Persistent hyaloid artery with posterior polar cataract: a r
Published in the Kerala Journal of Ophthalmology, the authors describe a case of a 30-year-old male patient who presented to the ophthalmology outpatient department with a complaint of decreased vision right eye. He was nonhypertensive and nondiabetic, with no history of ocular trauma or surgery. He was born

On ocular examination, the best-corrected visual acuity was 20/60 in the right eye and 20/20 in the left eye. Intraocular pressure was 11 mmHg in both the eyes. Examination of the left eye was normal. Slit lamp examination of the right eye revealed a thick posterior polar cataract. Fundus examination depicted white stalk of fibrovascular tissue extending from the optic nerve near its nasal margin to the posterior lens capsule.

The retina around the optic nerve was drawn up in the peripapillary region as a Bergmeister's papilla. A Mittendorf's dot, the anterior attachment was observed at the nasal part of the posterior lens capsule as a significant, circular posterior polar cataract.

Further examination revealed the anterior chamber depth of 3.31 and 3.37 mm, lens thickness of 4.38 and 4.31 mm, central corneal thickness as 458 and 474 mm, and axial length of 22.58 and 23.61 mm in the right and left eye, respectively. Thus, the axial length of the right eye was 1.04 mm shorter than the left eye. The horizontal and vertical corneal diameters were 11 and 10.5 mm, respectively, in both eyes.

B-scan ultrasound right eye revealed the presence of a moderately echogenic band extending from the optic disc to the back of lens. Fluorescein angiography of the right eye revealed a partially patent artery within the fibrovascular stalk, documented with partial filling of the vessel near the disc.

Spectral domain optic coherence tomography at the level of the optic disc revealed the presence of a hollow tubule along with perivascular glial tissue with nasal peripapillary traction. With the help of all these investigative modalities, the case was diagnosed with right persistent hyaloid artery in its complete form. The patient was advised to follow-up annually.

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