ABSTRACT
PURPOSE: To describe the pathophysiology of angle-closure glaucoma secondary to idiopathic inflammatory orbital pseudotumor. DESIGN: Retrospective, small noncomparative case series. PARTICIPANTS: Three patients with angle-closure glaucoma and orbital pseudotumor. METHODS: The pathophysiology of this entity was investigated using magnetic resonant imaging (MRI) and ultrasound biomicroscopy (UBM). MAIN OUTCOMES MEASURES: Clinical features, anterior chamber angle configuration, and intraocular pressure. RESULTS: Angle closure from anterior rotation of the ciliary body caused by choroidal effusions secondary to pseudotumor was demonstrated using MRI and UBM. Two of the three cases resolved after treatment for orbital pseudotumor. CONCLUSIONS: Idiopathic orbital pseudotumor is a cause of secondary angle-closure glaucoma. The mechanism of angle closure is anterior rotation of the ciliary body secondary to choroidal effusions resulting from the orbital inflammation.
Subject(s)
Ciliary Body/pathology , Glaucoma, Angle-Closure/etiology , Orbital Pseudotumor/complications , Uveal Diseases/etiology , Adult , Aged , Anterior Chamber/diagnostic imaging , Anterior Chamber/pathology , Ciliary Body/diagnostic imaging , Female , Glaucoma, Angle-Closure/diagnosis , Glaucoma, Angle-Closure/physiopathology , Humans , Intraocular Pressure , Magnetic Resonance Imaging , Male , Orbital Pseudotumor/diagnosis , Orbital Pseudotumor/physiopathology , Retrospective Studies , Torsion Abnormality , Ultrasonography , Uveal Diseases/diagnosis , Uveal Diseases/physiopathologyABSTRACT
PURPOSE: To present the diagnostic and therapeutic challenges of ophthalmia nodosa secondary to tarantula hairs. METHODS: We present a case of a 28-year-old male with a one-week history of skin rash followed by ocular irritation, and blurring of vision after handling a Chilean rose tarantula. A Medline-guided literature search was performed to review the current and historical knowledge of ophthalmia nodosa. The clinical presentation and therapeutic options in ophthalmia nodosa were reviewed. RESULTS: Ophthalmia nodosa is a granulomatous, nodular reaction to vegetable or insect hairs including tarantula hairs. Tarantula hairs can cause inflammation in all levels of the eye, from conjunctiva to retina. Therapy includes surgical removal of offending hairs and medical management of inflammation. CONCLUSIONS: Although tarantulas are considered harmless pets, ophthalmia nodosa is a potential danger when handling a tarantula. Furthermore the management of exposure to tarantula hairs can be difficult.
