Clinical Trial Items, Ophthalmic Clinical Research
SKU : 7021 7022 7023
Jackson Cross Cylinder 0.25 and 0.50 and 1.00
SKU : 7021 7022 7023
Hand Held Jackson Crossed Cylinder is mounted on a knurled handle, making it easy to flip.
Hand Held Jackson Crossed Cylinder is mounted on a knurled handle, making it easy to flip.
The high optical quality lens has red and black axis etching.
| Brands | Precision Vision |
|---|
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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 -
Near Vision Chart, Ophthalmic Clinical Research
Colenbrander Reading Card Low Vision and Mixed Contrast English
Near Vision Chart, Ophthalmic Clinical ResearchColenbrander Reading Card Low Vision and 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: 4061_
