Intraocular pressure elevation associated with blood in Schlemm's canal after strabismus surgery

Purpose: To report a case of increased intraocular pressure (IOP) associated with blood in Schlemm's canal following strabismus surgery. Observations: A 43-year-old female presented with acquired comitant esotropia. The patient had undergone an uneventful bilateral medial rectus recession and r...

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Main Authors: Wisaruta Wutthayakorn, Kidakarn Meethongkam, Parnchat Pukrushpan, Sunee Chansangpetch
Format: Article
Language:English
Published: Elsevier 2020-06-01
Series:American Journal of Ophthalmology Case Reports
Subjects:
Online Access:http://www.sciencedirect.com/science/article/pii/S2451993620300402
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author Wisaruta Wutthayakorn
Kidakarn Meethongkam
Parnchat Pukrushpan
Sunee Chansangpetch
author_facet Wisaruta Wutthayakorn
Kidakarn Meethongkam
Parnchat Pukrushpan
Sunee Chansangpetch
author_sort Wisaruta Wutthayakorn
collection DOAJ
description Purpose: To report a case of increased intraocular pressure (IOP) associated with blood in Schlemm's canal following strabismus surgery. Observations: A 43-year-old female presented with acquired comitant esotropia. The patient had undergone an uneventful bilateral medial rectus recession and right lateral rectus resection operation under general anesthesia. Routine post-operative follow-up at day 3 detected a marked chemosis at the temporal side of the conjunctiva, an elevated IOP of 30 mmHg, and the presence of blood in Schlemm's canal in the temporal angle of the right eye. Episcleral venous outflow impairment was hypothesized to be the cause of secondary ocular hypertension in this patient. IOP was controlled with anti-glaucoma drops. Conjunctival chemosis, IOP, and blood in Schlemm's canal gradually decreased, and all topical medications were ceased at 11 weeks after the surgery. Conclusion and importance: An IOP elevation can be an early complication after strabismus surgery. The presence of blood in Schlemm's canal suggests that the cause is impairment of episcleral venous flow. Although the episode can be transient, this report underlines the importance of IOP examination during the early post-operative period.
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spelling doaj.art-151ae3b4bec1466f809be33333f31b6f2022-12-22T01:25:30ZengElsevierAmerican Journal of Ophthalmology Case Reports2451-99362020-06-0118Intraocular pressure elevation associated with blood in Schlemm's canal after strabismus surgeryWisaruta Wutthayakorn0Kidakarn Meethongkam1Parnchat Pukrushpan2Sunee Chansangpetch3Glaucoma Research Unit, Faculty of Medicine, Chulalongkorn University, Bangkok, Thailand; Sawanpracharak Hospital, Nakhon Sawan, ThailandDepartment of Ophthalmology, Faculty of Medicine, Chulalongkorn University and King Chulalongkorn Memorial Hospital, Thai Red Cross Society, Bangkok, ThailandDepartment of Ophthalmology, Faculty of Medicine, Chulalongkorn University and King Chulalongkorn Memorial Hospital, Thai Red Cross Society, Bangkok, ThailandGlaucoma Research Unit, Faculty of Medicine, Chulalongkorn University, Bangkok, Thailand; Department of Ophthalmology, Faculty of Medicine, Chulalongkorn University and King Chulalongkorn Memorial Hospital, Thai Red Cross Society, Bangkok, Thailand; Corresponding author. Department of Ophthalmology, Chulalongkorn University and King Chulalongkorn Memorial Hospital, Glaucoma Research Unit, Faculty of Medicine, Chulalongkorn University, 1873 Rama IV Road, Pathumwan, Bangkok, 10330, Thailand.Purpose: To report a case of increased intraocular pressure (IOP) associated with blood in Schlemm's canal following strabismus surgery. Observations: A 43-year-old female presented with acquired comitant esotropia. The patient had undergone an uneventful bilateral medial rectus recession and right lateral rectus resection operation under general anesthesia. Routine post-operative follow-up at day 3 detected a marked chemosis at the temporal side of the conjunctiva, an elevated IOP of 30 mmHg, and the presence of blood in Schlemm's canal in the temporal angle of the right eye. Episcleral venous outflow impairment was hypothesized to be the cause of secondary ocular hypertension in this patient. IOP was controlled with anti-glaucoma drops. Conjunctival chemosis, IOP, and blood in Schlemm's canal gradually decreased, and all topical medications were ceased at 11 weeks after the surgery. Conclusion and importance: An IOP elevation can be an early complication after strabismus surgery. The presence of blood in Schlemm's canal suggests that the cause is impairment of episcleral venous flow. Although the episode can be transient, this report underlines the importance of IOP examination during the early post-operative period.http://www.sciencedirect.com/science/article/pii/S2451993620300402GlaucomaEpiscleral venous pressureSecondary ocular hypertensionStrabismus surgery
spellingShingle Wisaruta Wutthayakorn
Kidakarn Meethongkam
Parnchat Pukrushpan
Sunee Chansangpetch
Intraocular pressure elevation associated with blood in Schlemm's canal after strabismus surgery
American Journal of Ophthalmology Case Reports
Glaucoma
Episcleral venous pressure
Secondary ocular hypertension
Strabismus surgery
title Intraocular pressure elevation associated with blood in Schlemm's canal after strabismus surgery
title_full Intraocular pressure elevation associated with blood in Schlemm's canal after strabismus surgery
title_fullStr Intraocular pressure elevation associated with blood in Schlemm's canal after strabismus surgery
title_full_unstemmed Intraocular pressure elevation associated with blood in Schlemm's canal after strabismus surgery
title_short Intraocular pressure elevation associated with blood in Schlemm's canal after strabismus surgery
title_sort intraocular pressure elevation associated with blood in schlemm s canal after strabismus surgery
topic Glaucoma
Episcleral venous pressure
Secondary ocular hypertension
Strabismus surgery
url http://www.sciencedirect.com/science/article/pii/S2451993620300402
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AT parnchatpukrushpan intraocularpressureelevationassociatedwithbloodinschlemmscanalafterstrabismussurgery
AT suneechansangpetch intraocularpressureelevationassociatedwithbloodinschlemmscanalafterstrabismussurgery