Kungani izibuko zelanga zivikela amehlo?

Ukulimala kwemisebe ye-ultraviolet

Kunezinhlobo ezintathu zemisebe ye-ultraviolet ekukhanyeni kwelanga: i-UVA, i-UVB, ne-UVC. I-UVC ivamise ukumuncwa umkhathi womhlaba, kuyilapho i-UVA ne-UVB zikhanyiswa ngokuqondile phansi. Ukuchayeka isikhathi eside kule misebe ye-ultraviolet kungabangela ukulimala okuhlukahlukene emehlweni, okuhlanganisa:

1. I-Photokeratitis:

Lokhu ukuvuvukala kobuso beso okubangelwa i-UVB, okufana nokushiswa yilanga esikhumbeni.

2. I-Cataract:

Ukuchayeka isikhathi eside emisebeni ye-ultraviolet kwandisa izehlakalo ze-cataract futhi kubangela ukungaboni kahle.

3. Ukonakala kwe-macular:

I-UVA ne-UVB zisheshisa ukuwohloka kwendawo ye-macular futhi kuthinte kakhulu ukubona okumaphakathi.

4. I-Pterygium:

Lokhu ukukhula ku-cornea okubangelwa ikakhulukazi ukugqugquzelwa kwe-ultraviolet futhi kungase kudinge ukwelashwa ngokuhlinzwa.

Indlela yokuvikela yezibuko zelanga

Izibuko zelanga zekhwalithi ephezulu zingavimba ngempumelelo u-99% kuya ku-100% wemisebe ye-UVA ne-UVB, ngaleyo ndlela zehlise umonakalo oqondile wale misebe eyingozi emehlweni. Umthelela wokuvikela wezibuko zelanga ubonakala kakhulu kulezi zici ezilandelayo:

1. Ukuvimbela imisebe ye-UV:

Izibuko zelanga zekhwalithi ephezulu zizobonisa izinga lazo lokuvikela i-UV400, okusho ukuthi zingavimba yonke imisebe ye-ultraviolet ngobude obungaphansi kwama-nanometer angu-400.

2. Ukunciphisa ukuxhopha:

Amalensi anemibala anganciphisa ukukhanya okuvela endaweni eyisicaba (njengamanzi, iqhwa, njll.), athuthukise ukunethezeka kokubonwayo nokucaca.

3. Vikela isikhumba eduze kwamehlo:

Isikhumba esizungeze amehlo sincane futhi silinyazwa kalula yimisebe ye-ultraviolet. Ukugqoka izibuko zelanga kunganikeza isivikelo esengeziwe futhi kunciphise ingozi yokuba nemibimbi nomdlavuza wesikhumba.

4. Vimbela ukukhathala kwamehlo:

Ukukhanya okuqinile kungabangela ukuba inhlamvu yeso ifinyele, kwandise umthwalo emisipha yamehlo, futhi kubangele ukukhathala kwamehlo isikhathi eside. Izibuko zelanga zinganciphisa amandla okukhanya futhi zenze amehlo akhululeke kakhudlwana.

Indlela yokukhetha izibuko zelanga ezifanele

Ukukhetha izibuko zelanga ezifanele akufanele kucabangele imfashini yabo kuphela, kodwa futhi unake umsebenzi wabo wokuzivikela. Amathiphu alandelayo angakusiza wenze ukukhetha okufanele:

1. Hlola ilebula yokuvikela i-UV:

Qiniseka ukuthi izibuko zelanga zinelebula yokuvikela ye-UV400 engavimba yonke imisebe ye-ultraviolet eyingozi.

2. Khetha umbala welensi ofanele:

Amalensi ampunga anganciphisa ukukhanya okuphelele ngaphandle kokushintsha umbala, kuyilapho amalensi ansundu ne-amber angakhuphula ukugqama nokubona ukujula, okufanelekela imidlalo yangaphandle.

3. Cabangela impahla yelensi:

Amalensi e-polycarbonate alula futhi amelana nomthelela, afanelekela ezemidlalo nokusetshenziswa kwansuku zonke.

4. Qinisekisa ukumbozwa okugcwele kwamalensi:

Amalensi amakhulu nemiklamo yokugoqa inganikeza ukuvikeleka okungcono futhi ivimbele imisebe ye-ultraviolet ukuthi ingangeni isuka emaceleni.

Izibuko zelanga azizona nje isesekeli semfashini, kodwa futhi nesidingo sokuvikela impilo yamehlo. Khetha izibuko zelanga zekhwalithi ephezulu ukuze unikeze amehlo akho isivikelo esingcono kakhulu ngenkathi ujabulela ilanga.