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Homatropine (Equipin, Isopto Homatropine) is an anticholinergic medication that is an antagonist at muscarinic acetylcholine receptors and thus the parasympathetic nervous system. It is used in eye drops as a cycloplegic (to temporarily paralyze accommodation ), and as a mydriatic (to dilate the pupil ).
A spasm of accommodation (also known as a ciliary spasm, an accommodation, or accommodative spasm) is a condition in which the ciliary muscle of the eye remains in a constant state of contraction. Normal accommodation allows the eye to "accommodate" for near-vision. However, in a state of perpetual contraction, the ciliary muscle cannot relax ...
Cyclopentolate is a muscarinic antagonist. [ 2] It is commonly used as an eye drop during pediatric eye examinations to dilate the eye ( mydriatic) and prevent the eye from focusing/ accommodating ( cycloplegic ). Cyclopentolate [citation needed] or atropine can also be administered to reverse muscarinic and central nervous system effects of ...
Cycloplegia. Cycloplegia is paralysis of the ciliary muscle of the eye, resulting in a loss of accommodation. [1] Because of the paralysis of the ciliary muscle, the curvature of the lens can no longer be adjusted to focus on nearby objects. This results in similar problems as those caused by presbyopia, in which the lens has lost elasticity ...
November 1, 2023 at 6:25 PM. The Food and Drug Administration recently cautioned consumers against using 27 different kinds of eyedrops — its third eyedrop-related warning this year — leading ...
Homatropine methylbromide ( INN; also known as methylhomatropine bromide) is a quaternary ammonium salt of methylhomatropine. It is a peripherally acting anticholinergic medication that inhibits muscarinic acetylcholine receptors and thus the parasympathetic nervous system. It does not cross the blood–brain barrier.
Ophthalmic drug administration is the administration of a drug to the eyes, most typically as an eye drop formulation. Topical formulations are used to combat a multitude of diseased states of the eye. These states may include bacterial infections, eye injury, glaucoma, and dry eye. [1] However, there are many challenges associated with topical ...
Tropicamide, sold under the brand name Mydriacyl among others, is a medication used to dilate the pupil and help with examination of the eye. [ 3] Specifically it is used to help examine the back of the eye. [ 4] It is applied as eye drops. [ 3] Effects occur within 40 minutes and last for up to a day.