For Patients
For Eye Care Professionals
Developed by at the Scarborough Low Vision Centre, the Opsis family of vision assessment systems meets the needs of primary care practitioners, low vision specialists, binocular vision specialists, researchers and outreach programmes.
Opsis measures stereopsis, fixation disparity, contrast sensitivity, visual acuity, vernier acuity and is a primary ally in the differential diagnosis of ocular pathologies and the assessment of vision function.
Opsis has unique features to reduce chair time and enhance diagnostic skills
OpsisLite: An economical alternative for the primary care optometrist and physicianOpsisLV Computerized vision assessment for the low vision specialist for use at 10 feet (3M) with a 22" wide screen monitor is a better logMAR LV chart and contains a unique threshold central field assessment for retinitis pigmentosa and macular function..
OpsisEMR: A comprehensive vision assessment system for the specialists in pathology, low vision, binocular vision and paediatrics
Opsis is available as a complete standalone turnkey system suitable for the exam lane and outreach programmes. The wireless remote keypad easily controls the advanced clinical testing targets.
OpsisNEAR Currently undergoing clinical testing and evaluation, OpsisNEAR is a battery of highly controlled near vision tests to assess vision function of patients with low vision, near binocular vision disorders including aniseikonia and anisophoria. In addition, macular function and illusory contour testing strategies for the early detection of diabetic retinopathy and macular degeneration.
Opsis raises the bar for computerized vision assessment
WHO, ETDRS and ANSI compliant
Simple controls are easily learned without looking at the control (most functions available with just the cursor arrows or mouse buttons)
Random presentation increases accuracy
Opsis is pathology driven, targets have been specifically designed to aid in the diagnosis of ocular disorders and pathologies.
Opsis has been designed by an optometrist using the latest concepts in vision assessment.
 |
Only computer based vision tests or printed charts conform to the brightness and contrast mandated by the WHO. Compare the contrast and brightness of Opsis displayed on a 19" LCD monitor and an AO projector with a halogen upgrade. Replace that antiquated projector with its reduced screen contrast, dusty slides and delicate screen allows you to take acuities with the lights on for improved efficiency and patient comfort. |
Opsis is available with a wide range of PC components including .portable, desktop and wide screen monitors.
Which Opsis is right for your practice?
| Features and specifications | OpsisLite | OpsisEMR | OpsisLV |
| Scale | ft, metres | ft, metres, logMAR | ft, metres, logMAR |
| Optotypes | 3 | 8 | 8 |
| Test distance | 6-30' | 6-30' | 6'-30' |
| Mirrored exam lane | yes | yes | yes |
| Acuity (monitor & distance dependent) | 20/10-20/800 | 20/10-20/800 | 20/13-20/1600 |
| Presentation | ETDRS | ETDRS, AO | ETDRS |
| Format | Sloan, Allen | Sloan, Bailey Lovie, Allen | Sloan, Bailey Lovie |
| Reverse contrast , blue/yellow | no | yes | yes |
| Random letter contrast sensitivity (logCS .0.10 to 2.00) | 20/200 | 20/70, 20/200, | 20/200, 20/400,20/800 |
| 10% contrast ETDRS | no | yes | yes |
| Spatial frequency contrast sensitivity (0.40 to 2.20) | no | 1.5,3,6,12,18 cycles per degree | same |
| Macular function test and central field mapping | no | no | yes |
| Output/Storage | no | record, graph and print | yes |
| Mesopic contrast sensitivity | no | yes | yes |
| Fixation disparity | no | Mallett boxes (vert/hor) variable | yes |
| Stereo acuity | no | Howard Dolman to 20" random | yes |
| Worth dot | no | yes, adjustable size | yes |
| Light/Dark room strategies for anaglyph targets | no | yes | yes |
| Animated fixation target | yes | yes, adjustable size | yes |
| Masking | no | yes | yes |
| Crowding bars (WHO design) | no | yes | yes |
| Bichrome | yes | yes | yes |
| Vernier acuity | no | yes , adjustable | yes |
| Power blocks for cylinder | no | yes, rotatable | yes |
| Fan dial | no | yes, rotatable | yes |
| Jackson cross cyl. target with acuity | yes | yes, adjustable | yes |
| Amsler grid | no | yes, size adjustable | yes |
| Colour vision screening | no | yes | yes |
| Control via | mouse | keypad, keyboard | keyboard, keypad, mouse |
| Simplified Cursor Arrow Control | yes | yes | yes |
| Programmable hot keys | no | yes | yes |
| Direct access acuity | no | yes | yes |
| Third party software integration/communication | no | yes | yes |
| Records and store acuity, contrast sensitivity | no | yes | yes |
| Network compatible | no | yes | yes |
| Suitable for screenings and outreach services | yes | yes | yes |
| Auto calibration | yes | yes | yes |
| Windows 98.2000.XP,Vista compatible | yes | yes | yes |
Prices do not include taxes, shipping charges are extra
How to buy?
Turnkey system includes software, Dell computer, custom wall mount bracket, 2.4ghz extended range wireless Logitech keypad or mouse (version dependent)
Optional extended warranty available.(consult Dell for details)
Software Only
Recommended Hardware:
Processor: Pentium 3 or higher recommended for Opsis, 1.4 ghz or higher for OpsisEMR, Windows 98,2000,XP,Vista.
Display: (Dell, Sony, LG recommended, non glare. 15.4" wide screen or 17" regular will permit up to 20/400 at 20 feet. Opsis supports any size monitor
(If you intend to run educational software then as large a screen as possible with high resolution).
Video settings must be set to native screen resolution.
Download software to USB key or direct to drive, run on host machine, call for activation certificate
Upgrade your present digital system with our competitive upgrade pricing! OpsisEMR is clearly superior. Contact us for details.