Horizontal prism.out far for Percival:InvLen:Pt:Eye:Qn:Phoropter
horizontal prism.out far for percival:invlen:pt:eye:qn:phoropter
Horizontal prism.out far for Percival:InvLen:Pt:Eye:Qn:Phoropter
horizontal prism.out far for percival:invlen:pt:eye:qn:phoropter