The Frugal Viewing Mirror is designed to be mounted in front of the patient, allowing reading of acuity chart images, either reflected by the projection mirror to the screen behind the patient, or rendered by a digital visual acuity system like the ClearChart4X
. An ophthalmic mirrored system allows acuity charts to be viewed at an equivalent of 20 feet in smaller exam rooms. Unlike the Frugal First Surface Mirror
, the viewing mirror is not designed to reflect light from a projector. Western's OS-5143 Viewing Mirror features a solid oak frame with outside dimensions of 17.75"x17.75", a mirror surface of 16.25"x16.25" and includes swivel mounting bracket.