"I-Presbyopia" ibhekisa kubunzima bokusebenzisa amehlo kuluhlu olusondeleyo kwiminyaka ethile. Le yinto yokuguga komsebenzi womzimba womntu. Le nto yenzeka kubantu abaninzi abaphakathi kweminyaka engama-40-45. Amehlo aya kuziva ukuba umbhalo wesandla omncinci umfiliba. Kufuneka ubambe ifowuni ephathwayo kunye nephephandaba kude ukuze ubone umbhalo wesandla ngokucacileyo. Kucace ngakumbi ukubona izinto kwimeko yokukhanya okwaneleyo. Umgama wokujonga ifowuni ephathwayo uba mde kwaye ude kunye nobudala.
Xa kubonakala i-presbyopia, kufuneka sinxibe iiglasi zokufunda zamehlo ethu ukuphelisa ukudinwa okubonakalayo. Sifanele sikhethe njani xa sithenga iindondo zokufunda okokuqala?
- 1.Imilo yelensi kufuneka ibe banzi. Ngenxa yempembelelo edibeneyo ye-presbyopia xa kufutshane nombono kunye nemikhwa yokufunda kunye nokubhala, i-axis ebonakalayo yeliso elinye kufuneka ihanjiswe phantsi kunye ne-2.5mm ngaphakathi xa i-lens ikude (intloko-phezulu). Xa ujonga i-head-up, abafundi ngokubanzi bangaphezulu nangaphantsi komgca ophakathi wesheet shape, ngoko ke ukwenzela ukuba iiglasi zokufunda zibe nentsimi eyaneleyo yombono, i-sheet shape kufuneka ihlangabezane nemfuno yokuba ukuphakama okuphezulu kunye nokuphantsi kufuneka kube kukhulu kune-30mm, kungekhona ukuba i-sheet shape encinci, ingcono. Uhlobo lwefilimu emxinwa ngaphakathi kwe-25mm phezulu naphantsi luphathekayo ngokubanzi, kwaye lusetyenziselwa ukuxhaswa kwexeshana lombono.
- 2.Umphambili weeglasi kufuneka ube banzi, kodwa i-OCD (umgama othe tye ukusuka kwiziko le-optical) kufuneka ibe yincinci. Kuba abasebenzisi beeglasi zokufunda bonke bakwiminyaka ephakathi nangaphezulu, banobuso obutyebileyo, ubungakanani obuthe tyaba beeglasi zokufunda buba bukhulu nge-10mm bukhulu kunesakhelo sokukhanya, kodwa umgama okufutshane womfundi yi-5mm mncinci kunomgama we-pupillary, ngoko ke ixabiso le-OCD labasetyhini kufuneka ngokubanzi libe yi-58-61mm ngexesha elifanayo, kuMadoda 61 Kuyimfuneko ukusebenzisa i-lens enkulu yedayamitha kwaye ube neziko elikhulu le-optical intshukumo yangaphakathi xa usenza ilensi.
- 3.Iiglasi zokufunda kufuneka zomelele kwaye zomelele. Iiglasi zePresbyopic ziiglasi ezikufutshane ekusetyenzisweni. Umgaqo wokusetyenziswa kwamehlo kwi-presbyopia kukuba ukususela kwiminyaka engama-40 (+1.00D, okanye i-100 degrees) kumgama wokufunda, kufuneka ixhaswe ngu-+0.50D (oko kukuthi, i-50 degrees) yonke iminyaka emi-5. Ngaphezu koko, ukuphindaphinda ukukhulula kunye nokunxiba ngexesha lokusetyenziswa kuphindwe kaninzi kuneeglasi ze-myopia, ngoko ke iindawo zeeglasi zokufunda kufuneka zibe namandla okanye izinto ezinwebekayo eziphezulu. I-anti-corrosion kunye ne-anti-scratch performance ye-electroplating kufuneka ibe yinto ebalaseleyo, kwaye inkqubo yokuqina kwelensi kufuneka ibe yinto enhle. Ngokubanzi, kufuneka kuqinisekiswe ukuba ayisayi konakala kakhulu, irulwe, okanye ikhuhlwe kwisithuba seminyaka emi-2 yokusetyenziswa. Enyanisweni, kula manqaku, iimfuno zeeglasi ze-presbyopic ezilungileyo ziphezulu kunezakhelo zeglasi zebakala elifanayo.
Luluphi uhlobo lweeglasi ze-presbyopia zokukhetha ezibaluleke kakhulu kubantu abanxiba iiglasi okokuqala, kuba umntu ngamnye unomahluko ngamnye, njengobude obuhlukeneyo, ubude bengalo, imikhwa yamehlo, kunye neqondo le-presbyopia emehlweni lihlukile. I-presbyopia yamehlo asekhohlo nasekunene Idigri inokuthi ihluke, kwaye abanye abantu baneengxaki zombono ezifana ne-hyperopia, ukubona kufutshane, kunye ne-astigmatism ngexesha elifanayo ne-presbyopia. Ukuba unxiba iiglasi zokufunda ezingafanelekanga kwimeko yamehlo akho ixesha elide, kungekhona nje kuphela ukuba akuyi kusombulula ingxaki, kodwa kuya kubangela iingxaki ezifana nokudumba kwamehlo kunye neentloko. Ngoko ke, xa ingxaki ye-presbyopia isenzeka, kufuneka siqale siye kwisebe eliqhelekileyo le-ophthalmology okanye i-optical shop ye-Optometry, kwaye ekugqibeleni sikhethe iiglasi ezifanelekileyo ze-presbyopia ngokwemeko yethu.
Ukuba ufuna ukwazi ngakumbi malunga nefashoni yeglasi kunye nothethwano lweshishini, nceda undwendwele iwebhusayithi yethu kwaye uqhagamshelane nathi nangaliphi na ixesha.
Ixesha lokuposa: Jul-19-2023