What are Cycloplegics drugs?
Cycloplegic drugs are generally muscarinic receptor blockers. These include atropine, cyclopentolate, homatropine, scopolamine and tropicamide. They are indicated for use in cycloplegic refraction (to paralyze the ciliary muscle in order to determine the true refractive error of the eye) and the treatment of uveitis.
Which drug is used as mydriatic when cycloplegia is not required?
Phenylephrine is the most commonly used drug in this category. It is available in a 2.5% and 10% solution. The 10% strength produces an increase in rate but not magnitude of mydriasis and is useful for breaking posterior synechia. Phenylephrine alone will provide for dilation without cycloplegia.
What are Mydriatics drugs?
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.
Is Homatropine a Cycloplegic?
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).
Does anticholinergic cause mydriasis?
Anticholinergic drugs, such as atropine or homatropine, which are used topically in order to counter these effects may produce mydriasis and partial cycloplegia, which may worsen visual performance.
Is tropicamide anticholinergic?
It belongs to a class of drugs known as anticholinergics. Tropicamide works by relaxing certain eye muscles.
Why is homatropine used?
Homatropine ophthalmic (for the eyes) is used to treat an eye condition called uveitis. This medicine is also used to dilate your pupil before an eye exam, or to lower pressure inside the eye after eye surgery. Homatropine ophthalmic may also be used for purposes not listed in this medication guide.
What are the treatments for cycloplegia in children?
The responses to cycloplegia in different age groups and presence of strabismus were also compared. Methods: It is the first study done in our country, atropine eye drops 1% (regimen I) and cyclopentolate eye drops 1% (regimen II) was evaluated in fifty children. Cycloplegic refractions were assessed.
Is there an ideal cycloplegic drug for hyperopic children?
Background: The ideal cycloplegic drug that is safe, effective and convenient in children is not yet available. This study aimed to evaluate the safety and efficacy of two cycloplegic regimens in hyperopic children. The responses to cycloplegia in different age groups and presence of strabismus were also compared.
What is the role of mydriatic and cycloplegic agents in immunosuppression?
The use of mydriatic and cycloplegic agents is an important adjunct to antiinflammatory or immunosuppressive therapy. The major indication for the use of dilating agents is the presence of a ‘significant’ anterior chamber inflammatory response.
What are the advantages and disadvantages of cycloplegia?
In addition, the dilated pupils occurring due to the cycloplegic provides a superior view of the fundus during ophthalmoscopy. The key disadvantages of cycloplegia are the temporary symptoms of blurred vision and photophobia experienced by patients.