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Contact lenses designed to diagnose changes in intraocular pressure. These lenses typically consist of a disposable contact lens with an embedded sensor (e.g., a strain gauge) that detects changes in the curvature of the cornea as well as a wireless transmitter with an antenna. The transmitter sends signals with the detected variations to a wearable electronic recorder, usually during a 24-hour time period, including sleep time. The data stored in the recorder is then downloaded to a computer (e.g., personal computer) using a dedicated software that permits the analysis of the recorded data by an ophthalmologist. IOP contact lenses and recorders are mainly used to facilitate the diagnosis and evaluation of glaucoma.
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