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.
the study found the average penis had a girth of 4 59 inches 11 66 cm when erect and 3 66 inches 9 31cm when flaccid range the scale the scientists used tracks a range of penis lengths and girths with measurements of length when erect ranging from 1 9 inches 4 8cm to 8 3 inches 21 2cm