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.
Normal adult testes is ovoid and measures approx 3 cm (AP) x 2-4 cm (TR) x 3-5 cm (length), with a volume of 12.5-19 cc 2. However, the size of the testes decreases with age. From the mediastinum testis, several radiating septae extend into the testis forming 250-400 lobules.