International Standard E Visual Acuity Test Chart Waterproof Logarithmic Visual Acuity Chart for Adults and Children To Measure Myopia Vision Sticker

Description: Highlights: Standard logarithmic visual acuity chart Tips: The eye chart should be tested in a place with sufficient light or good lighting Check the right eye first, then the left eye, using an eye shield Cover the other eye.

Specification: Manufacture Country: China Instructions Included: yes ShelfLife: 5 years Label: yes Conversion: 1cm=0.39inch /1 inch=2.54cm Detection distance :3 meters Size :23x50cm Material: removable coated paper Process: Coating light film Hanging height: 1 meter from the ground or suitable height Color: white

Package included：1Pcs

Notes: 1, Please allow 1-3cm difference due to manual measurement. 2, Due to different monitors and different lighting, the image may not reflect the actual color of the item. 3, Thanks for your understanding.