Showing 73–96 of 1193 results
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Vision Therapy, Work Books
Learning to See Seeing to Learn Vision and Learning and Behavior in Children
Vision Therapy, Work BooksLearning to See Seeing to Learn Vision and Learning and Behavior in Children
Learning to See = Seeing to Learn: Vision, Learning & Behavior by Dr. Patrick Quaid et al, will unlock the connection between eyesight, education, and behaviors in children. How can you have 20/20 vision and not see well? Why are some very bright children unable to concentrate while reading and are unable to memorize what they see? This book will be especially interesting for teachers, educators, and parents with children who struggle to learn, are on an IEP, or who have been identified with ADD or ADHD. Learn about visual processing and why some children and adults struggle to see and understand what everyone else does naturally. Discover how challenges with visual processing can be corrected.
SKU: LTSQBK -
Examination Tools
Lensmeter Auto
Auto Identification of Lens Type
Support auto judgment of lens type and identification of single-vision and progressive lens.Features:
- Bigger TFT touch screen colour LCD 7″,simple and easy operation technology.
- UV Lens can be measured.
- PD, PH can be measured.
- Contact Lens can be measured.
- Prism Lens can be measured.
- Can Check Distortion (Scratch) on Lens.
- Easy measurement of Progressive Lens.
- Auto Print with High Speed Thermal printing.
- Hartman testing method.
- Green LED light source.
SKU: CCQ-800 -
Accessories, Ophthalmic Clinical Research
Light Meter
FEATURES
- 5 ranges :40.00/400.0/4,000/40,000/400,000 Lux.
- Resolution :0.01 Lux to 100 Lux.
0.01 Ft-cd to 10 Ft-cd. - Selection of lighting type ( Tungsten,Fluorescent, Sodium or Mercury ).
- Sensor used the exclusive photo diode & color correction filter, spectrum meet C.I.E. photopic.
SKU: LX-1108 -
Low Contrast, Pediatric Opthalmology
Mayer Kran Double Happy Low Contrast Test
The Mayer-Kran Double-Happy Low Contrast Test is intended for children and older individuals who are unable to name or match letters, that is, individuals who cannot be tested with standard letter contrast tests. The test cards are printed with a smiling schematic face offset from the center of the card; the face is identical when the card is rotated 180 deg. This format is like the Teller Acuity Cards* and enables testing using a similar procedure. The M-K Double-Happy Contrast Test is offered with two options: The Screening Set consists of 6 cards varying in Weber contrast: 89, 36, 25, 12.6, 6.3, 3.2, 2.2 The Full Set The M-K D-H full test set consists of 16 cards: 15 cards are printed with a schematic smiling face and the 16th card is blank. The contrast values are varying in Weber contrast: 89, 71, 50, 36, 25, 17.8, 12.6, 8.9, 6.3, 4.5, 3.2, 2.2, 1.6, 1.1, 0.8, Blank
SKU: 2012-16 -
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Examination Tools
Neitz LED Ophthalmoscope
High Color-rendering LED Ophthalmoscope
with Boost Mode for More Brightness– LED with long lifespan over 50,000 hours
– 3 times brighter than our halogen bulb model
– Boost mode for more brightness
– Equipped with a cobalt blue filter
– The correction lens from -36 D to +35 D at the interval of 1 D to focus accurately
– Unique polarizing filter for observation of natural fundus images
– Dust shutter to prevent foreign matter
– Neitz original optical systems for minimal corneal reflectionSKU: BXα-13 LED -
Examination Tools
Neitz LED Streak Retinoscope
Easily visible screening even in a bright room
– No need of light bulb replacement; Maintenance-free
– Switchable between normal mode and much brighter boost mode
– Helps the accurate diagnosis of the astigmatic axis
– The beam can be turned 360 degrees steplessly
– The anti-reflection filter provides a brighter and wider field of view
– Durable life with two C-size batteriesSKU: RX-3 LED -
Examination Tools
Neitz Streak Retinoscope
– Precision processing of 0.05 mm diameter filaments achieves one of the finest sharp streaks of light in the industry
– Support accurate diagnosis of astigmatic axis
– Continuous 360-degree-rotation of luminous flux
– Bright and wide field of view realized by adopting an anti-reflection filter
– Slimline handle with two AA batteriesSKU: RX-3A -
Vision Therapy, Work Books
One Eyed Princess Gaining depth in sight and mind
One-Eyed Princess shows the journey of a stereoblind person doing eye muscle and brain exercises to straighten her eyes and rewire her brain to wake up dormant binocular brain cells. Along the way to seeing the world in more detail and appreciating depth, Susanna learned not only to see the physical world anew but also to feel reborn into a new inner world.
SKU: SZOEP -
Illiminator Cabinet, Ophthalmic Clinical Research
Original Retro-Illuminated ETDRS Cabinet with LED bulbs
Illiminator Cabinet, Ophthalmic Clinical ResearchOriginal Retro-Illuminated ETDRS Cabinet with LED bulbs
ETDRS Illuminator Cabinet has maintained these standardized testing conditions in clinical trials worldwide. These ETDRS Illuminator Cabinets (and Charts) have been used in thousands of clinical trials, contributing to successful FDA approvals of new drugs and treatments of all disease areas.
SKU: 2425Ev4 -
Other charts, Ophthalmic Clinical Research
Original Series SLOAN Letter Chart 1
Only standardized format accepted in studies sponsored by the National Eye Institute.
Designed for use in clinical studies and low vision evaluations where accurate, repeatable visual acuity measurements are required.
SKU: 2174 -
Other charts, Ophthalmic Clinical Research
Original Series SLOAN Letter Chart 2
Only standardized format accepted in studies sponsored by the National Eye Institute.
Designed for use in clinical studies and low vision evaluations where accurate, repeatable visual acuity measurements are required.
SKU: 2175 -
Grating Acuity, Pediatric Opthalmology
OSU Ohio Contrast Cards Set of 11 Cards
For the Ohio Contrast Cards contrast sensitivity test, we chose a very low spatial frequency square wave because human contrast sensitivity, when measured with square-wave gratings, is empirically high and constant over a wide range of very low spatial frequencies. 5,17–19 Therefore, the visibility of a square-wave grating does not depend very much on spatial frequency over this range (red squares and it is much closer to the peak value of the contrast sensitivity function than what is reported for sine wave stimuli (compare red squares and blue diamonds. A, which we show because those authors also used large stimuli and unlimited viewing time; see also Carney et al. 20 and Watson and Ahumada 21. The red curve. A was predicted by the standard model of contrast detection 20,21 applied to square waves of constant area, fitted to the square-wave data. A by transposing it rigidly relative to log axes to minimize the sum of squared residuals.
SKU: 3503 -
Vision Therapy, Work Books
Parquetry Block Workbook Level 1
Parquetry Block Workbook Level 1
Using brightly colored blocks to build designs makes improving visual perceptual and visual memory abilities fun and interesting. Vision Tutor’s four workbook levels have been developed to progressively challenge and improve skills.
SKU: VTP1 -
Work Books, Vision Therapy
Parquetry Block Workbook Level 2
Parquetry Block Workbook Level 2
Using brightly colored blocks to build designs makes improving visual perceptual and visual memory abilities fun and interesting. Vision Tutor’s four workbook levels have been developed to progressively challenge and improve skills.
SKU: VTP2
