Completely automated applanation– just hit start. Easy-to-use interface and minimal training required.
Multiple applanations required for uncooperative patients. Occasional sporadic IOP readings for some demographics.
With full automation and accuracy similar to that of Goldmann tonometers, the AT-550 is an efficient and easy-to-use choice.
We’ve discussed the necessary evil of puff non-contact tonometers with the Topcon CT-80, and although we like that unit, there’s also a lot to like about the AT550. Unlike the CT-80 from Topcon (or any NCT for that matter), the Reichert has no joystick, chin rest, or viewfinder camera for that matter. In fact, the AT550 couldn’t be further in operation than any other NCT we currently offer on the marketplace because of these absences. Most units require operator guidance and the absolute proper alignment to capture an actual IOP– but the AT550 does all the work for you. Once the patient’s forehead is aligned accordingly, simply push the capture button and the unit does all the rest. There’s no need to stare much at the monitor as there’s no live feed to check the alignment. Instead, there’s a target that self-aligns and fires the puff when ready. You can watch it on the screen go to work– almost as if you’re watching an arcade game run through a demo. Of course, the absence of a chin rest and operator-unit manipulation has us skeptical at first with alignment errors, however the AT550 self-aligns on most patients, and does so quite quickly and without fuss; there’s a lot to like here. We did find that elderly or uncooperative patient’s missed the chin rest, and at times found it difficult to hold still; something that is common among NCTs anyways. We find the Reichert AT550 to be as accurate as all other NCTs and still aesthetically quite modern compared to the current lineup.