title: Early and Delayed Effect of Functional Endoscopic Sinus Surgery on Intraocular Pressure.
abstract: IntroductionDue to the close anatomical relationship between the paranasal sinuses and the orbit, involvement or injury of the orbit from paranasal sinuses procedures may occur.ObjectivesWe aimed to study the early and delayed effect of endoscopic sinus surgery on intraocular pressure (IOP).MethodsWe included in the study 38 patients with chronic rhinosinusitis (CRS), undergoing FESS. We performed FESS with the standard anterior to posterior approach. We measured IOP at the same time one day before surgery as well as day 1 and 6 weeks after surgery.ResultsOne day after surgery, mean IOP in the right eye was 14.176 ± 1.91 mm Hg and in the left eye was 13.79 ± 2.42 mm Hg with statistically non-significant difference from preoperative values. Six weeks postoperative, the mean IOP in the right eye was 15.14 ± 2.28 mm Hg. The difference between the mean preoperative and postoperative IOP values was found to be statistically significant(p = 0.0012). While in the left eye, mean postoperative IOP was 15.14 + 2.23mm Hg. The difference between the mean preoperative and postoperative IOP values was also found to be highly statistically significant(p = 0.0005).ConclusionDelayed significant increase in IOP can occur after FESS, Thus, special measures must be taken to reduce IOP to protect the patient́s eye from the risk of increased IOP, especially in patients with glaucoma.
authors.affiliation: Department of Otorhinolaryngology - Head and Neck Surgery, Faculty of Medicine, Zagazig University, Zagazig, Egypt.
authors.forename: Mohammad Waheed
authors.initials: MW
authors.lastname: El-Anwar
authors.affiliation: Department of Otorhinolaryngology - Head and Neck Surgery, Faculty of Medicine, Zagazig University, Zagazig, Egypt.
authors.forename: Mohammad
authors.initials: M
authors.lastname: Abdelhady
authors.affiliation: Department of Otorhinolaryngology - Head and Neck Surgery, Faculty of Medicine, Zagazig University, Zagazig, Egypt.
authors.forename: Hazem Saeed
authors.initials: HS
authors.lastname: Amer
authors.affiliation: Department of Ophthalmology, School of Medicine, Zagazig University, Zagazig, Egypt.
authors.forename: Manar A
authors.initials: MA
authors.lastname: Ghali
keywords: endoscopy; nose; sinusitis