SKU: 16781442733

TNO Stereo Test

Sale price$267.75 Regular price$297.50
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Ships within 48 hours · Estimated delivery Jul 27 - Aug 1

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Description

TNO Stereo TestThe TNO test is designed primarily for screening children of age 2 1 2 to 5 years for defects of binocular vision. It consists of 7 plates (to be viewed with red green glasses) that carry figures that can be seen only when both eyes cooperate to give stereoscopic vision. 4 plates enable the examiner to quickly establish whether stereoscopic vision is present at all. The three quantitative plates may then be used for the exact determination of

The TNO test is designed primarily for screening children of age 2-1/2 to 5 years for defects of binocular vision. It consists of 7 plates (to be viewed with red/green glasses) that carry figures that can be seen only when both eyes cooperate to give stereoscopic vision.

4 plates enable the examiner to quickly establish whether stereoscopic vision is present at all. The three quantitative plates may then be used for the exact determination of stereoscopic sensitivity. The strength of the TNO test is that there are no monocular clues. Red/green glasses included.

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SKU: 16781442733

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4.7 ★★★★★
Based on 24 reviews
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D
Verified Purchase
Doris D.Willingham
Belleville, US
★★★★★ 5
My puppy love these.And he's an extra large american bully , so he put them through their paces
Color: Blue&Red Fish
These toys were an excellent choice. My puppy really enjoyed him and he's definitely an aggressive chewer.He's an extra large american bully. But a big baby, especially when it comes to his toy\nOf course he's tough on them But These definitely held up well. So if you have a.n aggressive Chewer these are an excellent choice
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 11, 2026
A
Verified Purchase
Amanda Vinzant
Charlottesville, US
★★★★★ 5
Great toy for aggressive chewers
Color: Purple & Blue
My dog loves this!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on June 12, 2026
J
Verified Purchase
Jellyshodi
Fort Morgan, US
★★★★★ 5
Good chew toy
Color: Purple & Blue
Our golden retrievers love these. They last awhile too
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 24, 2026
S
Verified Purchase
Shan
Omaha, US
★★★★★ 5
Dog toy is tough and durable
Color: Blue&Red Fish
It’s great for aggressive chewers, my pittbull loves it
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 2, 2026
C
Verified Purchase
CA
West Palm Beach, US
★★★★★ 1
Our dogs hurt their mouths chewing these bones
Color: Purple & Blue
I don't do a lot of reviews because I realize many are objective opinions. However, in this case I felt it was necessary to warn others. Our dogs are aggressive chewers. Their last rubber bones (not these) which we've purchased before, and recently purchased again, were destroyed quickly. Chunks of rubber came off the ends. Since those didn't hold up like they used to, I found these harder bones hoping they would last longer. They were able to gnaw into the hard plastic within a few minutes. This created sharp edges that cut their mouths. When I saw a bit of blood on the bones, I took them away from the dogs and threw them away. I wondered why they quit chewing on them after being so excited at first. Also, these are hard enough to damage a tooth.
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Reviewed in the United States on December 6, 2025

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