Episodes of monocular blurring of vision during breastfeedin
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A 35-year-old woman presented to the First Ophthalmology Department of the University of Athens, Greece complaining of visual loss over the last 2 months. She described a blurring in the Left Eye (LE) 15–30 minutes following breastfeeding at night hours. She did not use a smartphone during the night and the blurring of vision persisted when the lights were turned on. She is the mother of a 2-month old baby. She does not describe any similar event in the past and her past medical, ocular, and family history are unremarkable. This is the second time she presented to the emergency department for the same reason.

On clinical examination, the uncorrected visual acuity was 20/20 in both eyes. The intraocular pressure was 15 mmHg bilaterally and she had normal direct and consensual pupillary response in both sides. Ocular motility and color vision were normal. Slit-lamp examination demonstrated cells in the anterior chamber (26–50 cells in field/3+ SUN working group grading) whereas the examination of the right eye was unremarkable. In both eyes the lens was clear with no opacities. No angle pigmentation was noticed on gonioscopy in either eye.

Dilated examination revealed a thin pigmented strand of iris in the LE spanning from one edge of the iris to the other (1st to 8th h). This strand was connected at a single point to the anterior capsule of the lens and from the point of connection cells flowed in a linear configuration that ended at the lower part of the anterior chamber. No similar finding was noted in the RE and fundus examination was within normal limits in BE. Blood pressure measurement was 120/70 mmHg. Humphrey visual field test was also unremarkable.

At re-examination, three months later, the patient was asymptomatic (she stated that the episodes gradually decreased in frequency and eventually stopped) and the iris strand could still be detected after dilation of the left eye, it's connection with the anterior lens capsule remained but no cells were detected in the anterior chamber.