Pediatric Opthalmology
Showing 25–48 of 348 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 -
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 -
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, Examination tools
Pocket Pediatrics Reference Card (Dovie Card)
A pocket reference for pediatric and binocular vision testing and conditions.
The Dovie Pediatrics Pocket Card contains concise information on the 11 most common binocular vision disorders and their associated clinical exam findings. Included are binocular vision and accommodative testing normal and expected values.
SKU: DOVPRC -
Examination Tools, Pediatric Opthalmology
RAF Royal Air Force Rule Convergence Rule
The RAF Rule (Royal Air Force Rule) provides a binocular gauge to measure Objective and Subjective Convergence as well as accommodation in 1 mm increments. The RAF Rule consists of a 50 cm long rule with a slider holding a rotating four-sided cube.
SKU: JVRAF -
Vision Therapy, Occupational Health
ReadAlyzer 2K Wireless
The ReadAlyzer 2K Wireless is the latest innovation from Compevo AB, a Swedish company known for its expertise in designing and manufacturing advanced visual tracking systems like the ReadAlyzer, Visagraph USB, and Visagraph II.
SKU: RDZEMR2K -
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Illiminator Cabinet, Charts For Large Cabinets, Low Contrast & Low Vision Charts
Sloan Revised Low Contrast Chart (Scrambled A)
Illiminator Cabinet, Charts For Large Cabinets, Low Contrast & Low Vision ChartsSloan Revised Low Contrast Chart (Scrambled A)
Sloan low contrast vision test features equivalents on each side of the chart. These equivalents include Meters, Feet, LogMar, and Decimal. This list helps in easy translation and conversion of equivalents. Coupled with Sloan letters, true contrast levels and ETDRS style format, this contrast sensitivity test is accurate and reliable.CAT. NO. 2425 Illuminator Cabinet is necessary with these translucent low contrast charts.SKU: 2154A -
Charts For Large Cabinets, Contrast Sensitivity, Illiminator Cabinet, Low Contrast & Low Vision Charts
Sloan Revised Low Contrast Chart (Scrambled B)
Charts For Large Cabinets, Contrast Sensitivity, Illiminator Cabinet, Low Contrast & Low Vision ChartsSloan Revised Low Contrast Chart (Scrambled B)
Sloan low contrast vision test features equivalents on each side of the chart. These equivalents include Meters, Feet, LogMar, and Decimal. This list helps in easy translation and conversion of equivalents. Coupled with Sloan letters, true contrast levels and ETDRS style format, this contrast sensitivity test is accurate and reliable.
CAT. NO. 2425 Illuminator Cabinet is necessary with these translucent low contrast charts.
SKU: 2154B -
Distance Visual Acuity Test, Pediatric Opthalmology
Snellen Eye Chart for Visual Acuity and Color Vision Test
Distance Visual Acuity Test, Pediatric OpthalmologySnellen Eye Chart for Visual Acuity and Color Vision Test
Includes Red and Green color bars for an easy and helpful place to start administering the test. Chart uses true Snellen optotypes for acuity vision testing. C, D, E, F, L, O, P, T optotypes feature defined serifs on each letter, making them unique to Snellen.
SKU: 5005 -
Pediatric Opthalmology, Occupational Health, TABATABA CO-Tester
TABATABA V3 CO-Tester
Easy to use, accurate and reproducible, the TABATABA v3® is a measurement device intended for health professionals (tobaccologist, occupational health worker, associations, maternity departments, lung specialist, chemist, etc.)
SKU: FF1006
