Ingabe nawe ukuthole kunzima ukufunda iphephandaba noma incwadi ngemva kokuhlanganisa iminyaka engu-40? Ingabe kufanele welule ingalo yakho bese ubheka eceleni ukuze ubone umlayezo efonini yakho? Lokhu okuhlangenwe nakho kuvamile kubantu abaningi njengoba bekhula. Noma ingabe ungumuntu olinde ukuhlinzwa kwe-cataract? Khona-ke le ndaba izoba yinto ebaluleke kakhulu kuwe. Namuhla sikhuluma ngendlela emangalisayo engaxazulula inkinga yokungaboni kahle futhi inciphise ukusetshenziswa kwezibuko. Leyo yi-Monovision.
Kalula nje, iyini iMonovision?
I-Monovision iyindlela yokulungisa umbono. Cabanga ngakho njengokungathi amehlo akho enza umsebenzi omncane ohlukanisayo. Kule ndlela, elinye lamehlo akho lisetshenziselwa ukubona izinto eziseduze (isibonelo, ukufunda incwadi, ukubheka ifoni yakho) ngokucacile . Elinye iso lisetshenziselwa ukubona izinto ezikude (isibonelo, ibhasi emgwaqweni, uphawu olukude) .
Manje ungase ucabange, "Pho ngingabona kanjani ngokucacile?" Yilapho ubuchopho bethu bungena khona. Ubuchopho bakho obuhlakaniphile buhlanganisa izithombe ezivela emehlweni womabili ukuze bakhe isithombe esiphelele nesicacile esikuvumela ukuthi ubone kokubili eduze nakude. Abanye abantu bakubiza lokhu ngokuthi "umbono oxubile."
Kungani sidinga iMonovision?
Ngokuvamile, uma sibheka into eseduze nathi, isimo selensi engaphakathi kweso lethu siyashintsha ukuze sicace. Lokhu kwenziwa yimisipha ye-ciliary engaphakathi kweso. Lokhu sikubiza ngokuthi i-accommodation reflex.
Kodwa njengoba siguga, ikakhulukazi ngemva kweminyaka engu-40-45, ukuguquguquka kwelensi yethu kuncipha kancane kancane. Khona-ke, kungakhathaliseki ukuthi leyo misipha izama kangakanani, ayikwazi ukushintsha ukuma kwelensi ngokwanele ukuze ibone eduze. Yingakho siyibiza ngokuthi i-presbyopia . NgesiGreki, kusho "amehlo amadala." Yingakho abantu abaningi asebekhulile befunda iphephandaba belule izingalo zabo futhi bebheka kude.
I-Presbyopia akuyona isifo, kodwa yisimo semvelo esenzeka ngokuguga. I-Monovision iyisisombululo esihle salokhu.
Futhi, noma ngabe une-cataract futhi uhlinzwa iso elilodwa, ungafakwa ilensi yangaphakathi kweso (i-IOL) esweni lakho ngesikhathi sokuhlinzwa, eyenzelwe i-monovision. Ungaxoxa ngalokhu nochwepheshe wamehlo akho bese unquma okwengeziwe.
Yiziphi izindlela zokufeza i-monovision?
Kunezindlela eziningana zokufeza i-monovision. Ezinye zingezesikhashana, okusho ukuthi ungashintshela emuva embonweni ojwayelekile nganoma yisiphi isikhathi. Ezinye ziyizixazululo ezihlala njalo.
1. Amalensi Okuxhumana:Lena indlela elula nethandwa kakhulu. Udokotela wakho uzokunika amalensi amabili anamandla ahlukene esweni ngalinye. Elinye lokubona eduze kanye nelinye lokubona kude. Enye yezinzuzo ezinkulu zale ndlela ukuthi "ungayizama" (ukuhlolwa) ngaphambi kokuthi uye kokuhlinzwa unomphela. Lena yindlela enhle yokubona ukuthi ungajwayela yini.
2. Ukulungiswa Kokubona Nge-Laser: Ukuhlinzwa nge-laser okufana ne -LASIK (Laser-Assisted In Situ Keratomileusis) noma i-PRK (Photorefractive Keratectomy) kungashintsha unomphela isimo se-cornea futhi kufeze i-monovision. Njengoba lokhu kuyisixazululo esihlala njalo, ngokuvamile kwenziwa kuphela ngemva kokuhlolwa ngama-contact lens ukuqinisekisa ukuthi le ndlela ikufanele.
