For the testing of visual acuity (visus).

The vision-test characters are aligned according to the Snellen-method.

Visus-values for 5 and 6 m testing-distance are given on the tables.

You have the choice between a table with letters and numbers, a table with “Pflügerhaken” (E-symbols), a table with images for children, a table with just letters or just numbers.

By spatial vision we mean the three-dimensional perception of space.

“The House Fly” Stereotest ( “Titmus-Test”) is a simple way of testing stereoscopic perception in all age groups. Everybody, including small children, grasps what a fly is.

The glasses with polarized lenses used in the stereo vision test, “The House Fly” by VAC, polarize the light depending on the direction it comes from. For people with normal vision they create a spatial picture, while someone with impaired vision does not perceive it.

Product contents

• test booklet with stereo pictures
• adult-size polarizing glasses
• child-size polarizing glasses

The glasses with polarized lenses used in the stereo vision test, “The House Fly” by VAC, polarize the light depending on the direction it comes from. People with normal vision see a spatial picture, while someone with impaired vision does not.

With the “Fly” Stereotest (“House Fly” titmus test) you have a simple way of testing stereoscopic vision in every age group. Everybody, including small children, grasps what a fly is.

• for qualitative and quantitative testing of spatial vision
• with polarizing glasses
• in book form