coloboma microphthalmia anophthalmia bilateral patients gene
coloboma iris typical keyhole eyes location atlas defect seen here edu disorders eyerounds
coloboma ocular retina congenital findings zika vessel infants eyelid auge bleeding diseases
coloboma heterochromia bilateral indicated
microphthalmia coloboma anophthalmia sox2 iris bilateral underdeveloped pupil odd shaped patient demonstrating variability associated same