Edwards syndrome is a chromosomal abnormality characterized by the presence of an extra copy of genetic material on the 18th chromosome, either in whole (trisomy 18) or in part (such as due to translocations).The additional chromosome usually occurs before conception.t is the second-most common autosomal trisomy, after Down syndrome, that carries to term. Edwards syndrome occurs in around one in 6,000 live births, and around 80% of those affected are female. The majority of fetuses with the syndrome die before birth. The incidence increases as the mother's age increases.
Dilating drops make the pupils of the eyes bigger so that the doctor can see the back of the eye. Because the pupils are bigger, you are more sensitive to light until the effect wears off, and it's a good idea to have sunglasses for use after the exam. Jupiterimages/Goodshoot/Getty Images.
Dilating drops work either by temporarily paralyzing the muscle that makes the pupil smaller (iris sphincter muscle) or by stimulating the iris dilator muscle. Patients with lighter eye color (blue, hazel) are more sensitive and dilate faster than patients with darker eye color (brown).