▁bin oc ular ▁vision , ▁to ▁assess ▁certain ▁conditions ▁of ▁st rab ism ▁in ▁particular ▁related ▁to ▁bin oc ular ▁stability ▁and ▁alignment , ▁cycl otrop ia , ▁and ▁the ▁presence ▁and ▁extent ▁of ▁supp ression . ▁It ▁can ▁also ▁be ▁used ▁in ▁vision ▁ther apy ▁to ▁train ▁amb ly op ic ▁subjects ▁in ▁des upp ression ▁and ▁eye – hand ▁coord ination . ▁ ▁A ▁s tere os cope ▁can ▁be ▁modified ▁to ▁function ▁as ▁a ▁che iros cope . ▁ ▁See ▁also ▁▁ ▁D ip lop ia ▁ ▁Amb ly op ia ▁ ▁Orth opt ist ▁ ▁References ▁ ▁Category : Opt ical ▁devices ▁Category : S tere os copy <0x0A> </s> ▁Chal ar as ▁( , ▁also ▁Roman ized ▁as ▁Chal ā ras ; ▁also ▁known ▁as ▁Chal ā ras - e ▁B ā l ā ) ▁is ▁a ▁village ▁in ▁A ml ash - e ▁Sh om ali ▁R ural ▁District , ▁in ▁the ▁Central ▁District ▁of ▁A ml ash ▁County , ▁Gil an ▁Province , ▁Iran . ▁At ▁the ▁ 2 0 0 6 ▁census , ▁its ▁population ▁was ▁ 4 1 4 , ▁in ▁ 1 1 1 ▁families . ▁ ▁References ▁▁ ▁Category : Pop ulated ▁places ▁in ▁A ml ash ▁County <0x0A> </s> ▁Sir ▁Alan ▁Stewart ▁Or r ▁O BE ▁Q C ▁( 2 1 ▁February ▁ 1 9 1 1 ▁– ▁ 3 ▁April ▁ 1 9 9 1 ) ▁was ▁a ▁British ▁bar r ister ▁special ising ▁in ▁tax ation ▁who ▁rose ▁to