Uyilo lwelensi ye-OptoTech SD oluqhubela phambili lusasaza i-astigmatism engafunekiyo kuzo zonke iindawo ezinkulu zomphezulu welensi, ngaloo ndlela inciphisa ubungakanani bubonke bobumnyama ngeendleko zokunciphisa iizowuni zombono ocacileyo.Impazamo ye-astigmatic inokuchaphazela indawo yomgama.Ngenxa yoko, iilensi eziqhubela phambili ezithambileyo ngokubanzi zibonisa ezi mpawu zilandelayo: Iizowuni zomgama eziMxinwa, iindawo ezikufutshane ezibanzi, kunye namanqanaba asezantsi, anyuka kancinane e-astigmatism (iikhonto ezivuleke kakhulu).Ubuninzi.Isixa se-astigmatism engafunekiyo siyancitshiswa ukuya kwinqanaba elimangalisayo le-approx.I-75% yamandla ongeziweyo. Olu lwahluka loyilo lusebenza ngokuyinxenye kwiindawo zokusebenza zangoku.