Contrast Sensitivity
Showing 1–24 of 34 results
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Contrast Sensitivity, Distance Charts, Ophthalmic Clinical Research, Other charts
Bailey Lovie Chart Set
Contrast Sensitivity, Distance Charts, Ophthalmic Clinical Research, Other chartsBailey Lovie Chart Set
The charts come as a set of two panels (21x24inches, 53x60cm) each with a high contrast chart one side and a low contrast chart (18% Weber or 10% Michelson) on the other. The optotype set is the family of ten British Standard (1968) 5×4 non-serifed letters
SKU: 5000 -
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Contrast Sensitivity
Colenbrander Reading Card (Low Vision, Mixed Contrast) – English
Continuous text cards simulate everyday tasks and activities that patients may encounter, such as reading the newspaper.
Designed as a simple screen test. The usual question for a reading test is: What is the smallest (black) line you can read? On the contrast card one adds the question What is the smallest (grey) line you can read? The difference between the two measurements will be obvious and can simply be expressed in lines. Preliminary findings indicate a 2 or 3 line difference is normal.
Unrelated simple sentences at 4th grade level.
Serves as an educational tool to demonstrate the effect of contrast deficits to patients and family members.
SKU: 4060 -
Contrast Sensitivity, Near Vision Chart, Near vision charts, Near Visual Acuity Testing, Ophthalmic Clinical Research, Pediatric Opthalmology
Colenbrander Reading Card (Near Vision, Standard Contrast)
Contrast Sensitivity, Near Vision Chart, Near vision charts, Near Visual Acuity Testing, Ophthalmic Clinical Research, Pediatric OpthalmologyColenbrander Reading Card (Near Vision, Standard Contrast)
Continuous text cards simulate everyday tasks and activities that patients may encounter, such as reading the newspaper.
SKU: 4041 -
Charts for CSV1000, Contrast Sensitivity
CSV- l000LV Chart
The CSV-l000LV is designed for evaluating patients who have worse than 20/70 acuity. At a test distance of 1 Meter, the letter size is equivalent to 20/630 ETDRS LogMAR acuity. This test presents letters at 8 contrast levels.
SKU: CSV- l000LV -
Contrast Sensitivity, CSV1000
CSV-1000 Accessories
The CSV-1000 can hang on the wavewall, sit on a table or hang from a rolling floor stand. The device can also be used in conjunction with neutral density lenses or trial frames which provide the ability to test mesopic contrast sensitivity, acuity and contrast sensitivity with glare. See the images below for these accessories
SKU: CSV-1000 Accessories -
Contrast Sensitivity, CSV1000
CSV-1000 ETDRS LogMAR Tests
The CSV-1000 ETDRS provides a full range of LogMAR testing (20/200 to 20/10) at a test distance of 8 feet using standardized luminance. The smaller footprint of the instrument allows its use for testing in the typical-size examination rooms, ie 8’ X 12’ rooms. If testing at 4 meters is desired, a different test face can be used with a more narrow range of acuity tested (20/125 to 20/5). To learn more about the CSV-1000. See the images and text below to learn more about the various types of ETDRS (LogMAR) tests that can be used with the CSV-1000. (Please visit this page to learn more about the fundamentals of ETDRS testing.
SKU: CSV-1000 ETDRS -
Contrast Sensitivity, CSV1000
CSV-1000 Low Contrast Acuity Tests
A variety of low contrast acuity tests can be used with the CSV-1000 or CSV-1000HGT. These tests are used primarily for screening, cataract documentation or in clinical trials. Please see the pictures and images below to learn more about the various low contrast acuity tests available from VectorVision. Other contrast levels and test types are available upon request.
SKU: CSV-1000 Low Contrast -
Contrast Sensitivity, CSV1000
CSV-1000 Low Vision Tests
The CSV-1000 instrument is the recognized world-wide leader for standardized contrast sensitivity, ETDRS and glare testing. The patented auto-calibration circuitry provides for standard and consistent test conditions without a hassle. The instrument automatically controls the test lighting to a level of 85 cd/m2, which is the light level recommended for vision testing by the National Academy of Sciences and adopted by the FDA as the required testing light level for clinical trials. Ease of use is one reason why the CSV-1000 is used in eye clinics in more than 60 countries. All you have to do is turn on the device and it is ready to evaluate patients using standardized and highly accurate tests.
