The above picture is what the normal optic nerve looks like.
This is a picture of an optic nerve coloboma. It occurs when the eye doesn't develop completely. A coloboma is like a huge crater with the optic nerve on one of the slopes. This patient's vision is only mildly decreased.
Arizona Eye Care discussed that, this is more likely caused by Patau syndrome Also called Trisomy-13. Condition caused by an extra, third copy of chromosome 13. Symptoms include severe mental retardation, a small head, microphthalmia, a cleft lip or palate, heart defects and extra fingers or toes; many patients also have an iris coloboma and retinal dysplasia (abnormal development). The majority of infants with Patau syndrome die within the first year.
ReplyDelete