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All Frisby Stereo Test Present "real depth" objects viewed with natural vision: no testing glasses are required. Each plate has four random-pattern squares with a circle of pattern elements lying in depth relative to its surround. The depth effect is due to the circle and its surround being printed on opposite sides of the plate. The Frisby Stereo Test has 3 plates allowing for testing stereo acuity disparity as fine as 15 seconds of arc. -
The Lang Fixation Stick has been designed by J. Lang for the assessment of eye fixation, motility, accommodation, convergence, for cover test, and to prepare the patient for testing with the Lang-Stereotest® or the Lang-Stereopad®. -
The Lang-Stereotest® I-R is an easy-to-use screening-test designed for early detection of problems with stereoscopic vision of children. In contrast to most stereo tests it does not require glasses, due to the combination of random dots and a lenticular screen. -
These photographs come on heavy-duty 8-1/2" x 11" cardstock for durability. There are activity suggestions printed on the back of each card. Some photos are identical in everything except the type of vergence demand or the amount of vergence demand. These were designed for the offices who work with just noticeable differences (JND) with their patients. Item #: HDSPVP -
The Lang-Stereopad® is a new device for testing global near stereopsis. It is suitable for all age groups, including preverbal children (less than 1 year). This stereo test does not require the use of special glasses because of the combination of random dots with a lenticular screen, similarly to the the Lang-Stereotests® I-R and II. -
Home Vision Exercises This full-color, forty-minute videotape that was developed by Dr. Joel N. Zaba features an introduction on vision and learning. It contains fourteen vision skills exercises: vision tracking, pursuits, saccadics, eye-hand coordination in sports/play, copying/writing, directionality, visual discrimination, size/shape awareness, vision/body movements and visual memory. Item #: JZ+ -
The magnetic monopod support has been designed specially to be used with the Lang-Stereopad®. The test plate can be easily placed in reading position on a table, both in portrait and landscape position. The magnetic monopod serves also as a handle on the back side of the test plate when the test needs to be shown in frontal position. -
Designed to rapidly test for amblyopia and strabismus in early and non-readers and non-verbal children& adults. Expanded Random Dot Lea Symbols Test (500, 250, 125 seconds of arc). Graded circle test now down to 12.5 seconds with no monocular clues. New improved booklet has answer key on back cover and includes polarized viewers.- Expanded Random Dot Lea Symbols Test
- Graded circle test now down to 12.5 seconds
- No monocular clues with NEW technology
- New improved booklet
- Imprinted images inside booklet for matching
- Answer Key on back cover
- Includes both adult and pediatric polarized viewers
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Random Dot card set for the Bernell-O-Phore. Set of 26 (13 pairs) full color cards. Each pair contains either a unique sport figure, shape pattern or numbered sequence. Images appear when fused. These fusion cards work with the BC300. Item #: BC300ES1 -
Designed to rapidly test for amblyopia and strabismus using gross thru fine stereopsis (4800 to 20 seconds of arc). Graded circle test from 400 seconds now down to 20 seconds with no monocular clues. New improved booklet has answer key on back cover and includes polarized viewers.
- Graded circle test from 400 seconds now down to 20 seconds
- No monocular clues with NEW technology
- New improved booklet
- Answer key on back cover
- Includes both adult and pediatric polarized viewers
+65 6514 0848|info@ophthalmic.com.sg
