A cewar alkaluman Hukumar Lafiya ta Duniya (WHO), adadin mutanen da ke fama da cutar myopia ya kaimafi girmaa cikin mutanen da ke da ciwon ido na ƙananan lafiya, da kumayana daisaedbiliyan 2.6 a shekarar 2020. Ciwon ido ya zama babbar matsala a duniyamusamman mai tsanania Asiya. Yawan myopia a China shine kashi 47.1%, kusan rabin jimlar yawan jama'a.Yana nufin ɗayadaga cikin kowane mutum biyu yana da hangen nesa na kusa.
Yawan Myopia a Kasashe daban-daban
A zamanin yau,tare dakaruwa mai mahimmanci a cikin yawan myopia,sanyeGilashin kuma yana ƙaruwa kowace shekara.Kamar ɗaya daga cikinmyopiamarasa lafiya, hakuna daya mayar da hankali kan lamarinscewa deƙareIngancin ruwan tabarau idan ana la'akari da shiidoƙirar sawa da aikin ruwan tabarau?
Bari mu koyi wani abumuhimmancigame da Lallaikayan ruwan tabarau da kuma ma'aunin haske.
Gilashin tabarau mai kyau yana buƙatar daidaito,watsawada kuma tsabta. TRuwan tabarau mafi shahara a yau shine sakamakon shekaru da yawa na bincike.
| Ci gaban kayan ruwan tabarau Yawancin ruwan tabarau na farko an yi su da hannu ne da kayan halitta kamar su quartz da crystal. Tare da ci gaban samar da gilashi da fasahar masana'antu, an maye gurbin kayan halitta da sauri da gilashin gani wanda ya fara samar da ƙarin ayyuka. Daga shekarun 1960 zuwa 1980, kayan resin, waɗanda aka yi da man fetur, sun maye gurbin gilashi don ingantattun kayan gani, sarrafawa mai aminci da siraran kayan jiki, kuma sun zama babban kayan gilashin ido har zuwa yanzu. |
A matsayin kayan ruwan tabarau mafi shahara a kasuwa, kayan resin galibi ana wakilta su ne da resin CR-39 wanda PPG ta ƙirƙira, da resin MR wanda Mitsui ta ƙirƙira,kumaAn ƙirƙiro resin KR ta hanyar KOC, Koriya, da sauransu.
Kayan ruwan tabarau yana ƙayyade ma'aunin haske na ruwan tabarau. Ma'aunin haske na ruwan tabarau shine rabon saurin yaɗa haske a cikin injin tsotsa zuwa saurin yaɗa haske a cikin kayan ruwan tabarau, yana nuna ikon haske na ruwan tabarau zuwa haske. Gabaɗaya, mafi girman ma'aunin haske na ruwan tabarau, haka nan ruwan tabarau ya fi siriri.
A halin yanzu,Duniyar Tantancewayana da ma'aunin haske na 1.50, 1.53, 1.56, 1.60, 1.67, 1.74 da sauran su.fihirisa naRuwan tabarau. Dangane da kayan aiki, mun ci gaba da haɗin gwiwa mai kyau da PPG na Amurka da Mitsui Chemical na Japanhar dasauran kamfanonin kayan masarufi da suka yi fice a fannin.
CRAna amfani da kayan da aka saya daga PPG, Amurka, don yin ruwan tabarau mai nuna haske mai lamba 1.50.Ya fi so a kasuwa bsaboda yawan Abbe, kyakkyawan aikin gani, da kuma aikin tsaro.kumaya fi inganci.
Ruwan tabarau mai ƙarfin haske mai girman 1.53 an samo shi ne daga wani abu na musamman, Trivex, wanda shi ma daga PPG a Amurka. Ruwan tabarau na Trivex yana da juriya sosai ga tasiri. Saboda sun fi haske fiye da ruwan tabarau na yau da kullun, ruwan tabarau na Trivex suna da ƙarfi sosai.mai kyau sosaizaɓi na kayan ido na yara, kayan ido marasa rim, gilashin wasanni, kayan ido na aminci, da kayan ido na wasanni.
Daci gaba oGilashin f, "ruwan tabarau", a matsayin babban kayan haɗin gilashi, koyaushe yana ƙirƙira da haɓakawa tare da canjin zamani.DuniyaNa'urar gani 1.60, 1.67, 1.74mai girmafihirisaAn yi kayan ruwan tabarau da jerin MR na Mitsui ChemicalJerin MRkayan aiki ne masu inganci da ci gaba, tare da babban ma'aunin haske, babban lambar Abbe, ƙarancin nauyi na musamman, juriya mai ƙarfi da sauran fa'idodi.
Ci gaba da inganta kayan ruwan tabarauBincike da Ci gabada fasahaingantasamfurin ruwan tabarauskirkire-kirkireionKayan da aka yi amfani da su wajen yin ruwan tabarauƙayyadekwanciyar hankalina inganci, watsawa, tsabta da tasirin gani.
Duniyana'urar hangen nesa ta kasance tana bin manufar haɗin gwiwa tsakanin ɓangarorin biyu da kuma cimma nasara a tsakaninsuMusaurari muryar abokan ciniki,saniabokin cinikis'buƙatu, kula da kasuwahali, kamar yaddadon ƙirƙirar hangen nesa mai haske.