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1.71 Lilense tsa mahlo tsa HMC tsa Single Vision
Lense ea 1.71 Lebitso le felletseng Lense ea index ea refractive ea 1.71, e nang le index e phahameng ea refractive, phetiso e phahameng, litšobotsi tse phahameng tsa nomoro ea Abbe, tabeng ea tekanyo e tšoanang ea myopia, e ka fokotsa botenya ba lense haholo, ea fokotsa boleng ba lense, ka nako e ts'oanang, ea etsa hore lense e be e hloekileng le e khanyang haholoanyane, e seng bonolo ho hasanya lithollo tsa mookoli. Ho fumanoe hore ho eketsa resin ea cyclic sulfide ka har'a thepa ea lense ho ka ntlafatsa index ea refractive ea lense, empa resin e ngata haholo ea cyclic sulfide e tla lebisa phokotsong ea phetiso ea leseli le ho petsoha ha thepa. Ka ho laola ka nepo litaba tsa resin ea ring sulphur ho resin ea 1.71KR, lense ea 1.71 e fihlela index e phahameng ea refractive le nomoro ea abbe ha e ntse e netefatsa phetiso e ntle ea leseli, ho hasana ho tlase le pono e hlakileng.