probe tube: the component inside the tonometer that the probe moves inside.probe: the disposable item that freely slides in and out of the Icare tonometer and is used to make the measurement.(I won't call it a tube to avoid confusion with the probe tube. probe container: the plastic tube with cap that new probes are sold in.I did try hydrogen peroxide once for cleaning probes and it ruined them - it caused corrosion. Just make sure you blow dry the part with compressed air. However, in my experience, if 70% isopropyl alcohol is all you can find, it will work well. This can cause probes to rust if you leave them in the isopropyl alcohol for an extended period of time, or you don't dry them (e.g., with compressed air). The less pure isopropyl alcohol varieties contain water. I have not found a higher concentration in the USA, but in other countries FitEyes member have stated that they use better than 99% pure isopropyl alcohol. I have used both 70% isopropyl alcohol (available at any corner drug store) and 97% (not as easy to find in USA). The purpose of the compressed air is to both achieve better cleaning results and to dry the parts to prevent corrosion from happening.
(That tube is important if you use my drying method below.) Alternatively, a cordless air duster might work. It generally comes with a plastic tube that optionally attaches to the nozzle. I use a can of compressed air that you can purchase from a camera or electronics shop (or even an office supply store). You may also need a small glass bowl or other container. Most of us use isopropyl alcohol and canned compressed air for cleaning the Icare parts (probes and probe tube). Periodically clean the probe tube/probe base too, using the same supplies. Answer: gently swish the probes in isopropyl alcohol and dry with canned compressed air.
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