Like most healthcare professions, the education and certification of optometrists is regulated in most countries. Optometric professionals and optometry-related organizations interact with governmental agencies, other healthcare professionals, and the community to deliver eye- and vision-care.
The average length of an erect penis is 5.16 inches (13.12 centimeters) and the average circumference is 4.59 inches (11.66 centimeters), according to a new analysis of penis length studies involving more than 15,000 men around the world.
approx or average depth and width of vagina is 3 to 4 inch fist intercourse hymin is broken foreplay by boy the girl is prepared for sex and her vagina is very much wet and vegina is elastic so long and wide penis is easily hold into her veginaut on average the size of a girl s vagina from the vaginal opening to the cervical opening is about 3 4 inches most men s penises average from 4 6 inches so during sexual intercourse the body will direct blood to the vagina and vaginal opening along with the labias to anticipate a penal penetration