Imagine looking in the mirror and discovering that your eye has, in addition to its usual pupil, another opening in the iris. That is exactly what happens with polycoria, an eye condition that Periódico Salud describes with clinical precision.
It is not a second functional iris, but rather spots or perforations caused by some previous damage. Most cases are explained by iris diastasis: openings without a pupillary sphincter, resulting from eye surgery, penetrating trauma, or severe inflammation in the front part of the eye.
The problem is not merely cosmetic. Depending on the location of that additional pupil, your vision may be altered: different images reach the macula slightly misaligned, and this can result in strange shadows or even diplopia, that is, seeing two versions of the same thing at the same time.
