Drops can be instilled in various ways. Method using two hands. The patient should tilt the head back so that his gaze is directed upwards. The patient must hold the upper and lower eyelids of the eye to the thumb and ring fingers of the non-dominant hand so that they do not close. With the dominant hand, the patient brings a vial of drops to the eye and makes an instillation.
With tremor or severe weakness, this method may not be available, in such cases an alternative method using one hand is used. The patient should tilt the head back so that his gaze is directed upwards. With the dominant hand, he must hold the vial with drops so that it lies on the back of the nose. The bubble nose should be located above the eye. Squeezing the vial, it is necessary to drip drops. With this technique, the patient's nose helps keep the bottle in instillation.
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Excess drops are often excreted through the tears of the eye and then enter the nose. Absorption of the nasal mucosa preparation can significantly enhance its systemic action. Enhanced systemic absorption usually does not affect the action of the drug in the eye, since most drugs penetrate the cornea well, creating enough concentration to saturate the receptors inside the eye. However, increased systemic absorption usually increases the likelihood of unwanted systemic side effects.
Point occlusion with a finger minimizes the ingestion of the drug on the nasal mucosa. To do this, the patient should simply press the common tear ducts with his fingers (nose angle)
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