title: Changes in the retinal vascular network morphology (diameter and tortuosity) after administration of intravitreal bevacizumab in a patient with ischaemic branch retinal vein occlusion.
abstract: We report a case of transient reduction in the diameter and tortuosity of an occluded vessel after intravitreal administration of 1.25 mg (0.05 ml) bevacizumab in a patient with ischaemic branch retinal vein occlusion. A 64-year-old hypertensive female presented with chief complaints of reduced vision in her right eye for 3 months. Her vision in the right eye was evaluated as counting fingers at 2 m. Fundus examination revealed superotemporal branch retinal vein occlusion. On fluorescein angiography, in the superotemporal quadrant, there was hyperfluorescence that increased in size and intensity in the late phase, suggestive of a leaking neovascular frond. In addition, there was capillary non-perfusion in the adjacent area. The patient was administered 1.25 mg (0.05 ml) of bevacizumab intravitreally in her right eye, under all aseptic precautions. After 1 week, her right eye fundus showed regression of neovascularisation. Fluorescein angiography also demonstrated regression of neovascularisation in addition to a decrease in the diameter and tortuosity of the retinal vessel.
authors.affiliation: National Institute of Ophthalmology, Pune, India.
authors.forename: Aditya
authors.initials: A
authors.lastname: Kelkar
authors.affiliation: National Institute of Ophthalmology, Pune, India.
authors.forename: Rachana
authors.initials: R
authors.lastname: Shah
authors.affiliation: National Institute of Ophthalmology, Pune, India.
authors.forename: Jai
authors.initials: J
authors.lastname: Kelkar
authors.affiliation: National Institute of Ophthalmology, Pune, India.
authors.forename: Shreekant
authors.initials: S
authors.lastname: Kelkar
authors.affiliation: National Institute of Ophthalmology, Pune, India.
authors.forename: Shilpa
authors.initials: S
authors.lastname: Bhirud
authors.affiliation: National Institute of Ophthalmology, Pune, India.
authors.forename: Poonam
authors.initials: P
authors.lastname: Gandhi
keywords: Bevacizumab; Branch retinal vein occlusion; Retinal vessel morphology