IC100 Rebound Tonometer
The IC100 is the handheld in iCare's rebound line, and the reason practices buy it is that there is nothing to do to the patient first - no anesthetic drops, no air puff, no calibration. A light probe touch takes the reading, and most patients report barely feeling it. That matters most with the patients who make tonometry difficult: children, patients who flinch at an air puff, and anyone who has learned to dread the pressure check. It is a screening and monitoring instrument rather than a replacement for applanation when the number drives a treatment decision.
What it does
- Patented rebound tonometry: no anesthetic drops, no air puff, no preparation
- Measurement range 7–50 mmHg, accurate to ±1.2 mmHg at or below 20 mmHg
- Red/green light at the probe base indicates correct or incorrect positioning
- Single measurement or a rapid six-series with one button
- Fully portable at 140 g without batteries (230 g with)
- Powered by 4 × AA alkaline batteries
- iCare states the tonometer requires only minimal training
- Multiple interface languages, with measurement and history modes
- No anesthetic drops, no air puff and no calibration
- iCare describes it as suitable for any patient, including the youngest and otherwise non-compliant
Is it right for your practice?
Best fit
Routine glaucoma screening, comprehensive exams, pediatrics, and any lane where staff need a fast handheld IOP option without drops or an air puff.
Why consider it
Rebound tonometry needs no anesthetic drops, no air puff and no calibration. The IC100 weighs 140 g without batteries, so it moves between lanes and screening stations. A red/green indicator at the probe base signals correct positioning, and iCare describes the instrument as suitable for any patient including the youngest and otherwise non-compliant. Measurement range is 7–50 mmHg, accurate to ±1.2 mmHg at or below 20 mmHg against manometry on a 95% tolerance interval.
What to compare
The IC100 measures upright. If you regularly need pressure on supine or reclined patients, that is the IC200's case; the IC100 may feel limiting there. It also does not replace Goldmann where applanation is the documented standard for a particular decision; it changes what pretest and screening cost you in time.
Ask me about
Probe tip cost at your volume, how the readings have compared with your existing tonometer in practices near you, and whether one unit per lane or one shared unit fits how your rooms actually run.
Specifications
| Model | TA011 |
|---|---|
| Measurement Principle | Rebound tonometry (patented) |
| Measurement Range | 7–50 mmHg |
| Accuracy | ±1.2 mmHg (≤20 mmHg) / ±2.2 mmHg (>20 mmHg), 95% tolerance interval relative to manometry |
| Repeatability | <8% coefficient of variation |
| Weight | 140g without batteries / 230g with batteries |
| Dimensions | 24–29 × 35–95 × 215 mm |
| Power | 4 × AA alkaline batteries (1.5V LR6) |
Worth comparing
IC200 Rebound Tonometer
Rebound tonometry with 200 degrees of positional freedom, so IOP can be measured with the patient seated, reclined or fully supine.
NT-510 Non-Contact Tonometer
Non-contact IOP measurement with automatic alignment, designed around patient comfort.
AT-8 & AT-9 Applanation Tonometers
Applanation tonometers designed to mount on the Marco Ultra M and B series slit lamps.
Specifications reviewed: 2026-09-05
Manufacturer source:
iCare: IC100 Rebound Tonometer.
Configurations and specifications change. Ask me to confirm before ordering.
Talk it through with me
Tell me how your practice handles this now and what you want it to do, and we can work through the options together. You do not need to have settled on a product first.