Gratings Acuity Cards

Gratings Acuity Cards

From: £340.00

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Product Description

The Gratings Acuity cards form a Teller-type gratings preferential looking test which provides a visual acuity assessment from as young as six weeks.  It comprises 17 Log-scaled acuity cards plus one blank card, each with a central peep hole for observing the eye movements.

The Gratings Acuity Cards provide a rapid method of determining the visual acuity of infants and young children and can also be used to test stroke victims. The test cards can be purchased in three options:-
Infant Grating Test (7 test cards plus blank)
Child Grating Test (10 test cards)
Combined Grating Test (all 17 test cards plus blank)

You may also like the Cardiff Acuity Test.

Additional Information

Dimensions 58 x 26.5 cm

Card Resolution & Acuity Equivalents

Acuity Card No Cycles per cm Cycles per degree at 38cm Approx. Snellen equivalents
1 49.2 35.4 6/5        20/17
2 35.4 25.5 6/7        20/25
3 30 21.6 6/9        20/30
4 20.1 14.5 6/12      20/40
5 17.3 12.5 6/14      20/50
6 13.3 9.6 6/18      20/60
7 10.7 7.7 6/24      20/80
8 9 6.5 6/30      20/90
9 5.3 3.8 6/50      20/160
10 4 2.9 6/60      20/200
11 2.9 2.1 6/90      20/300
12 2 1.4 6/130    20/400
13 1.33 0.96 6/190    20/600
14 1 0.72 6/250    20/800
15 0.5 0.36 6/500    20/1700
16 0.4 0.29 6/620     20/2100
17 0.25 0.18 6/1000  20/3400
18 blank

Availability

If the item shows as currently out of stock, please contact us via email contact@kaypictures.co.uk or telephone +44 (0)1442 823507 to enquire this product’s availability.