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PECULA Eye Chart Wall Art, Snellen Eye Chart, 20 feet, 11 X 22 in., Unframed, Matte Paper, Black, Minimalist, Indoor Use, Living Room

PECULA Eye Chart Wall Art, Snellen Eye Chart, 20 feet, 11 X 22 in., Unframed, Matte Paper, Black, Minimalist, Indoor Use, Living Room

Q: What is this made of?

It is made of good plastic. It comes rolled up in a tube. It does straighten out if you lay it flat with a weight on it, but it will crease if you fold it. It is a nice Snellen chart.

Q: I have glasses, but want to measure my naked eyes. i cannot see the largest e from 20 feet. how do i measure my visual acuity? thanks!

First remove your glasses, then sit or stand 20 feet from the eye chart. Cover one eye and see what is the smallest line you can read. Let's say at 20 feet you can read the letters on the row marked "40." Your visional acuity would be 20/40 or better. Hope this helps! If you have questions or other problems, see your optometrist.

Q: Does this chart come flat or rolled up?

The chart in question come rolled up in a very good cardboard protector!

4.5/5

产品编号: 418411583

安全交易

细节

Product Dimensions
6.1L x 0.56W
Item Weight
52.6 Grams
Number of Items
3
Orientation
Portrait
Shape
Rectangular
Theme
Holiday

经常一起购买

PECULA Snellen Eye Chart, Wall Chart, 22 in x 11 in, 20/20 Vision Test, Color Vision Test, Plastic, Washable, Perfect for Optometrists, Students, Offices, Schools

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Eye Chart, Pocket Eye Charts, Snellen and Rosenbaum Pocket Eye Chart for Eye Exams (2 in 1)

描述

规格

Brand	PECULA
Item model number	HATHS-SH4-70
Item Weight	1.86 ounces
Item Dimensions LxWxH	264 x 240 inches
Color	white
Manufacturer	PECULA
ASIN	B084KKHDS8
Country of Origin	China
Date First Available	February 7, 2020

有问题吗？看看别人问了什么

What is this made of?

I have glasses, but want to measure my naked eyes. i cannot see the largest e from 20 feet. how do i measure my visual acuity? thanks!

Does this chart come flat or rolled up?

常见问题

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