Ngaba oku kuyenzeka nakuwe? Unxiba iiglasi ukuze ufunde iphephandaba. Xa ufuna ukubukela iTV okwethutyana, uyazikhulula uze ufake enye. Xa uhamba endleleni, udinga ezinye iiglasi ukuze uzibonele kude. Akuyongxaki ukutshintsha ezi glasi? Uthenga enye ngengqondo yakho uze uyishiye ekhaya. Ngamanye amaxesha uyazilibala zombini. Ukuba nawe ujongene nale ngxaki, iilensi eziqhubekekayo zinokuba sisisombululo esifanelekileyo kuwe. Namhlanje, siza kuthetha ngale nto ngendlela elula onokuyiqonda.
Zithini ezi Lenses zeProgressive?
Ngamafutshane, ezi luhlobo olukhethekileyo lweeglasi ezinamandla amaninzi ngaphakathi kwilensi enye . Ngokwezonyango, ezi ziilensi ze-"Multifocal". Oko kuthetha ukuba ungabona ngokucacileyo kumgama owahlukileyo ngelensi efanayo. Cinga nje...
- Jonga ngononophelo: imisebenzi efana nokufunda iphephandaba okanye incwadi, ukujonga ifowuni yakho, okanye ukufaka intambo enalitini.
- Ukubona okukude: Kwizinto ezinjengokusebenza kwikhompyutha, ukujonga ubuso bomntu ojongene nawe etafileni yesidlo sangokuhlwa, nokubukela iTV.
- Ukubona umgama: Kwizinto ezinjengokuqhuba imoto, ukufunda igama levenkile ngelixa uhamba esitalatweni, nokubona umntu okude.
Bekuya kuba lula kangakanani ukuba iglasi enye ibinokukunceda kuyo yonke le misebenzi mithathu? Yiloo nto eyenziwa yiProgressive Lenses.
Ezi zikwabizwa ngokuba ziiProgressive Addition Lenses (PALs). Usenokuba ukhe wazibona iiglasi ze-``Bifocal`` okanye ``Trifocal`` ezazisetyenziswa ngoomama bethu, ootata, kunye noomakhulu nootatomkhulu bethu. Ilensi ifana nomgca osezantsi embindini, akunjalo? Loo mgca wahlula umgama kunye nombono okufutshane. Kodwa into ekhethekileyo ngeeProgressive Lenses kukuba akukho mgca onjalo obonakalayo ngaphandle . Ngenxa yokuba utshintsho lwamandla lwenzeka kakuhle ngaphakathi kwilensi, umbukeli akanakwazi ukubona ukuba yilensi eqhelekileyo okanye enegunya elininzi.
Ngubani ngokwenene ozidingayo ezi zinto?
Impendulo ephambili kulo mbuzo kukuba abantu abaninzi abaneminyaka engaphezu kwama-40 ubudala banokuzifuna ezi zinto.
Khawucinge nje, awukwazi ukubona oonobumba kwiphephandaba ngokucacileyo njengoko ubuqhele ukwenza? Ngaba wakha wanyanzeleka ukuba ubambe ifowuni yakho kancinci emehlweni akho ukuze ufunde umyalezo ? Le yimeko eqhelekileyo eyenzeka ngokuhamba kweminyaka. Ukuguquguquka kwelensi ngaphakathi kwamehlo ethu kuyancipha, nto leyo eyenza kube nzima 'ukugxila' kwizinto ezikufutshane. Kwizonyango, oku sikubiza ngokuba yiPresbyopia . Abantu abaninzi bakubiza ngokuba yi "presbyopia".
I-Presbyopia ayisosifo. Yinto yendalo eyenzeka xa umntu ekhula. Ngoko ke akukho sizathu sokuba nexhala okanye abe neentloni ngayo.
Ngoko ke ukuba unengxaki yokubona umgama (umzekelo, ukubona okukufutshane - iMyopia), kwaye emva kweminyaka engama-40, xa iPresbyopia iqala, kuya kufuneka usebenzise iiglasi ezimbini. Kulapho ke iiLensi eziPhambili ziba luncedo kakhulu.
Kwakhona, oogqirha ngamanye amaxesha banokucebisa olu hlobo lwelensi kwiingxaki zokubona ezinokubakho ebantwaneni.
Ngaba kukho naziphi na iintlobo zeelensi eziqhubekekayo?
