Intraocular implants ‘raising the bar’ for IOP measurement
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The future of IOP measurements lies in the ability to obtain regular readings from intraocular implants, according to a presenter at the virtual Glaucoma 360 New Horizons Forum.
Such a capability would give “a true sense” of IOP measurement over time without relying on transcorneal measurements, Ike Ahmed, MD, FRCSC, said. “This is where we are heading in raising the bar in IOP.”
Various strategies are used to assess pressure at different times of day, including diurnal tension curves, intervisit IOP ranges, home tonometry, 24-hour measuring devices and provocative tests, Ahmed said.
Temporary-wear contact devices, such as the Sensimed Triggerfish, which measures peripheral corneal curvature changes, offer indirect measurements over a period of time.
“This is something that I think we will be looking at but is not widely used,” Ahmed said.
Intraocular inserts are in various stages of development.
“Miniaturization and wireless transfer and charging of devices allow us to basically get data out of the eye,” Ahmed said.
Implandata’s Eyemate, an implant available commercially in Europe, demonstrates that suprachoroidal and sulcus-based implants can measure IOP over longer periods of time.
“These are the kinds of sensors that will give us more information as well as look at compliance,” Ahmed said.
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Ahmed I. Raising the bar on IOP assessment. Presented at: Glaucoma 360 New Horizons Forum; Jan. 30, 2021 (virtual meeting).
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