When conducting ophthalmoscopy, single-dose instillation 2.5% solution Irifrin®. Typically, for the creation of mydriasis, it is sufficient to administer 1 drop of 2.5% irifrin® to the conjunctival sac.
The maximum mydriasis is reached after 15-30 minutes and lasts for 1-3 hours.
If it is necessary to maintain mydriasis for a long time, after 1 hour, repeated instillation of Irifrin® is possible.
In adults and children over 12 years with insufficient expansion of the pupil, as well as in patients with a rigid iris (marked pigmentation), 10% irifrin can be used in the same dose for diagnostic dilatation of the pupil.
To remove the spasm of accommodation, a 2.5% solution of Irifrin® in children from 6 years of age and adults is prescribed 1 drop in each eye at night for 4 weeks.
In the case of a persistent accommodation spasm, 10% of the solution of Irifrina® can be used in children from the age of 12 and adults in 1 drop in each eye daily for the night for 2 weeks.
For the diagnostic procedures, a single instillation of a 2.5% solution of Irifrin® is applied:
- as a provocative test in patients with a narrow angle profile of the anterior chamber and suspected of a closed-angle glaucoma. If the difference between the values of intraocular pressure before instillation of Irifrin® and after dilating the pupil is from 3 to 5 mm Hg, the provocative test is considered positive;
- for differential diagnosis of the type of injection of the eyeball: if, after 5 minutes after instillation, the narrowing of the vessels of the eyeball is noted, the injection is classified as superficial, while maintaining the redness of the eye, it is necessary to carefully examine the patient for the presence of iridocyclitis or scleritis, since this indicates the expansion of the more deep-seated vessels .
Iridocyclitis 2.5% or 10.0% Irifrina® solution is used to prevent the development of the posterior synechia that has already formed; to reduce exudation in the anterior chamber of the eye. To this end, 1 drop of the drug is buried in the conjunctival sac of the diseased eye (eyes) 2-3 times a day.
In glaucoma-cyclical crises, the vasoconstrictor effect of phenylephrine helps to reduce intraocular pressure, which is most pronounced with a 10% solution of the drug.
For relief of glaucoma-cyclical crises, 10% of Irifrin® is digested 2-3 times a day.
When preparing patients for surgical interventions 30-60 minutes prior to surgery, a single instillation of 10% Irifrin® solution is made to achieve mydriasis.After opening the shells of the eyeball, repeated instillation of the drug is not allowed. 10% solution is not used for irrigation, impregnation of tampons during surgery and for subconjunctival administration.