Likotsi tse likete tsa mahlo li etsahala letsatsi le letsatsi, tse akaretsang likotsi lapeng, lipapaling tsa baithaopi kapa tsa litsebi kapa mosebetsing. Ha e le hantle, Prevent Blindness e hakanya hore likotsi tsa mahlo mosebetsing li atile haholo. Batho ba fetang 2,000 ba lematsa mahlo mosebetsing letsatsi le leng le le leng. Kotsi e le 'ngoe ho tse 10 e hloka letsatsi le le leng kapa ho feta la mosebetsi ho fola ho lona. Leha ho le joalo, bakeng sa barekisi ba mahlo le litsebi tse ikemetseng tsa tlhokomelo ea mahlo, monyetla oa ho nka karolo ho thuseng bahiri ho sireletsa basebetsi ba bona ka lieta tse nepahetseng tsa mahlo tsa polokeho e ntse e le monyetla o moholo oa ho ntlafatsa mekhoa le monyetla oa bohlokoa.
Bafepedi ba Major Rx Safety le lilaboratori ho pholletsa le naha ba nka karolo mananeong a ka sebeletsang litlhoko tsa basebetsi ba tlamehang ho bona hantle ho etsa mesebetsi ea bona ka mokhoa o sireletsehileng, ho sireletsa likotsi kapa tšoaetso.
Universe Optical le yona e bile le maikutlo a botsebi haholo le a tebileng mabapi le tlhahiso ya digalase tsa polokeho tsa RX.
E ka etsoa ka index le thepa ea 1.59 polycarbonate, 1.53 thepa ea Trivex le index tsohle ka resin e thata.
Likhalase tsa tšireletso tsa litsebi tsa UO li ka sireletsa mahlo a hau ka botlalo ha u etsa mesebetsi mosebetsing le kantle.
Bakeng sa tlhahisoleseling e batsiea likhalase tsa tšireletso, Ka kopo o seke wa tsilatsila ho etela webosaete ya rona e ka tlase,