Low Contrast
Showing all 21 results
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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 -
Pediatric Opthalmology, Low Contrast
Pediatric Low Contrast Near
Pediatric Near Contrast Test Booklet with Contrast sensitivity levels of full Contrast (100%), 25%, 10%, 5%, 2.5% and 1.25% proportionally spaced (LogMAR) lines ranging from 20/400 to 20/16 using Michelson measures. One side of each page provides LEA SYMBOLS for testing of 3 to 5 year olds. The reverse side shows LEA NUMBERS for testing 5 to 8 year olds. Near Contrast testing provides an efficient means to detect or track ocular pathologies, including glaucoma, ARMD, diabetic retinopathy, cataract, and keratoconus. Low Contrast acuity loss measurement can used to demonstrate progress in disease treatment and help children’s parents understand the need for continued support.
SKU: 610800 -
Pediatric Opthalmology, Low Contrast
Ohio State University Newborn Contrast Cards
The OSU Newborn Contrast Cards is a card-based test designed for use on infants under 6 weeks of corrected age (or under 46 weeks of gestational age). The test consists of 8 cards, each containing a visual contrast.
SKU: 3502 -
Pediatric Opthalmology, Low Contrast
4M SLOAN Revised Chart 1.25 Percentage
Contrast Sensitivity plays an intricate part in everyday life. Testing contrast sensitivity helps to establish a record of what is normal for each patient, since everyone’s contrast sensitivity is unique. After establishing this accurate record for the patient, pinpointing abnormalities will be easier and can lead to quicker detection of vision problems. Abnormal contrast sensitivity results can help detect early signs of diseases such as Parkinson’s, Glaucoma, Cataracts and Glare problems, among many others.
SKU: 2150 -
Pediatric Opthalmology, Distance Visual Acuity Test, Low Contrast, Low Contrast & Low Vision Charts
LEA NUMBERS Low Contrast Charts Set of 5 for Illuminated Cabinets
Pediatric Opthalmology, Distance Visual Acuity Test, Low Contrast, Low Contrast & Low Vision ChartsLEA NUMBERS Low Contrast Charts Set of 5 for Illuminated Cabinets
Set includes: 1.25%, 2.5%, 5%, 10%, and 25% Contrast levels Charts.
Dimensions: 9″ x 14″ (22.9 cm x 35.6 cm).
Testing distance: 10 feet/3 meters.
SKU: JVLCN -
Pediatric Opthalmology, Distance Visual Acuity Test, Low Contrast, Low Contrast & Low Vision Charts
LEA SYMBOLS Translucent Low Contrast Charts Set of 5 for Illuminated
Pediatric Opthalmology, Distance Visual Acuity Test, Low Contrast, Low Contrast & Low Vision ChartsLEA SYMBOLS Translucent Low Contrast Charts Set of 5 for Illuminated
Set includes: 1.25%, 2.5%, 5%, 10%, and 25% Contrast levels Charts.
Dimensions: 9″ x 14″ (22.9 cm x 35.6 cm).
Testing distance: 10 feet/3 meters.
SKU: JVLCL -
Pediatric Opthalmology, Distance Visual Acuity Test, Low Contrast, Low Contrast & Low Vision Charts
Sloan Letter Low Contrast Charts Set of 5 for Illuminated Cabinets
Pediatric Opthalmology, Distance Visual Acuity Test, Low Contrast, Low Contrast & Low Vision ChartsSloan Letter Low Contrast Charts Set of 5 for Illuminated Cabinets
Set includes: 1.25%, 2.5%, 5%, 10%, and 25% Contrast levels Charts.
Dimensions: 9″ x 14″ (22.9 cm x 35.6 cm).
Testing distance: 10 feet/3 meters.
SKU: JVLCA -
Pediatric Opthalmology, Low Contrast, Low Contrast & Low Vision Charts
Tumbling E Flip Book
Notations in M letter sizes ranging from 20M to 1.6M for testing at various distances. Each page it’s own contrast level at 100%, 2.5% and 1.25%. This flip book is great for vision studies and research world wide. The Tumbling “E” vision chart uses only one
optotype
for testing. Patients not familiar with the Roman alphabet simply have to gesture or sign which direction they see the “E” facing. This is a helpful test for patients that are illiterate or mute, also. This Tumbling “E” flip book contains three contrast levels for accurate sensitivity screening.
SKU: 2380 -
Pediatric Opthalmology, Low Contrast, Low Contrast & Low Vision Charts
Feinbloom Low Vision Visual Acuity Book
Pediatric Opthalmology, Low Contrast, Low Contrast & Low Vision ChartsFeinbloom Low Vision Visual Acuity Book
- Original Feinbloom arrangement modified by using PVNumbers® and a logarithmic progression from 20/1000 to 20/20
- Uniform rows of 5 numbers each from 20/100 to 20/20
- Notations are given in feet and M units with equivalent Snellen fractions for a 10 foot test distance.
William Feinbloom , O.D., PH.D.® is a registered trademark of Designs for Vision, Inc. and is used with their permission.
SKU: 2703 -
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Low Contrast, Pediatric Opthalmology
ETDRS Low Contrast Letter Charts
ETDRS low Contrast Sloan Letter, vision chart with proportionally spaced (geometric progression) lines translucent low Contrast letter chart with line sizes range from 20/200 to 20/10 (6/60 to 6/3) equivalent. Available in 5 Contrast levels: 1.25%, 2.5%, 5%, 10% and 25%. Chart size is 24.5″ x 25.5″ (62 cm x 65 cm).
