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  • Title: Spontaneous hyphaema secondary to bleeding from an iris vascular tuft in a patient with a supratherapeutic International normalised ratio: case report.
    Author: Ooi KG, Gupta R, Wang SB, Dance S, Borovik A, Francis IC.
    Journal: BMC Ophthalmol; 2015 Jun 14; 15():60. PubMed ID: 26071139.
    Abstract:
    BACKGROUND: Iris vascular tufts are rare iris stromal vascular hamartomas. Patients with iris vascular tufts generally remain asymptomatic until presenting with a spontaneous hyphaema or with mild intraoperative pupil margin haemorrhage during anterior segment surgery. This is the first reported case of spontaneous hyphaema from iris vascular tuft related to a documented supratherapeutic International Normalised Ratio as a predisposing factor. At 86 years of age, this patient also represents the oldest documented first occurrence of bleeding from an iris vascular tuft. CASE PRESENTATION: An 86 year old Caucasian lady presented with sudden and persisting loss of vision in her right eye, ocular pain and vomiting. She had a supratherapeutic International Normalised Ratio of 3.9 related to Warfarin use. Her intraocular pressure in the right eye was raised at 55 mmHg, with a 1.6 mm hyphaema and multiple iris vascular tufts visible around the entire pupil. CONCLUSION: The present case highlights the risk of anticoagulation therapy as a predisposing factor for spontaneous hyphaema and adds to the management considerations for this condition. It also demonstrates the need for Ophthalmologists to be aware of iris vascular tufts as a cause for spontaneous hyphaema, independent of age and systemic associations.
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