Ugqirha lakho kwamehlo luyakhuthaza ukukhanya kwamagumbi okukhanya ukukhusela amehlo akho kwimimangaliso ekhanyayo yomsindo ephuma elangeni, kuba ukukhanya kwe-ultraviolet kunokufaka isandla ekuphuhlisweni kweekhenyeri, i-cataract, i-pinguecula kunye ne-pterygium. Kodwa kuthekani malunga nomyinge we-blue wave of light? Ukukhanya okuBlue kungabangela umonakalo ochaphazelekayo emehlweni, kwaye kungadlala indima ebalulekileyo ekwenzeni ukuguqulwa kwama-macular ahlobene neminyaka, oku kungaholela ekulahlekeni kombono obalulekileyo.
Njengoko ukhusela amehlo akho kwimiphumo emibi yowokukhanya kwe-ultraviolet, ngaba ufanele uwakhusele ekukhanyeni okwesibhakabhaka?
Ezisiseko
Amehlo akho anyanzelekile kwiqela elincinci lee-frequencies ekuthethwa ngalo ngokuthi "ukukhanya okubonakalayo." Ukukhanya okukhanya okubonakalayo okunokubonwa ngamehlo omntu-kuqukethe ubuninzi bomyinge obude obude. Ukukhanya okuluhlaza okwesibhakabhaka kunomyinge omfutshane kakhulu kwaye ubonakala ngamehlo abantu. Akukona nje ukubonelela ukukhanya okusisiseko kwihlabathi lethu, ukukhanya okwesibhakabhaka kunceda ukwandisa iimvakalelo zentlalo-ntle. Kodwa ukubonakaliswa kweemali ezinkulu zokukhanya okwesibhakabhaka kungonakalisa amehlo.
Imithombo
I-plethora yezixhobo zombane ezisetyenziswayo namhlanje, njengeefowuni, iipilisi, kunye neekhomputha zeekhomputha, ziye zandisa kakhulu ukukhanya kwethu ngokukhanya okwesibhakabhaka. Enye imvelaphi yokukhanya okwesibhakabhaka iteknoloji esebenzayo yamandla ngendlela ye-bulbs light bulbs kunye nezibane ze-LED. Uphando luzimisele ukuba i- lens ngaphakathi kweso, kunye ne-pigment ngasemva kweso, linikezela ukhuseleko olukhanyayo.
Kodwa le ndlela yokukhusela iphela ixesha elifutshane lokubhenca ukukhanya okuluhlaza okwesibhakabhaka, kunye neeyure zomini.
Ukukhanya okuBlue kunye ne-Macular Degeneration
Mhlawumbi isongelo esikhulu sokukhanya okwesibhakabhaka yendima edlala kuyo ekuphuhlisweni kwe -macular-degeneration enxulumene nobudala , ngokukodwa ngendlela ye-photo-oxidation.
Abantu abanomngcipheko ophezulu wesifo kufuneka ba khusele amehlo abo kwi-exposed exposure light. Abanye oogqirha bacebisa i-halogen izibane njengenye indlela yokukhanyisa.
Kungekudala, inkampani ebizwa ngokuthi i-Eye Solutions iye yavelisa umkhiqizo ukusikhusela ekukhanyeni okwesibhakabhaka-kungekhona nje ngaphandle, kodwa nangaphandle. I-lens ibizwa ngokuba yi-Blu-Tech lens kwaye iqukethe i-pigment ehlunga ukukhanya okwesibhakabhaka ngaphandle kokuphazamisa umbala. Oku kunokuba lukhetho olukhulu kubantu abanokukhubazeka kwe-macular okanye abo basengozini yokuphuhlisa eso sifo. Kwakhona kubalulekile ukuba abantu abanobuchopho be-cataract ekubeni i- lens intraocular efakwe ngexesha lotyando lwe-cataract alinakho ukukhuselwa ngokubanzi ngokukhanya okwesibhakabhaka.
Ukukhanya okuBlue kunye neMelatonin
I-Melatonin yi-hormone yokulala emizimbeni yethu eyanceda ukulawula iziqulatho zethu ze-circumcadian. Amehlo ethu anokuqulethe i-receptors equlethe i-photopigment ebizwa ngokuthi i-melanopsin ejongene nokukhanya okwesibhakabhaka. Ezi iiseli zinika ulwazi kumzimba wethu olawula ingqondo yethu imini nobusuku. Ukukhanya okuBlue kuboniswe ngabaphandi ukuba bakhulise ingqwalasela kunye nemizwelo emini, kodwa ukunyanzeliswa okungapheliyo ekukhanyeni ngobumnyama ebusuku kunokunika imiyalezo kwingqondo yethu ukunciphisa ukukhuselwa kwe-melatonin, okusixelela ukuba siphakamise size siqaphele isigqirha se circadian.
Oko Okufanele Uyazi
Nangona ukukhanya okwesibhakabhaka kuhlanganiswe ngokukodwa nomngcipheko wokwanda komhlaza, isifo sikashukela, isifo senhliziyo, ukukhuluphala, kunye nokuphazamiseka kwisigqi se-circadian, ihlala yinto ebalulekileyo yendalo yokukhanya kunye nokukhanya. Buza i-optometrist okanye i-ophthalmologist ukuba unomngcipheko othile kwiimeko zamehlo ezinokuthi zidibaniswe nokukhanya okukhanyayo. Oku kudla ukuquka ukuhlaziywa kwembali yakho yentsapho kunye nokuhlolwa kwamehlo e-retinal dilated.
Njengamaxesha onke, gcina iingcebiso ezilandelayo engqondweni kwi-UV eye protection:
- Ukunciphisa ukukhanya kwelanga xa kunokwenzeka.
- Gqoba iinqanaba ezibanzi-brim ngelixa elangeni.
- Khawucinge nge-lens mellyin pigmented polarized lens. Nangona kunokubangela utshintsho kumbono wembonakalo, lucutha ukukhanya kwebala lokukhanya okuluhlaza okwangaphandle.
- Ukunciphisa ukukhanya kokukhanya okwesibhakabhaka ngokugcina izixhobo zedijithali ngaphandle kwegumbi lokulala.
- Ukunciphisa ukukhangela kwi-intanethi kusihlwa ukunciphisa ukukhanya okwesibhakabhaka kwikhompyutheni yakho kunye neenguqu ezinokuthi zenzeke kwisigqi sesigcawu.
Imithombo:
> Tolentino, uMichael > kunye noGary Morgan. Ukubaluleka kwezixhobo zecomputer, i-"green" i-bulbs ikhulisa ukukhanya okukhanyayo. IiNkcazo zeNkcazo zeOptometry News, ngo-Okthoba 2012, iphepha 18-19.
> Rozanowska, M et al. I-reactivity ye-blue-recting ye-red pigment. Isizukulwane se-in vitro se-oxygen-effect reactive. Umbhalo we-Biological Chemistry, 11 Agasti 1995, iphepha 18825-30.