The In-flight Vision Tester planned for use in visual acuity tests during Gemini-5 and 6 missions. Astronauts will hold the item in their teeth by the bite board and look into the eye piece to check their own vision once every 24 hours during the missions.
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Author
NASA
Description
The In-flight Vision Tester planned for use in visual acuity tests during Gemini-5 and 6 missions. Astronauts will hold the item in their teeth by the bite board and look into the eye piece to check their own vision once every 24 hours during the missions.