Kule mihla, abantu abaselula abaninzi bavakalelwa kukuba ukunxiba iiglasi ezinkulu kunokwenza ubuso babo bubonakale buncinci, nto leyo ethandwayo kwaye inemfashini. Nangona kunjalo, basenokungazi ukuba iiglasi ezinkulu zihlala zizezinye zezizathu zokuwohloka kombono kunye ne-strabismus. Enyanisweni, ayingabo bonke abantu abafanelekileyo ukunxiba iiglasi ezinkulu! Ingakumbi kubantu abanomgama omde phakathi kwabantwana kunye ne-myopia ephezulu!
Iingcebiso zeLens kunye nokuCwangcisa
1. Indawo ephakathi ye-optical yazo zonke iilensi kufuneka ibe sembindini welensi.
2. Ububanzi bee-blanks zelensi buhlala buphakathi kwe-70mm-80mm.
3. Umgama phakathi komntwana kwabasetyhini abaninzi abadala uqhele ukuba phakathi kwama-55mm nama-65mm, kwaye malunga nama-60mm yeyona ixhaphakileyo.
4. Nokuba ingakanani na ifreyimu, ngexesha lokucubungula, indawo ephakathi yelensi kufuneka isuswe ngokufanelekileyo ukuze ihambelane nomgama womntu phakathi kwabantwana kunye nobude bomfundi.
Iiparameter ezimbini ezibalulekileyo ekufakweni kweelensi zii-diopter kunye nomgama phakathi kwabantwana. Xa kufakwa iiglasi ezinkulu zefreyimu, ingakumbi iparameter yomgama phakathi kwabantwana kufuneka iqwalaselwe. Umgama ophakathi kweziko leelensi ezimbini kufuneka uhambelane nomgama phakathi kwabantwana; kungenjalo, nokuba umyalelo uchanekile, ukunxiba iiglasi kunokubangela ukungakhululeki kwaye kuchaphazele umbono.
Iingxaki Ezibangelwa KukunxibaIsakhelo Esikhulu KakhuluIiglasi
Isakhelo senza umsebenzi wokuzinzisa, sivumela iilensi ukuba zibe kwindawo efanelekileyo yokusebenza ngokufanelekileyo, ngoko ke ukuzinza kubalulekile. Iiglasi ezinkulu zesakhelo, ngenxa yeelensi zazo ezinkulu, zinokuba nefuthe elithile emehlweni, nto leyo ekhokelela ekungonwabini ukuba zinxitywe ixesha elide.
Iiglasi ezinkulu ezifakwe kwifreyimu zinokuba nzima, kwaye ukuzinxiba ixesha elide kunokubangela uxinzelelo olukhulu kwimithambo-luvo ekwibhulorho yempumlo nakwiindawo ezijikeleze amehlo, nto leyo ebeka uxinzelelo olukhulu kwimisipha yamehlo kwaye ikhokelele ekudinweni kwamehlo. Ukuguguleka ixesha elide kunokubangela ukudumba kwamehlo, iintloko ezibuhlungu, ukuba bomvu, kunye noxinzelelo lwamehlo. Ukongeza, abantu abanxiba iiglasi ezinkulu ezifakwe kwifreyimu banokufumanisa ukuba ukujonga phantsi okanye ukunyakaza kwentloko ngequbuliso kunokubangela ukuba iiglasi ziphume lula.
Iiglasi ezinkulu kakhulu ezifakwe kwifreyimu enkulu nazo zinokuchaphazela inkangeleko yabantu. Ukunxiba iifreyimu zeglasi ezinzima kakhulu kunokubangela ukugqwetheka kobuso, ngakumbi okuchaphazela ibunzi, ibhulorho yempumlo, kunye nesilevu ngandlela ithile. Ngexesha lenkqubo yokunxiba iiglasi, ukuba umntu unamehlo amancinci, ifreyimu yeglasi inokucinezela amehlo, iwenze abonakale emancinci; ukuba umntu unamehlo amakhulu, iifreyimu zeglasi ezinzima kakhulu zinokwenza amehlo abonakale emakhulu nangakumbi.
Umba woMgama oPhakathi koMntwana kunyeIsakhelo Esikhulu KakhuluIiglasi
Iilensi ezinkulu kakhulu zeeglasi ezinkulu ezikwifreyimu zinokwenza kube nzima kwiziko elibonakalayo ukuba lihambelane nomgama wokwenyani womntu ophakathi kwabantwana. Ifreyimu enkulu yeeglasi idla ngokubangela ukuba iziko elibonakalayo leelensi libe likhulu kunomgama ophakathi kwabantwana abangaboniyo, nto leyo ebangela ukungalungelelani phakathi kweziko elibonakalayo leelensi kunye neendawo zabantwana abangaboniyo. Oku kungalungelelani kunokukhokelela kwiimpawu ezinje ngokuncipha kombono, i-strabismus, isiyezi, kwaye okukhona umntu ezinxiba ixesha elide, kokukhona amathuba okuba abonakale esanda.
