Zilungele ntoni iiglasi zelensi ezuba?

Kwiminyaka yakutshanje, blueilensiiiglasi zifumene ukuthandwa ngenxa yeenzuzo zazo ezinokubakho kwimpilo yamehlo kunye nempilo yonke. Ezi glasi zenzelwe ukuhluza ukukhanya okuluhlaza okwesibhakabhaka okukhutshwa zizikrini zedijithali, izibane ze-LED kunye neminye imithombo yokukhanya, ngenjongo yokunciphisa ubunzima bamehlo kunye nokunciphisa umonakalo onokuthi uvele kwixesha elide ekukhanyeni okuluhlaza okwesibhakabhaka. Nangona ukusebenza kweeglasi ze-blue lens kuhlala kuyisihloko sophando oluqhubekayo kunye neengxoxo-mpikiswano, abantu abaninzi baye babika amava amahle ngokusebenzisa ezi glasi, okukhokelela ekukhuleni komdla kwiinzuzo zabo ezinokwenzeka.

Esinye sezizathu eziphambili zokuba abantu bakhethe ukunxiba iiglasi zelensi eluhlaza kukukhulula ubunzima bamehlo edijithali. Ngokusetyenziswa ngokubanzi kwezixhobo zedijithali ezinjengeekhompyuter, ii-smartphones, kunye neetafile, abantu abaninzi bachitha ixesha elininzi phambi kwezikrini yonke imihla. Ukuvezwa ixesha elide ekukhanyeni okuluhlaza okukhutshwa zezi zixhobo kunokubangela iimpawu ezinjengobunzima bamehlo, ukoma, kunye nokungahambi kakuhle, okubizwa ngokuba yi-digital eye strain okanye i-computer vision syndrome. Kukholelwa ukuba iiglasi zelensi eluhlaza zinokunceda ukunciphisa ezi mpawu ngokucoca ukukhanya okuluhlaza okwesibhakabhaka, ngaloo ndlela kuthomalalisa ubunzima bamehlo xa ujonga izikrini ixesha elide.

Ukongeza ekujonganeni noxinzelelo lwamehlo edijithali, iiglasi ze-lens eziluhlaza zikhuthazwa njengendlela yokukhusela amehlo kumonakalo onokubakho wexesha elide ukusuka ekuvezweni kokukhanya okuluhlaza okwesibhakabhaka. Olunye uphando lubonisa ukuba ukuchanabeka ixesha elide kukukhanya okuluhlaza, ngakumbi ebusuku, kunokuphazamisa umjikelo wendalo womzimba wokuvuka ngokuthintela ukuveliswa kwemelatonin, ihomoni elawula ukulala. Oku kuphazamiseka kunokwenza kube nzima ukulala kwaye kukhokelela kumgangatho ophantsi wokulala. Ngokunxiba iiglasi ezibhlowuIilensi, abantu banokunciphisa impembelelo yokukhanya okuluhlaza okwesibhakabhaka kwisigqi sabo se-circadian, abanokuphucula iindlela zabo zokulala kunye nempilo yonke.

Ngaphezu koko, iiglasi zelensi eziluhlaza zisoloko zicetyiswa kubantu abaxhalabileyo malunga neziphumo ezinokubakho zokukhanya okuluhlaza okwesibhakabhaka kwimpilo yeretina. Uphando lubonisa ukuba ukukhanya okuluhlaza okwesibhakabhaka, ngakumbi kuluhlu oluphezulu lwamandla, kunokubangela uxinzelelo lwe-oxidative kwi-retina, enokunyusa umngcipheko we-macular degeneration (AMD) enxulumene neminyaka kunye nezinye izifo ze-retinal. Ngelixa ubungqina malunga neziphumo zexesha elide zokukhanya okuluhlaza okwesibhakabhaka kwimpilo ye-retinal zisavela, abanye abantu bakhetha ukunxiba iiglasi zelensi eluhlaza njengenyathelo lokunciphisa ukukhanya okuluhlaza okwesibhakabhaka kunye nokukhusela amehlo abo kumonakalo onokwenzeka.

Kufanelekile ukuqaphela ukuba ukusebenza kweeglasi zelensi eluhlaza ekujonganeni nale miba kuhlala kungumxholo wophando oluqhubekayo kunye nophando lwezenzululwazi. Ngelixa abantu abaninzi bexela ukucutha kwamehlo okucuthayo kunye nentuthuzelo ephuculweyo xa besebenzisa iiglasi zelensi eluhlaza, indlela ezi glasi zinciphisa ngayo iziphumo zexesha elide zokuvezwa kokukhanya okuluhlaza awuqondwa ngokupheleleyo. Ke ngoko, kubalulekile ukuba abantu abajonga ukunxiba iiglasi zelensi eziluhlaza basondele kwisihloko ngengqondo ebalulekileyo kwaye badibane nengcali yokhathalelo lwamehlo ukwenza isigqibo esinolwazi malunga nempilo yamehlo abo.

Isishwankathelo, iiglasi zelensi eziluhlaza zifumana ingqalelo kwiingenelo zazo ezinokubakho ekunciphiseni ubunzima bamehlo edijithali, ukunciphisa impembelelo yokukhanya okuluhlaza kwiipateni zokulala, kunye nokukhusela amehlo kumonakalo onokuthi ube nexesha elide ohambelana nokuvezwa kokukhanya okuluhlaza okwesibhakabhaka. Ngelixa ubungqina besayensi obuxhasa ezi nzuzo zisavela, abantu abaninzi bafumanisa ukuba ukunxiba iiglasi zelensi eziluhlaza kunika isiqabu kunye nentuthuzelo xa bejonga izikrini ixesha elide. Njengoko uphando kule ndawo luqhubela phambili, kubalulekile ukuba abantu ngabanye baqonde izibonelelo ezinokubakho kunye nezithintelo zelensi yamehlo eluhlaza kwaye bafune isikhokelo sobuchwephesha xa besenza izigqibo malunga nempilo yamehlo abo.