ทำไมถึงต้องหยอดยาหดรูม่านตา

<p><span style="color: #00826a;"><strong>Miotic drugs mean</strong></span> drugs that inhibit the parasympathetic autonomic nervous system. Other names used for this group of drugs include miotics, cholinergic agonists, anticholinesterase miotics. Examples of miotic drugs include pilocarpine (Pilocar, Adsorbocarpine, Almocarpine, Isoptocarpine, Ocusert), Demecarium (Humorsol), isoflurophate (Floropryl), echothiophate (Phospholine). Miotic drugs work by pulling the pupil away from the drainage angle of the aqueous humor, with effects lasting 4-6 hours.</p>
<h2 style="color: #008080;"><span style="color: #00826a;">Benefits of using miotic eye drops</span></h2>
<ul>
<li>Miotic drugs pull the pupil away from the drainage angle of the aqueous humor, allowing more aqueous humor to drain, helping to reduce intraocular pressure in the anterior part of the eye.</li>
<li>Used to treat glaucoma as eye drops.</li>
<li>Helps pull the pupil away from the drainage angle of the aqueous humor, opening a channel for doctors to use laser treatment to treat/prevent acute angle-closure glaucoma.</li>
</ul>
<h2 style="color: #008080;"><span style="color: #00826a;">Side effects from using miotic eye drops</span></h2>
<ul>
<li>Blurred vision for 4-6 hours.</li>
<li>May cause eye pain, blurred vision, allergic reactions, nasal congestion, sweating, palpitations, increased saliva, and gastrointestinal symptoms.</li>
</ul>
<h2 style="color: #008080;"><span style="color: #00826a;">Recommendations after using miotic eye drops</span></h2>
<ul>
<li>After using miotic eye drops, vision will be blurred for about 4-6 hours. Driving and reading are not possible.</li>
<li>Patients must be accompanied by a relative every time and/or should not drive themselves after pupil constriction. If the patient comes alone and wishes to have pupil constriction, it is recommended that the patient take a taxi home.</li>
<li>In cases where the patient needs to be sent to another department after pupil constriction, the patient must use a wheelchair for transportation or have staff assistance (if the patient does not wish to use a wheelchair) every time, as there is a risk of falling or other dangers to the patient.</li>
</ul>


When using miotic drugs to constrict the pupil, causing the pupil to be pulled away from the drainage angle that nourishes the eye, side effects may occur. Patients should therefore know how to take initial care of themselves.

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Why is it necessary to use eye drops that constrict the pupil?

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