Ewe, kukho iintlobo ezahlukeneyo zeelensi eziqhubekekayo onokukhetha kuzo ngokuxhomekeke kwiimfuno zakho nendlela ophila ngayo. Makhe sijonge iintlobo eziphambili.
| Uhlobo lwelensi | Ngubani ofanelekileyo oku kwaye yintoni ekhethekileyo ngayo? |
|---|---|
| Iilensi zeKhompyutha eziqhubekekayo | Ezi zikwabizwa ngokuba yi "Near variable focus lens." Oku kufanelekile kakhulu kumntu osebenza phambi kwekhompyutha ixesha elingaphezulu kweeyure ezine ngosuku. Kuba indawo yokubukela yezi lens yenziwa banzi kumgama ophakathi (isikrini sekhompyutha). |
| Iilensi zePremium Progressive | Ezi zezona ntlobo zibalaseleyo. Ziluhlobo lwelensi eyenzelwe ngokukodwa ukulingana nobuso bakho, kuthathelwa ingqalelo amandla amehlo akho, umgama phakathi kwamehlo akho, kwanokuba leliphi iliso elililiso lakho elilawulayo. Ezi zibonelela ngokubona okucacileyo. |
| Iilensi eziPhambili ezijonge phantsi | Ezi zilungele abo benza imisebenzi efuna ukuba bajonge ezantsi, njengabadlali begalufa kunye nabakhweli beentaba. Zenzelwe ukunika umbono ocacileyo xa bejonge ezantsi. |
| Iilensi eziQhelekileyo eziQhelekileyo | Ezi azenzelwe wena ngokukodwa njengeelensi zeprimiyamu. Zezona ntlobo zilula ezenziwe ngokwemilinganiselo eqhelekileyo. Zikwangabizi kakhulu. |
| Iilensi eziNcinci zeCorridor eziNcinci | Ukuba ufuna ifreyimu yeglasi yamehlo encinci, enesitayile, olu lolona hlobo ulufunayo. Nangona kunjalo, ngenxa yokuba ifreyimu incinci, akukho ndawo ingako (ikhorido) yamandla amathathu eelensi. Ke ngoko, kunokubakho ukungakhululeki kokubona. |
| Iilensi eziNqubekela phambili zoTshintsho | Ezi zizinto ezintle kakhulu. Xa ungaphakathi endlwini, zikhanya njengeeglasi eziqhelekileyo. Kodwa xa uphuma elangeni, xa ujongene nemitha ye-UV elangeni, ezi lensi zijika zibe mnyama ngokuzenzekelayo, njengeeglasi zelanga. |
Ziziphi iingenelo zeelensi eziqhubekekayo?
Kukho iingenelo ezininzi kolu hlobo lwesibuko.
- Yonke into inesipili esinye: Le yeyona nzuzo inkulu. Ingxaki yokutshintsha phakathi kwezipili ngokujonga umgama, kufutshane, kunye nokubukela ikhompyutha iphelile. Ungenza wonke umsebenzi wakho ngesipili esinye .
- Akukho ngxaki ingako, kulula: Kulula kangakanani ukunyamekela isibuko esinye kunokunyamekela ezimbini okanye ezintathu? Kufuneka uthathe esinye kuphela xa uphuma. Kukwakho namathuba ambalwa okulibala.
- Inkangeleko: Oku kubalulekile kubantu abaninzi. Ekubeni kungekho migca kwilensi, akukho mntu uya kwazi ukuba unxibe iilensi ezininzi. Ijongeka njengeeglasi eziqhelekileyo. Oku kulungile ngakumbi kubantu abancinci okanye abo bangafuni ukubonisa ukuba bayaluphala.
- Ukuxinezeleka kancinci kwamehlo: Kwiiglasi ezinemigca ethi `Bifocal`, xa ujonga into ekude uze uyijonge kufutshane, uziva umfanekiso utsiba. Akukhululeki emehlweni. Ekubeni amandla eeLensi eziPhambili etshintsha kakuhle, akukho mfanekiso utsibayo. Ke ngoko, umbono wendalo kakhulu kwaye amehlo akadinwa kakhulu.
Ngaba kukho izinto ezilungileyo nezingalunganga?
Njengayo nayiphi na into, kunokubakho iingxaki ezimbalwa ezincinci kwezi, kwaye kulungile ukuzazi nazo.
- Ixabiso eliphantsi kancinci: Iilensi eziqhubekekayo zibiza kancinci kunee-bifocal eziqhelekileyo. Kodwa cinga ngale ndlela: kusenokuba lula ukuthenga ipere enye yeeglasi kunokuthenga iipere ezintathu ezahlukeneyo zeeglasi: enye yokujonga kufutshane, enye yokujonga umgama, kunye nenye yokusetyenziswa yikhompyutha.
