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Tonometry2012

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Clinical issues impacting tonometric IOP<br />

Pressure on eyelids<br />

Restraint (including collars)<br />

Blepharospasm and eye movement<br />

Patient posture and head position<br />

Sedation, other drugs administered<br />

Duration of tonometry / multiple measurements<br />

Time of Day<br />

Inter –operator variability<br />

Tonometer type<br />

The patient - e.g. corneal biomechanical properties

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