Ukongeza, kubalulekile ukuqaphela ukuba amandla okujikajika kwiindawo ezahlukeneyo zelensi awafani. Ngokwesiqhelo, amandla okujikajika embindini welensi aphantsi kancinci kunalawo akwicala lelensi. Ukugxila kwethu kusekelwe embindini welensi, ngoko ke ukunxiba iiglasi ezinkulu rhoqo kunokukhokelela ekubeni iiglasi ziwele phantsi ngenxa yobunzima bazo. Oku kunokubangela ukungalungelelani phakathi kokugxila komfundi kunye nombindi welensi, okubangela ukuphazamiseka kokubona kunye nokuqhubeka kokuncipha kombono.
Kwenziwa kanjaniCfaka i-hoopRukukhanyaGiilassesFiRame?
1.Ikhaphukhaphu, kokukhona ikhaphukhaphu ingcono. Isakhelo esikhaphukhaphu singanciphisa uxinzelelo empumlweni, nto leyo eyenza ikhululeke!
2. Akulula ukuguquguquka, kubaluleke kakhulu! Iifreyimu eziguquguqukayo azichaphazeli ubomi bomntu kuphela kodwa zikwachaphazela nokulungisa umbono.
3. Umgangatho ogqwesileyo, okubaluleke nangakumbi. Ukuba ifreyimu ayisemgangathweni, inokuba sengozini yokuqhekeka nokutshintsha umbala, nto leyo echaphazela ngokuthe ngqo ukuqina kwefreyimu.
4. Ukuhambelana kobuntu, okubaluleke kakhulu. Iimpawu zobuso zomntu ngamnye zahlukile, nokuba bubuso obupheleleyo okanye obuncinci, ibhuloho yempumlo ephezulu okanye esezantsi, okanye ukungalingani phakathi kweendlebe nobuso basekhohlo nasekunene, okukhokelela ekunxibeni ngendlela engafanelekanga. Ke ngoko, kubalulekile ukukhetha ifreyimu efanela iimpawu zakho zobuqu.
Iingozi zeGii-irlsCukufunxaUbukhulu obugqithisileyo GiilassesFii-rames
1. Uninzi lwamantombazana luneemigama eziphakathi kwabantwana abancinci kunamadoda, nto leyo ekhokelela kwiingxabano phakathi kwemigama emincinci phakathi kwabantwana abancinci kumantombazana kunye neefreyimu ezinkulu zeglasi, nto leyo ebangela iingxaki emva kokulungiswa kwelensi:
2. Xa ifreyimu inkulu kakhulu kwaye umgama phakathi kwabantwana umncinci, ukufuduka kwelensi akwanelanga, nto leyo ebangela ukuba iziko le-optical leeglasi ezigqityiweyo libe likhulu kunomgama wangempela phakathi kwabantwana, nto leyo ekhokelela kwiingxaki ezahlukeneyo xa zinxitywa.
3. Nokuba umgama phakathi kwabantwana ucutshungulwa ngokuchanekileyo, ukufuduka kwelensi kuya kufikelela kweyona ndawo ityebileyo emaphethelweni, nto leyo ebangela ukuba iiglasi ezigqityiweyo zibe nzima kakhulu. Oku kunokubangela ukubonakala kwemiphumo ye-prismatic emaphethelweni, nto leyo enokubangela ukuba zingakhululeki ukunxiba kwaye mhlawumbi ikhokelele kwisiyezi nezinye iimpawu.
Iingcebiso zeFukutshizaUbukhulu obugqithisileyo GiilassesFii-rames
1. Kubantu abaneempazamo eziphakathi ukuya kweziphezulu zokujika, ukukhetha iifreyimu ezinkulu kakhulu akunakuyisombulula ingxaki yeemiphetho ezixineneyo zeelensi, nokuba i-refractive index ephezulu yeelensi ezikhethiweyo ingakanani na. Nokuba i-myopia degree iphantsi, imiphetho yeelensi iya kuhlala ixinene.
2. Xa ukhetha iiglasi ezinkulu zefreyimu, kuyacetyiswa ukuba ukhethe izinto ezikhaphukhaphu ezifana ne-TR90/intsimbi ye-titanium/intsimbi yeplastiki kunokuba usebenzise izinto zepleyiti (ezinzima). Imilenze yefreyimu akufuneki ibe mncinci kakhulu, njengoko iifreyimu ezinzima ngaphambili nezikhanyayo ngasemva zinokubangela ukuba iiglasi zityibilike rhoqo.
Wonke umntu ufuna ukuba nenkangeleko entle, kodwa nceda ungalibali ukuba impilo yamehlo yeyona nto ibalulekileyo. Ukuba awuyihoyi injongo yokulungisa umbono ngenxa yoko kuthiwa "bubuhle," uze ekugqibeleni ubangele ezinye izifo zamehlo, kuya kuba yingozi kakhulu.
Xa ukhetha iifreyimu zeglasi, ukongeza ekuqwalaseleni imo yobuso bakho, isitayile seenwele, umbala wolusu, njl.njl., kubalulekile ukuba uqwalasele imeko yamehlo akho kwaye ukhethe iifreyimu ezikufaneleyo. Kuphephe ukukhetha iifreyimu ezinkulu kakhulu ezidumileyo, kuba oku kunokukhokelela kwiingxaki zokubona ezingeyomfuneko.
Ixesha leposi: Juni-28-2024