Page 31 - 2024 Catalog - Spring

acuity - contrast sensitivity/okn
oPtokiNEtic dRums
okN BaNNER Developed by: Curt Baxstrom OD
Two 12” x 24” two sided sheets are used to test for the optokinetic reflex. Banner allows larger peripheral stimulus. Comes with a target that is roughly 1/4” black and white stripes on one side and 1/2”black and white stripes on the other. A second ban- ner has 1” wide white and black stripes on one side and a child interest target similar to our DAL301 on the other side. Can be rolled up for easy storage. Clear end pieces hold banner from curling. Washable plastic material similar to window shade.
OKNKIT $69.95
PEEk-a-Boo PattiTM loW coNtRast tEst
These cards rely on the idea that children and infants respond better to faces than to random symbols or shapes. These cards use a Peek-a-Boo Patti shape to hold the attention of children. Each card uses the same shape and is printed in six different contrast levels.
This test set consists of four oval cards which are printed on both sides with contrast levels of 1.25%, 2.5%, 5%, 10%, 25% and full contrast.
One card is left blank for presentation. Durable and washable.
Dimensions: 17" × 11" × 1" USO2535 $169.95
Accurately test acuity when rotated 8 to 10 RPMS at different reading distances.
Both are 10” long and 8” diameter.
a. PEdiatRic modEl DAL301 $249.95
B. adult modEl DAL300 $249.95
A.
B.
PEdiatRic okN BaNNER adaPtER foR adult oPtokiNEtic dRum
Sized to fit over our Adult Optokinetic Drum (DAL300) this vinyl sheet is used to test for the optokinetic reflex. The banner has child interest targets similar to our DAL301. Can be rolled up for easy storage. Clear end pieces hold banner from curling. Washable plastic material similar to window shade. Velcro on backside of the banner allows for easy attachment around the Adult Optokinetic Drum (DAL300).
OKNADP1 (Child Adapter) $39.95
PElli-RoBsoN lEttER NEaR coNtRast sENsitiVity chaRts (sEt of 3)
Optotype Options: PATTI PICS, PV NUMBERS, or SLOAN
Features Traditional Sloan Optotypes found in the Original Pelli Robson Chart! For use at 16 in (40cm) Includes three charts, each of which is scramble. Choose from traditional Sloan Optotypes, Patti Pics Pediatric Optotypes or PV Numbers Optotypes.
multi- coNtRast sloaN lEttER fliP Book
Low Contrast Value:
100%, 2.5%, 1.25%
Chart Comes with: Test Instructions, Recording Forms, Soft-tipped Pointer, 2 meter cord, Conversion Charts
The test chart is also bound and includes instructions and recording forms. Each level uses traditional Sloan optotypes in an ETDRS format for an equally difficult test from beginning to end. Every level uses a different series of optotypes to help reduce any possibility of memorization. Also, each contrast sensitivity level is highly calibrated and will produce accurate results. This flip book is an excellent choice for research because of its accuracy and reliability.
Dimensions: 16" × 16" × 1" PV2180 $249.95
Acuity Level 10m (20/630) at 40 cm (16 in).
Patti Pics - Set of 3
PV5011PP $379.95 PV Numbers - Set of 3
PV5012N $379.95
SLOAN Letters - Set of 3
PV5013S $379.95
Handy and durable case included for storage.
hamiltoN-VEalE coNtRast sENsitiVity tEst
This easy and convenient test can be used to monitor a decrease on the contrast sensitivity function over time. This test also demonstrates the difficulty of seeing in poor lighting or at night. Conditions affecting Contrast Sensitivity include: Age, Glaucoma, Cataract, IOL, Keratomas, Diabetes, Macular edema, Optic neuritis, MS, Parkinsons, Papilloedema. Made of washable material.
ruLes of thuMB with this test:
• Level 4 or Less: Suffer from severe loss or are legally blind
• Level 5-8: Suffer significant loss and need contrast enhancement • Level 9-12: Have noticeable loss and need lighting evaluation
• Level 13-16: Have a near normal contrast sensitivity
HVCST $94.95
Order Now by Phone at (574) 259-2070 or Go To www.bernell.com 28
EXAM ROOM NEEDS
ASSESSMENTS
OPTICAL
VISION THERAPY
NEURO REHABILITATION
LOW VISION
REFERENCE