3. Ukuhlinzwa Kwelensi Yangaphakathi Kweso: Njengokuhlinzwa kwe-cataract, kwezinye izimo, ilensi ekhethekile yokwenziwa (Ilensi Yangaphakathi Kweso) ingafakwa esweni ukuze inikeze i-monovision.
| Izinzuzo | Ukungalungi |
|---|---|
| Ukusetshenziswa kwezibuko zokufunda ukuze ubone eduze kwehle kakhulu noma sekuphelile. | Kwabanye, kunzima ngobuchopho babo ukujwayela lo mbono omusha. |
| Ukukwazi ukuzama ama-contact lens ngaphambi kokuhlinzwa unomphela. | Umbono we-3D oncishisiwe kancane kanye nokuqonda okujulile. |
| Amalensi okuxhumana ayisisombululo kulabo abangafuni ukuhlinzwa. | Ngezinye izikhathi kungase kube nezinkinga ezincane, njengokushayela ebusuku. |
Ake sixoxe kabanzi ngobubi be-monovision.
Ubunzima bokujwayela ubuchopho
Lena yinselele enkulu. Kwabanye, ubuchopho buyajwayelana nalo mbono omusha ezinsukwini ezimbalwa. Kwabanye, kungathatha amasonto. Inani elincane kakhulu labantu lingase lingakwazi ukuzivumelanisa nhlobo. Bangase bazizwe benesiyezi futhi balahlekelwe yibhalansi yabo. Yingakho odokotela beluleka ukuthi nakanjani uzame ukugqoka ama-contact lens ngaphambi kokuhlinzwa unomphela.
Ukwehla kokujula kanye nombono we-3D (Ukubona Okujulile)
Amehlo ethu asebenza ndawonye ukuze abone ukujula kwento, noma i-3D. Ku-monovision, ngoba iso elilodwa ligxila eduze kanti elinye likude, lo mbono we-3D unciphile kancane. Ngakho-ke, udinga ukuqaphela kancane ekuqaleni lapho wehla izitebhisi noma upaka imoto.
Isenzakalo esaziwa ngokuthi umphumela wePulfrich
Kuyinkimbinkimbi kancane, kodwa kulula. Cabanga ukuthi ulwazi lwesithombe oluvela kwelinye iso lakho luthunyelwa ebuchosheni bakho kamuva kancane kunolwazi oluvela kwelinye iso. Lokhu kungenzeka ngoba iso elilodwa licacile kanti elinye lifiphele kancane. Khona-ke, uma ubheka into ehamba ngokushesha (isib. imoto emgwaqweni, ibhola eliphonswe), kuba nzima ngobuchopho bakho ukunquma ngokunembile ibanga layo kanye nendlela yokuhamba. Yilokhu esikubiza ngokuthi `(umphumela wePulfrich)`.
Lo mphumela we-"Pulfrich" ungabangela amaphutha ekwahluleleni ibanga, ikakhulukazi lapho ushayela ebusuku noma ekukhanyeni okuphansi. Ngakho-ke, kubaluleke kakhulu ukukhuluma ngokukhululekile nodokotela wakho wamehlo ngomsebenzi wakho kanye nemikhuba yakho yansuku zonke (ikakhulukazi ukushayela) ngaphambi kokunquma nge-monovision.
Izinto okufanele uzicabangele uma uhlala ne-monovision
Uma ungumsebenzisi we-Monovision, kubalulekile ukuthi amehlo akho ahlolwe njalo njengoba kunconywe udokotela wakho. Kufanele uhlolwe amehlo okungenani kanye ngonyaka noma emibili. Uma unezinye izimo zezokwelapha, njengesifo sikashukela, kungadingeka ukuthi amehlo akho ahlolwe kaningi.
Ngezinye izikhathi, uma uzizwa ungakhululekile ezimweni ezithile, njengokushayela, ungathola izibuko ezikhethekile ongazigqoka kuphela ngalezo zikhathi. Konke lokhu kufanele kunqunywe ngokubonisana nodokotela wakho, ngokusekelwe ezidingweni zakho nendlela yakho yokuphila.
Umlayezo Wokuya Nawe Ekhaya
- I-Monovision iyisisombululo esihle se-presbyopia, isimo esibangela ukuncipha kokubona eduze njengoba umuntu ekhula.
- Lapha, iso elilodwa lilungiselelwa ukubona eduze kanti elinye lilungiselelwa ukubona ibanga, kanti ubuchopho buhlanganisa lezi zithombe ezimbili ukuze bunikeze umbono ocacile.
- I-Monovision ingafinyelelwa ngokusebenzisa amalensi okuxhumana, ukuhlinzwa nge-laser (LASIK), noma ukufakwa kwelensi yokwenziwa.
- Ngaphambi kokusebenzisa ukuhlinzwa unomphela, qiniseka ukuthi uzama ama-contact lens futhi uqiniseke ukuthi akulungele.
- Njengoba kungase kube nemiphumela emibi emincane njengokuncipha kombono we-3D, kungcono ukuxoxa ngemisebenzi efana nokushayela nodokotela wamehlo ukuze wenze isinqumo esingcono kakhulu.
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