What is the difference between Miotics and Mydriatics?

Miosis, or myosis, is excessive constriction of the pupil. The term is from Ancient Greek μύειν mūein, “to close the eyes”. The opposite condition, mydriasis, is the dilation of the pupil. Anisocoria is the condition of one pupil being more dilated than the other.

What is the mydriatic and Miotic effect of drug?

Miotic and mydriatic drops work by acting on these different muscles of the iris. The drops are able to control pupil size by targeting two parts of the autonomic nervous system: the sympathetic and parasympathetic systems.

What are the Miotics in pharmacology?

Miotics work by contraction of the ciliary muscle, tightening the trabecular meshwork and allowing increased outflow of aqueous through traditional pathways. Miosis results from action of these drugs on the pupillary sphincter. Adverse effects include brow ache, induced myopia, and decreased vision in low light.

What is the therapeutic use of Miotics?

A muscarinic cholinergic agonist used on the eye to treat elevated intraocular pressure, various types of glaucoma, and to induce miosis. Also available orally to treat symptoms of dry mouth associated with Sjogren’s syndrome and radiotherapy.

What is the difference between a mydriatic and Cycloplegic?

All cycloplegics are also mydriatic (pupil dilating) agents and are used as such during eye examination to better visualize the retina. When cycloplegic drugs are used as a mydriatic to dilate the pupil, the pupil in the normal eye regains its function when the drugs are metabolized or carried away.

What do you mean by Miotics?

of or relating to or causing constriction of the pupil of the eye. “a miotic drug” synonyms: myotic. a drug that causes miosis (constriction of the pupil of the eye)

What is mydriatic effect?

What are mydriatic drugs?

Mydriatics are drugs that cause the dilation of the pupil. Pupillary dilation is needed to allow for a more detailed examination of the inner eye. Dilating is also necessary in procedures, such as surgery to correct cataracts, in order for the surgeon to have access to the inner eye.

What are Miotics?

Drugs that constrict the pupil. They may be used in the treatment of glaucoma and accommodative esotropia and, sometimes, after a mydriatic examination.

What are Miotics examples?

Miotics, Direct-Acting

acetylcholine.
Akarpine.
carbachol.
IsoptoCarpine.
Miochol E.
Miostat.
pilocarpine ophthalmic.
Pilopine HS.

What Miotics are used for cataract surgery?

Acetylcholine chloride intraocular solution (Miochol-E, Bausch + Lomb) and carbachol intraocular solution 0.01% (Miostat, Alcon) are parasympathomimetic medications used during ophthalmic surgeries to induce miosis and after cataract surgery to reduce IOP spikes.

How are mydriatics used in the eye exam?

Mydriatics are a type of medicine that make the pupil of the eye dilate (open up). Mydriatics also tend to relax the focusing muscles of the eye, which means that blurred vision is a common side effect. Topical mydriatics are used during an eye examination to allow visualization of the retina and other structures deep within…

What are the medical conditions associated with mydriatics?

Medical conditions associated with mydriatics: Eye Redness. Organophosphate Poisoning. Pupillary Dilation. Refraction, Assessment. Uveitis.

How are mydriatics used in the sympathetic nervous system?

Mydriatics, such as tropicamide, relax the iris sphincter which is innervated by the parasympathetic nervous system. Other mydriatics, such as phenylephrine, dilate the iris through stimulation of alpha adrenoreceptors which are part of the sympathetic nervous system.

What are the side effects of mydriatics eye drops?

What are Mydriatics? Mydriatics are a type of medicine that make the pupil of the eye dilate (open up). Mydriatics also tend to relax the focusing muscles of the eye, which means that blurred vision is a common side effect.