- Iinketho zesakhelo ezilinganiselweyo: Ngenxa yokuba amandla amathathu ezi lensi kufuneka abekwe kwindawo efanelekileyo, ilensi ifuna ukuphakama okuthile. Ke ngoko, ezi lensi zisenokungangeni kwisakhelo esincinci kakhulu.
- Umbono wePeripheral ufiphele kancinci:Le yeyona nto inzima abantu abaninzi abayifumanayo ekuqaleni. Xa ujonge phambili, umbono wakho ucacile. Kodwa xa ujonga kwicala elinye ngaphandle kokujika intloko yakho, umbono wakho usenokuba mfiliba kwaye imifanekiso ingabonakala inwebekile emaphethelweni asekunene nasekhohlo eelensi. Kodwa ungakhathazeki, amehlo akho nengqondo yakho ziya kuqhela oku emva kwexesha elithile.
Kuthatha ixesha elingakanani ukuqhelana nesi sibuko?
Lo ngumbuzo obuzwa ngabantu abaninzi. Akukho mpendulo inye kulo mba kuba uyahluka kumntu nomntu.
Abanye abantu banokuziqhela ezi glasi kwiveki enye okanye ezimbini . Kwabanye, kungathatha inyanga okanye ezimbini . Kwiimeko ezingaqhelekanga, umntu usenokungakwazi ukuziqhela kwaphela aze abuyele kwiiglasi zakhe ezindala.
Okufuneka ukwenze kukuqhelisela umonde. Kufuneka uzikhumbuze oku:
- Xa ufuna ukubona kude , gcina intloko yakho ithe tye uze ujonge phezulu kwelensi.
- Xa ufuna ukubona kumgama ophakathi, njengakwikhompyutha , jonga ngaphakathi kwelensi.
- Xa ufuna ukujonga into ekufutshane, njengencwadi okanye ifowuni , phakamisa intloko yakho kancinci, wehlise amehlo akho, uze ujonge ngaphantsi kwelinsi.
Ungakhathazeki. Kwiintsuku ezimbalwa zokuqala, ungaziva unesizungu okanye ungaphilanga kakuhle. Oku kuqhelekile. Emva kwexesha elithile, ingqondo yakho namehlo akho aza kuqhelana nale ndlela intsha yokubona.
Ndifanele ndimbone nini ugqirha?
Nokuba ungumntu omdala okanye ungumntwana, kubaluleke kakhulu ukuba uhlolwe amehlo akho ubuncinane kanye ngonyaka okanye emibini . Amandla amehlo ethu anokutshintsha ngokuhamba kwexesha.
Ukuba ufumana nayiphi na kwezi zilandelayo, qiniseka ukuba ubona ugqirha, ingakumbi ugqirha wamehlo.
- Ukuba umbono wakho utshintsha ngesiquphe.
- Ukuba amehlo akho anamanzi, abomvu, okanye ayarhawuzelela.
- Ukuba uneentloko ezibuhlungu rhoqo.
Xa ufaka iilensi eziqhubekekayo, kubalulekile ukuba uzifake ngendlela eyiyo . Xa ilensi ifakwe kwisakhelo, kufuneka ibekwe ngqo kumbono wakho. Nokuba ngumahluko omncinci wemilimitha unokuba nefuthe elikhulu ekuboneni kwakho. Ngoko ke, soloko uyifakelwa ngugqirha wamehlo oqeqeshiweyo (ingcali yamehlo), ugqirha wamehlo okanye ingcali yamehlo enamava.
Ukuba unomdla kwiilensi eziqhubekekayo, thetha nogqirha wakho ngaloo nto. Uza kuthathela ingqalelo yonke into ukususela kwimeko yamehlo akho ukuya kumsebenzi wakho nakwimisebenzi yemihla ngemihla, aze akuchazele ukuba sesiphi isisombululo esifanelekileyo kuwe.
Umyalezo Wokuya Ekhaya
- Iilensi eziqhubekekayo ziiglasi ezimbini ezikunceda ubone ngokucacileyo kumgama okude, okufutshane, nophakathi ngaphandle kwemigca kwilensi.
- Ezi zisisombululo esilungileyo kwi-presbyopia kunye nezinye iingxaki zokubona ezidla ngokuvela emva kweminyaka engama-40.
- Kuthatha ixesha ukuqhelana nezi glasi, ngoko ke kubalulekile ukuba nomonde kwiintsuku zokuqala ezimbalwa.
- Kubalulekile ukufumana into efanela amehlo nobuso bakho. Soloko ufuna uncedo kwingcali efanelekileyo.
- Ngaphambi kokuba uthathe isigqibo sokuba ezi zinto zikulungele na, thetha ngazo nogqirha wakho wamehlo.
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