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Updated: May 28, 2026

Assessment and Characterization of Hyaloid Vessels in Mice
Published on: May 15, 2019
[Vitreous haemorrhage associated with persistent hyaloid artery]
C Azrak1, E Campos-Mollo, M Lledó-Riquelme
1Servicio de Oftalmología, Hospital General Universitario de Elche, Alicante, España.
Introduction:
Haemorrhage from an entire persistent hyaloid artery (PHA) is an uncommon anomaly.
Case Report:
A 52 year old female presented with blurred vision in her amblyopic eye. Biomicroscopy revealed a blood filled PHA which was inserted in the posterior crystalloid. Ophthalmoscopy showed a mild vitreous haemorrhage. A tubular structure showing a hypo-reflexivity inside the PHA was able to be analysed using optical coherence tomography (OCT). However, Doppler ultrasound did not detect the presence of active blood flow within it.
Conclusions:
The performance of non-invasive imaging tests such as the OCT and Doppler ultrasound may be useful in the study of vitreous haemorrhage associated with PHA.
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