SKU: 500022 -
Low Contrast, Pediatric Opthalmology
Evans Letter Contrast Test ELCT
The Evans Letter Contrast Test (ELCT) chart is the first standardized test for letter Contrast,. The ELCT chart is designed to be used with either the ESV3000 or ESC2000 providing consistent lighting for improved testing results. The ELCT chart presents Sloan Letter, optotypes line size of 20/630 with a testing distance of 1m. The varying Contrast in sets of 3 letters of equal Contrast level. All triplets are balanced for letter difficulty and differ in Contrast by 0.15 log Contrast step.
SKU: 500330 -
Low Contrast, Pediatric Opthalmology
Sloan Letter and Low Contrast Flip Chart
Easily measure, record, and detect changes in the transfer of visual information when the change affects only visual acuity at low Contrast levels. Charts include the following Contrast levels: black, 25%, 10%, 5%, 2.5%, and 1.25%. Pages are offset for easy flipping. Each chart includes recording forms and instructions. 6 pages, 3.25 in x 9 in (8.25 cm x 22.9 cm).
SKU: 736000 -
Low Contrast, Pediatric Opthalmology
Mars Perceptrix Numbers Contrast Test Set
The Mars Perceptrix numbers Contrast eye chart is unlike many other Contrast tests that merely assess visual acuity using low Contrast targets, the Mars Perceptrix low Contrast test is a true Contrast sensitivity measure that indicates the lowest Contrasts your patients can perceive, rather than the smallest letters they can identify at some low, arbitrarily chosen Contrast. With the Mars test, it is the Contrast, and not the letter size, which diminishes from the beginning to the end of the chart.
SKU: 300901 -
Cognative Vision, Low Contrast, Pediatric Opthalmology
Cardiff Pediatric Low Contrast
Cardiff Low Contrast are designed to measure Contrast sensitivity in typically developing toddlers and young children, as well as in older children and adults with intellectual impairment. Test targets are pictures of the same size that decrease in Contrast between light and dark bands. The Contrast sensitivity is determined by the faintest bands for which the target is visible.
SKU: 566700 -
Low Contrast, Pediatric Opthalmology
Adult Near Contrast Test
This adult near vision low Contrast test features both ETDRS, Format and Continuous Text in 100%, 25%, 10%, 5%, and 2.5% Contrast level. Continuous text letter sizes range from 20/100 to 20/20 (6/30 to 6/6) equivalent in each Contrast level. ETDRS, format letters sizes range from 20/400 to 20/10 (6/120 to 6/3) equivalent in 17 increments for each Contrast level. Each Contrast level page is tabbed for easy access with included instructions. Printed on durable long lasting styrene plastic and clear coated for added protection. The near vision Contrast booklet contains 7 pages measuring 6.25″ x 6.25″ (15.8 cm x 15.8 cm).
16 inch, 40 cm testing distance.
SKU: 587700 -
Low Contrast, Pediatric Opthalmology
LEA NUMBERS Low Contrast Test 10M
Now it is easy to measure, record and detect changes in the transfer of visual information when the change only affects visual acuity at low Contrast levels. Chart presents numbers at the following Contrast levels: black, 25%, 10%, 5%, 2.5%, and 1.25%. Pages are offset for easy flipping. Each chart includes recording forms and instructions. 6 pages, 3.25″ x 9″ (8.25 cm x 22.9 cm).
Part No :
270400 – Standard Order
270500 – Mixed Order
SKU: 270400 -
Low Contrast, Pediatric Opthalmology
Mars Perceptrix Letter Contrast Test Set
The Mars Perceptrix Contrast test is unlike many other Contrast tests that merely assess visual acuity using low Contrast targets, the Mars Perceptrix low Contrast test is a true Contrast sensitivity measure that indicates the lowest Contrasts your patients can perceive, rather than the smallest letters they can identify at some low, arbitrarily chosen Contrast. With the Mars test, it is the Contrast, and not the letter size, which diminishes from the beginning to the end of the chart.
SKU: 300900 -
Low Contrast, Pediatric Opthalmology
Hiding Heidi Low Contrast Face Test
Hiding Heidi Low Contrast Face Test are available in 2 different versions:
Double Sided : Four cards printed on both sides in the following Contrast levels: black, 25%, 10%, 5%, 2.5%, and 1.25%.
Single Sided : Seven cards printed on one side in the following Contrast levels: black, 25%, 10%, 5%, 2.5%, and 1.25%.
Cards are 9″ x 9″ (23 cm x 23 cm). Includes instructions.
SKU: 253500 -
Low Contrast, Pediatric Opthalmology
LEA SYMBOLS Low Contrast Test 10M
Test for quick measurement of low Contrast visual acuity at 25%, 10%, 5%, 2.5%, and 1.25% Contrast by measuring the distance where the symbols are seen. 10M symbols correspond to visual acuity 0.10 at 1 m, 0.05 at 0.5 m and 0.3 at 3 m. VA values are thus easy to calculate. Test includes a table for conversion to Snellen equivalent VA values, a response keys and instructions. 6 pages, 3.25″ x 9″ (8.25 cm x 22.9 cm).
SKU: 251100
