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Related Experiment Video

Updated: Jul 3, 2026

Transcanalicular Diode Laser-assisted Dacryocystorhinostomy for the Treatment of Primary Acquired Nasolacrimal Duct Obstruction

Transcanalicular Diode Laser-assisted Dacryocystorhinostomy for the Treatment of Primary Acquired Nasolacrimal Duct Obstruction

Published on: October 13, 2017

Intraoperative dilated pupil during nasal polypectomy.

Mudit Jindal¹, Neil Sharma, Nilesh Parekh

¹Department of Otolaryngology, University Hospital Birmingham, Birmingham, UK. mjindal@doctors.org.uk

European Archives of Oto-Rhino-Laryngology : Official Journal of the European Federation of Oto-Rhino-Laryngological Societies (EUFOS) : Affiliated with the German Society for Oto-Rhino-Laryngology - Head and Neck Surgery

|August 9, 2008

Summary

This summary is machine-generated.

Nasal decongestants like phenylephrine can cause dilated pupils during endoscopic sinus surgery. This finding helps ENT surgeons avoid misdiagnosing intraorbital injury.

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Area of Science:

Otolaryngology
Ophthalmology
Pharmacology

Background:

Nasal decongestants are used in endoscopic sinus surgery to reduce bleeding.
A common preparation contains Lidocaine Hydrochloride and Phenylephrine Hydrochloride.

Observation:

A case of unilateral dilated pupil occurred during nasal polypectomy.
Dilated pupils can indicate intraorbital injury during sinus surgery.

Findings:

The nasal decongestive agent Phenylephrine Hydrochloride can cause mydriasis (pupil dilation).
This pharmacological effect can mimic signs of orbital injury.

Implications:

Recognizing drug-induced mydriasis prevents unnecessary patient anxiety and surgical intervention.
This knowledge is crucial for ENT surgeons performing sinonasal procedures.