxile ezintweni eziseduze nawe (isib. ukufunda incwadi, ukubuka ifoni yakho) kanye nelinye iso lakho ukuthi ligxile ezintweni ezikude (isib. ukushayela, ukubuka i-TV) . Kufana nokunikeza amehlo akho imisebenzi emibili ehlukene.
Cabanga ngale ndlela. Elinye lamehlo akho lihle kakhulu ekuboneni eduze, kanti elinye iso lihle kakhulu ekuboneni kude. Ubuchopho bakho ngandlela thile buhlanganisa izithombe ezivela kulawa mehlo amabili, budale isithombe esiphelele esikuvumela ukuthi ubone kokubili eduze nakude ngokucacile. Abanye abantu bakubiza ngokuthi 'umbono oxubile'. Lokhu kusho ukuthi ungasusa cishe ngokuphelele isidingo sezibuko zokubona eduze.
Kungani sidinga into efana nale?
Njengoba sonke sikhula, ngokuvamile ngemva kweminyaka engama-40, kuba nzima ukubona izinto eduze. Cishe uke wababona abantu abadala behlikihla amehlo ngenkathi befunda iphephandaba. Kwezokwelapha, lesi simo sibizwa ngokuthi 'i-presbyopia' .
Lokhu kungenxa yokuthi ukuguquguquka kwelensi ngaphakathi kwamehlo ethu kuncipha ngokukhula. Imisipha emincane ngaphakathi kweso ('imisipha ye-ciliary') ayikwazi ukugoba le lensi njengoba kudingeka ukuze igxile kokuthile okuseduze. Lokhu kubizwa ngokuthi 'i-Accommodation reflex' eba buthaka.
I-Monovision iyayigwema le nqubo ebuthakathaka. Futhi, abantu abahlinzwa i-cataract ngeso elilodwa ngezinye izikhathi bangafakwa ilensi ngalolu hlelo lwe-monovision.
Yiziphi izindlela zokufeza i-monovision?
Kunezindlela eziningana ongafinyelela ngazo le monovision. Ezinye zingezesikhashana, ezinye zihlala njalo.
- Amalensi Okuxhumana: Lena yindlela engcono kakhulu nephephile yokubona ukuthi i-monovision ikulungele yini. Udokotela wakho uzofaka ilensi yokubona eduze kwelinye iso kanye nelensi yokubona kude kwelinye iso isikhashana. Lesi yisikhathi esihle sokubona ukuthi ungajwayela yini nokuthi unakho yini ukungakhululeki.
- Ukulungiswa Kokubona Nge-Laser: Uma uthola ukuthi le ndlela iphumelela ngama-contact lens, i-LASIK noma i-PRK kungaba yisisombululo esihlala njalo.Ungahlinzwa nge-laser kanje. Lokhu kushintsha ukuma kwe-cornea yeso futhi kunikeze i-monovision ehlala njalo.
- Ukuhlinzwa Kwelensi Yangaphakathi Kweso: Ngesikhathi sokuhlinzwa kwe-cataract, ilensi yokwenziwa efakwe ngaphakathi kweso ingalungiswa ukuze isetshenziswe njenge-monovision.
Into ebaluleke kakhulu ukuzama njalo isikhathi sokulinga ngama-contact lens ukuze ubone ukuthi uhlelo lwe-monovision lukufanele kangakanani ngaphambi kokuhlinzwa unomphela.
Yiziphi izinzuzo kanye nokungalungi kwale ndlela?
