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Translaminar Autonomous System Model for the Modulation of Intraocular and Intracranial Pressure in Human Donor Posterior Segments

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Contralateral Forced Eyelid Closure Increases Intraocular Pressure.

Samyuktha Melachuri¹, Laura Palazzolo, Deepinder K Dhaliwal

¹Department of Ophthalmology, (S.M., D.K.D.) University of Pittsburgh Medical Center, Pittsburgh, PA; and Department of Ophthalmology (L.P.), New York University Langone Health, New York, NY.

Eye & Contact Lens

|March 25, 2022

Summary

Forced eyelid closure in the opposite eye can significantly elevate intraocular pressure (IOP) during eye procedures. This finding is crucial for accurate intraoperative IOP monitoring in ophthalmology.

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Area of Science:

Ophthalmology
Physiology

Background:

Intraocular pressure (IOP) is a critical parameter in ophthalmic surgery.
Accurate IOP measurement is essential for patient safety and surgical outcomes.

Purpose of the Study:

To investigate the effect of contralateral forced eyelid closure on intraocular pressure (IOP).

Main Methods:

Healthy volunteers underwent IOP measurement in a supine position.
IOP was recorded under three conditions: relaxed state, with an eyelid speculum, and with contralateral forced eyelid closure.
A handheld tonometer was used for all measurements.

Main Results:

Forced eyelid squeezing in the fellow eye caused a significant increase in IOP.
The mean IOP increase was 7.71±5.08 mm Hg (P<0.001).
This elevation was compared to baseline relaxed IOP measurements.

Conclusions:

Contralateral forced eyelid closure can artificially elevate intraoperative IOP readings.
Surgeons should be aware of this phenomenon to avoid misinterpretation of IOP measurements.
This highlights the importance of patient cooperation and controlled conditions during IOP assessment.