SKU: CSV-1000 Low Vision -
Contrast Sensitivity, CSV1000
CSV-1000 Standardized Contrast Sensitivity Tests
Contrast sensitivity testing is accomplished worldwide by eye doctors in more than 60 countries using the CSV-1000 instrument. The ease of use, standardization and accuracy make it a mainstay for measuring the functional vision for cataract patients, evaluating refractive surgery and IOLs and for assessing disease progressing and treatment. Please review the images and text below to learn about the various contrast sensitivity test faces that can be used with the CSV-1000. (Please visit this page for background information describing the basics of contrast sensitivity.
SKU: CSV-1000 Contrast Test -
Charts for CSV1000, Contrast Sensitivity
CSV-1000-1.5CPD Chart
The CSV-1000-1.5CPD is a special test face designed specifically for Food and Drug Administration clinical trials which require the testing of contrast sensitivity at 1.5 cycles/degree under mesopic lighting conditions
SKU: CSV-1000-1.5CPD -
Charts for CSV1000, Contrast Sensitivity
CSV-1000E Chart
The CSV-1000E contrast sensitivity chart test face is the most widely used contrast sensitivity test in the world. This test provides for four (4) rows of sine-wave gratings. At the recommended test distance of 8 ft (2.5 meters), these gratings test the spatial frequencies of 3, 6, 12 and 18 cycles/degree (CPD).
SKU: CSV-1000E -
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Contrast Sensitivity, CSV-1000HGT
CSV-1000HGT Standardized Glare Test
Since 1991, the CSV-1000 has been a mainstay for clinical trials that measure contrast sensitivity, ETDRS acuity, low contrast acuity and glare sensitivity. The self-standardized back lit system automatically initiates and maintains a light level of 85 cd/m2. This light level is recommended by the FDA for vision evaluation. The system is also easy to use and requires no maintenance, thus greatly reducing overhead in clinical trials. The cool fluorescent bulbs used in the CSV-1000 have a 20,000 hour life and draw very little energy. Using the CSV-1000 makes bulb replacement obsolete and creates an energy saving footprint. The device is also configured electrically with a universal power supply so that is very simple to adapt for local electrical requirements by using a plug cord for the country of choice.
SKU: CSV-1000HGT -
Charts for CSV1000, Contrast Sensitivity
CSV-1000HOTV Chart
The CSV- 1000HOTV test face provides a LogMAR test in which only four letters are used; H, O, T and V. This test is very useful for evaluating children or patients which commonly reverse the appearance of objects. These letters were chosen because all are symmetric along the vertical axis. A prompt card is provided.
SKU: CSV-1000HOTV -
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Charts for CSV1000, Contrast Sensitivity
CSV-1000LH Symbol Chart
The CSV-1000LH Symbol test face provides common symbols for the evaluation of illiterate or non-English speaking patients. The test is also widely used for the evaluation of children. The CSV-1000LH is in the ETDRS format. A patient prompt card is included.
SKU: CSV-1000LH Symbol -
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Charts for CSV1000, Contrast Sensitivity
CSV-1000S Chart
The CSV-1000S test face is widely used for in or out-of-office screenings and for cataract evaluation. This test presents standard visual acuity from 20/15 to 20/200, two rows of spatial frequencies (6 and 12 cycles/degree) and a real-world driver’s scene.
SKU: CSV-1000S -
Charts for CSV1000, Contrast Sensitivity
CSV-1000SLanC Chart
The CSV-l000SLanC test face provides the same tests as the standard CSV-1000S, except that the acuity test is presented in Landolt C format.
This test is very useful when testing patients who cannot read the English alphabet.
SKU: CSV-1000SLanC -