Njenganoma yiluphi uhlobo lokwelashwa, i-monovision inezinzuzo kanye nokungalungi. Ake sibheke ukuthi iyini.
| Izinzuzo | Ukungalungi |
|---|---|
| Ukuthembela ezingilazini ukuze ubone eduze kuncishiswe kakhulu. | Abanye abantu bakuthola kunzima ukuzivumelanisa nalo mbono omusha. Bangase bazizwe benesiyezi futhi bedidekile. |
| Ungazama amalensi okuxhumana ngaphambi kokusebenzisa ukuhlinzwa unomphela. | Ngenxa yokuthi womabili amehlo awasebenzi ndawonye, umbono we-3D kanye nokubona okujulile kungase kunciphe kancane. |
| Amalensi okuxhumana angasetshenziswa njengendlela ehlukile kulabo abesabayo noma abangakhululekile ngokuhlinzwa. | Ukubona kungaba lufifi kancane ezindaweni ezinokukhanya okuncane, ikakhulukazi ebusuku. |
| Imisebenzi eminingi yansuku zonke ingenziwa ngaphandle kwezibuko. | Isimo esiyingozi esibizwa ngokuthi 'umphumela wePulfrich' singavela. |
Iyini le 'Pulfrich Effect' eyingozi?
Lokhu kuyinto okufanele uyiqaphele. Kalula nje, ngoba ukucaca kwezithombe ezisuka emehlweni akho ziye ebuchosheni bakho kuhlukile, isikhathi esithathayo ubuchopho bakho ukucubungula lezi zithombe ezimbili sihlukile kancane. Isithombe esivela kwelinye iso sifika ebuchosheni bakho ngesekondi elincane kakhulu ngemva kwesinye.
Lo mehluko omncane wenza kube nzima ukuqonda ngokunembile ibanga, isivinini, kanye nesiqondiso sento ehambayo.
Ake sithi ushayela imoto. Kungaba yingozi kangakanani uma ungakwazi ukwahlulela ngokunembile ibanga eliphakathi kwakho nemoto noma umuntu owela umgwaqo phambi kwakho? Lo mphumela ungabonakala kakhulu uma ushayela ngesivinini esikhulu futhi ekukhanyeni okuphansi .
Ngakho-ke, uma ungumuntu oshayela njalo, kufanele nakanjani ukhulume nodokotela wakho ngalokhu ngaphambi kokuthatha isinqumo nge-monovision.
Izinto okufanele uzicabangele uma uhlala ne-monovision
Uma usujwayele i-monovision, kubaluleke kakhulu ukunakekela impilo yamehlo akho.
- Thola ukuhlolwa kwamehlo njalo: Hlola amehlo akho okungenani kanye ngonyaka noma emibili, njengoba kunconywa udokotela wakho wamehlo. Uma unezinye izimo zezokwelapha, njengesifo sikashukela , kungadingeka ukuthi uzihlole kaningi.
- Izibuko ezikhethekile: Udokotela wakho angase akunike izibuko ezikhethekile ongazisebenzisa kuphela ukushayela ebusuku noma emisebenzini ebucayi kakhulu, njengokusebenza kukhompyutha. Lokhu kuzoqinisekisa ukuthi unombono omuhle kakhulu kulezi zimo eziyingozi.
I-Monovision iyindlela enhle yokusiza abantu abaningi abangaboni kahle ukuthi balahle izibuko. Kodwa akuwona wonke umuntu. Ukuthi ungajwayela yini nokuthi ingabanga yini imiphumela emibi kuyahlukahluka kuye ngomuntu nomuntu.
Umlayezo Wokuya Nawe Ekhaya
- I-Monovision iyindlela yokuqeqesha iso elilodwa ukuthi libone eduze kanti elinye libone kude. Lesi yisisombululo esihle sesimo se-presbyopia esenzeka ngokuguga.
- Le ndlela ayifanele wonke umuntu, ngakho-ke ngaphambi kokuyohlinzwa unomphela, qiniseka ukuthi uyizama ngama-contact lens.
- Uma ushayela njalo, khuluma nodokotela wakho wamehlo ngengozi 'yomphumela we-Pulfrich'.
- Isibuko esihlukile singadingeka kwezinye izimo ezikhethekile (njengokushayela).
- Kubaluleke kakhulu ukufuna iseluleko kudokotela wamehlo onolwazi ukuze ukhethe indlela yokwelapha engcono kakhulu kuwe.
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