Most of the eye is filled with a clear gel called the vitreous. Light projects through your pupil and lens to the back of the eye. The inside lining of the eye is covered by special light-sensing cells that are collectively called the retina. It converts light into electrical impulses.
Share. Pethidine is a painkilling drug, as well as an anti-spasmodic, which means that it helps you to relax. It's an opiate that comes from the opium plant (poppy), and is a synthetic version of morphine.Painkilling drugs such as pethidine, diamorphine and less frequently, Meptid, should be available wherever you give birth.hare. Pethidine is a painkilling drug, as well as an anti-spasmodic, which means that it helps you to relax. It's an opiate that comes from the opium plant (poppy), and is a synthetic version of morphine.
Codeine or 3-methylmorphine (a naturally occurring methylated morphine) is an opiate used to treat pain, as a cough medicine, and for diarrhea.odeine-only products can be obtained with a prescription as a time release tablet (e.g., Codeine Contin 100 mg and Perduretas 50 mg). Codeine is also marketed in cough syrups with zero to a half-dozen other active ingredients, and a linctus (e.g., Paveral) for all of the uses for which codeine is indicated.