ISikhokelo sokuSetyenziswa kunye nokuKhetha iiglasi zokuFunda

Ukusetyenziswa kweeglasi zokufunda

Iiglasi zokufunda, njengoko negama lisitsho, ziiglasi ezisetyenziselwa ukulungisa ukubona kude. Abantu abane-hyperopia bahlala benengxaki yokujonga izinto ezikufutshane, kwaye iiglasi zokufunda ziyindlela yokulungisa kubo. Iiglasi zokufunda zisebenzisa uyilo lwe-convex lens ukujolisa ukukhanya kwiretina, ukunceda izigulane zibone izinto ezikufutshane ngokucacileyo.

Ukongeza ekulungiseni ukubona kude, iiglasi zokufunda zingasetyenziselwa ukulungisa i-myopia. Kwizigulane ezine-myopia ephakathi, iiglasi zokufunda zinokubonelela ngolungiso oluthile. Iilensi zeeglasi zokufunda zenzelwe ukukhokela ukukhanya phambi kweretina, ngaloo ndlela zilungisa umbono.

Indlela yokukhetha iiglasi zokufunda ezikufanelayo

Xa ukhetha iiglasi zokufunda, kufuneka uqwalasele le miba ilandelayo:

1. Izinto eziphathekayo

Izinto zokufunda iiglasi zinempembelelo enkulu kumgangatho kunye nentuthuzelo yeeglasi. Izinto eziqhelekileyo ziquka iplastiki, isinyithi.

Iiglasi zokufunda ezenziwe ngeplastikizikhaphukhaphu kwaye ziyaxhathisa, kodwa zinokuchaphazela ukusebenza okuchasene nokudinwa kweeglasi.Iiglasi zokufunda ngesinyithiziyakwazi ukumelana nokudinwa, kodwa zinokuba nzima kwaye zithande ukukrweleka.

2.Uhlobo lwesakhelo

Uhlobo lwesakhelo sokufunda iiglasi nazo zinempembelelo enkulu ekuzinzeni nasekuthuthuzelekeni kweeglasi. Iintlobo zesakhelo eziqhelekileyo ziquka isakhelo esipheleleyo,isakhelo sesiqingatha kunye nesakhelo.

Ububanzi befreyimu yeeglasi zokufunda ezipheleleyo zikhulu, ezinokubonelela ngenkxaso engcono, kodwa inokuchaphazela ukubonakala. Iiglasi zokufunda zesiqingatha sesiqingatha zinesakhelo esibanzi esiphakathi kwaye zinokubonelela ngentsimi engcono yokujonga, kodwa zisenokungazinzi ngokwaneleyo. Iiglasi zokufunda ezingenasiphako zibonelela ngenkululeko enkulu kunye nobuhle, kodwa zisenokungazinzi ngokwaneleyo.

3.Isidanga

Amandla okufunda iiglasi ayafana nalawo eeglasi eziqhelekileyo, kuquka i-myopia kunye nokubona kude. Xa ukhetha iiglasi zokufunda, kufuneka ukhethe amandla afanelekileyo ngokwemeko yakho yombono.

Ukuqukumbela

Iiglasi zokufunda luhlobo lweeglasi ezinokunceda abantu balungise iingxaki zamehlo. Xa ukhetha iiglasi zokufunda, kufuneka uqwalasele izinto ezifana nezinto eziphathekayo, uhlobo lwefreyimue, amandla, kunye nophawu lokukhetha iiglasi ezikufanelayo. Ukunxiba iiglasi zokufunda ngokuchanekileyo kunokunceda abantu baziqhelanise ngcono nobomi kunye nomsebenzi.

Ukuba ufuna ukwazi ngakumbi malunga nefashoni yeglasi kunye nothethwano lweshishini, nceda undwendwele iwebhusayithi yethu kwaye uqhagamshelane nathi nangaliphi na ixesha.