Free floating pigmented vitreous cyst: a rare case
The present case has been reported in the Indian Journal of Ophthalmology.

A 32-years-old female was referred for a mass in her left eye detected on routine examination. The ocular examination was normal with unaided visual acuity of 20/20 in her left eye. There were no signs of ocular trauma/inflammation. A single, pigmented, free-floating cyst was noted in the anterior vitreous that showed speckled bright areas on infrared reflectance imaging.

In view of no symptoms, the patient was advised conservative management. These cysts have been reported rarely. These may represent choristoma of the hyaloid vascular system or may originate from ciliary epithelium. Acquired cysts can be found in association with retinoschisis, retinitis pigmentosa, trauma, coloboma, retinal reattachment surgeries and intraocular inflammation.

Though usually asymptomatic, vitreous cysts can disturb visual function when cyst floats into the visual axis. A period of observation should be recommended before invasive intervention in the form of laser cystotomy or vitrectomy.

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