Miotic

Miotic

A miotic is a drug that constricts the pupil of the eye. The term is derived from the Greek myein, meaning "to close the eyes". Miotics are typically used in the treatment of glaucoma, a condition that causes damage to the eye's optic nerve and can result in vision loss and blindness.

Mechanism of Action

Miotics work by increasing the outflow of aqueous humor, the clear fluid that fills the front of the eye. This reduces the pressure within the eye, helping to prevent damage to the optic nerve.

Types of Miotics

There are several types of miotics, including:

• Pilocarpine
• Carbachol
• Acetylcholine

Each of these drugs has a slightly different mechanism of action, but all work to increase the outflow of aqueous humor and reduce intraocular pressure.

Side Effects

Like all medications, miotics can have side effects. These may include:

• Blurred vision
• Eye pain
• Headache
• Nausea
• Sweating

If these side effects persist or become severe, patients should contact their healthcare provider.

See Also

• Mydriatic
• Glaucoma
• Aqueous humor
• Optic nerve

References

Miotic Resources
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