Kwirediyasi ugobile lens

Yintoni na owela ngaphakathi kwama-ugobile lens? Indlela ukubala ngayo? Lo mbuzo unikwa wonke umntu egqiba ukunxiba iilensi contact ngenxa yokubetha mbono, waza wabathuma kungena yokukhanya. Impendulo ngqo lo mbuzo ukunika kuphela zamehlo yobungcali. Ukuba owela ngaphakathi kwama-ugobile lens uya ubuthwe ephosakeleyo, uba sengozini kuphela ukuphucula umbono, kodwa kwenza kube kubi. Amehlo akho aya kuba kugula, baya kufumana uxinezeleko, kwaye - ukungaphatheki rhoqo.

Kwirediyasi esime lens isngenayo umntu othile, oko kuxhomekeke isakhiwo lweliso lakho. Ilens nenxitywa kwi inwebu ye iliso, kwaye kufuneka ke ngoko phinda ifomu yayo ngokuchanekileyo kangangoko kunokwenzeka. Ubukhulu Standard lweliso lakho unamalunga ezi zikhombisi zilandelayo:

ubude esqwini woqondo-24 mm,

ubude ikhweyitha ocular yi 23.6 mm,

kwaye ubukhulu nkqo 23.4 mm.

Ukuze umntu indices eziqhelekileyo ezifana ezinqwenelekayo ugobile owela ngaphakathi kwama-lens ngu 8.6. Lens kunye ekwandiseni ka-8.3 ukuya 8.8 kulula ukufumana kwimalike kawonkewonke. Ukuba ezinxaxhileyo ebalulekileyo ukusuka kumaqondo eqhelekileyo ukukhangela iimveliso ezenziweyo ukuba odola iilensi contact. Kuyimfuneko ukwenza mzobo lens efunekayo kwi-thethwano lwangaphakathi kunye zamehlo.

Njengogqirha umisela ugobile radius efanelekileyo lens? Ukulungiselela le njongo, kukho indlela ekhethekileyo ebizwa autorefractometry. Oculist liqhuba isifundo inwebu yikhompyutha iindlela diagnostic. Le nkqubo uthatha imizuzu nje embalwa. Le ndlela isekwe phezu autorefractometry siseko radiation isixhobo yokukhanya infrared. Abenzi boluvo esisigxina umfanekiso umqadi ukuya ukubonakaliswa kwayo ukusuka kwiretina emva kwayo. Iziphumo zophononongo lwe retina ulwazi oluninzi luncedo umntu oza kuthenga lenses. Embindini amagophe - oku nje ngenye, le nkqubo kwakhona kunika uluvo lokuba umahluko impazamo zokunganyangeki phakathi kwamehlo ezimbini wathi, kwaye imisela mali astigmatism. Njengoko indawo ephezulu wasebenzisa umfanekiso ngamabona akude.

Kufuneka wenze ntoni xa ilens sele kuthengwa, kwaye awuyithandi kwirediyasi ugobile lens? Ukuba umahluko ngaphantsi kwe 0.2, oogqirha ukucebisa ukuzama iilensi banxibe ukuba le nto ayikho uvalo. Amaninzi omnye lens umenzi kunye embindini ugobile kunxibelelana 8.5 ukuya lens kwenye olwaziwa nge 8.6 radius. Ukuba kuphambuka kune 0.2, ezi lenses ayikwazi ukuba zinxitywe kuyo nayiphi na imeko!

Ziziphi iimpawu kunye nobunzima ofunyenwe abantu benxibe iilensi ke, musa ilingane? Ukuba umntu ubeka phezu lens khaxa kunokuba kufunwa yi isakhiwo kwamehlo akhe, nokushukumisa lens kunzima. Yeso ziya kuba phantsi koxinzelelo rhoqo, imithambo yegazi ziye constricted, nto leyo ngokuqinisekileyo ukuba anozizi emehlweni abantu bonke. Kunokwenzeka ukuhlukunyezwa slezoobmena nje iinyembezi ayinako le ndebe ukudlula ngemehlo, nto leyo ngokusondeleyo ezikufutshane inwebu. izifo ukudumba usongo ukwandisa kunye nombono uba ezingazinzanga. Ukuba, ke, kwirediyasi ugobile ilens phezu salathisi ofunekayo, ilens iya kuba mobile kakhulu. Kusenokuba lula iwe yamehlo okanye unobangela ukukrazula, kakubi i inwebu. Lens caba kulula ukuba kude ukusuka inwebu, kwaye akusayi kubona phantse nto. Uya kuba buhlungu ukuba idanyaze, kuba ilens uya ukuchukumisa izihlunu iliso eliphezulu, yaye lonke ixesha ungena iliso iinkozo emihle isanti, okanye amehlo isibi eso siya nangenjinana kunye redden.

Khetha zamehlo kunye oyi efanelekileyo ugobile lens kanye ujonge ihlabathi amehlo! Ukubona kwaye hyperopia - akukho sizathu ukushiya uyolo zonke iintyatyambo kunye nemibala yobomi. Fumana lens umfowunelwa, nto leyo eza kuba lula kuwe.