What are the common types of preservatives in eye drops?
preservatives are commonly found in eye drops of all types. The preservatives in the eye drops belong to two different groups, oxidants and surface active substances. All preservatives can potentially cause allergies or inflammation, but oxidative preservatives in eye drops generally seem less inflammatory than superficial substances. Common types of preservatives in eye drops include benzalacium (BAK) and sodium chlorite.
Eye drop types include over -the -counter drops for allergies, slightly dry or red eyes and eye drops for dry eyes, glaucoma, eye infections and inflammatory eyes. Preservatives are substances that are usually added to eye drops to extend their storage life and maintain formulations without bacteria. Most medical eye drops are preserved. The two most common types of preservatives in eye drops are surfaces and oxidants.
Benzalacium is a surface active substance. It's one of theThe most commonly used preservatives in prescription and over-the-counter preparation for red eyes. Generally, these are preservatives for eye drops for glaucoma, increased eye pressure and eye allergy. Its concentration varies depending on the type of wording. Even at low concentrations, benzalacium has the potential for inflammatory and allergic reactions in the eyes.
The oxidation type of preservatives in eye drops is most commonly used by sodium chlorite. It is usually found in the corneal edema, dry or tired eyes as well as eye drops for contact lenses. Oxidative preservatives are generally less allergenic and inflammatory than surface active substances.
There are natural eye drops and sometimes it may be a suitable alternative to preserved formulation. Natural eye drops are usually without preservatives. Can lubricate for dry eyes or contain herbal antihistamine spillsYou on a mild allergic conjunctivitis or redness. This category also includes homeopathic natural eye drops. Eye drops without preservatives are usually in individual, disposable bags to prevent bacterial contamination.
The side effects of preservatives in eye drops are usually related to the dose. Patients who have experienced adverse effects on the formulation of eye drops containing surface -active substances can be switched to formulation with a lower concentration of preservatives of the surface -active substance or one that contains oxidation preservatives. Scientific studies suggest that eye drops without preservatives for glaucoma have a lower level of inflammation and less overall side effects than canned eye drops. Other types of preservatives in eye drops include sodium, purit and benzodecinium bromide.