In ancient times, a ring was used to seal a promise, much in the same way rings of different types are used to symbolize promises today. Bishops would wear rings to symbolize their spiritual âmarriageâ or union with the church.
What is Extina? Extina (ketoconazole) is an antifungal medication that prevents fungus from growing on your skin. Extina Foam is used on the skin (topical) to treat a skin condition called seborrheic dermatitis in patients 12 years of age and older. Seborrheic dermatitis can cause areas of flaky skin (scales) on the scalp, face, ears, chest or upper back.
The retina is a thin layer of tissue that lines the back of the eye on the inside. It is located near the optic nerve. The purpose of the retina is to receive light that the lens has focused, convert the light into neural signals, and send these signals on to the brain for visual recognition.