Parabulbar introduction is that for the procedure?

Parabulbar introduction is like? A comprehensive answer to the question will be presented in the materials of this article. In addition, we will tell you about what this injection is used for, how it is administered, and what medicines are used for this.

general information

Parabulbar injection is the administration of an anesthetic or some other medication through the skin to the lower eyelid. Such an injection procedure is most often performed in ophthalmic practice.

Procedure

Parabulbar injection is a rather painful procedure, in which the needle is inserted to a depth of about 1 centimeter towards the equator of the eye, that is, in the cellulose around the eyeball. Such a method of administering a medicinal substance is used only for acute necessity. It should also be noted that a similar procedure should be conducted only by an experienced ophthalmologist.

When are they used?

Parabulbar injection is a method of administering a medicament that is most commonly used during an eye operation for anesthesia. This method of anesthetizing the operated site is carried out by reducing the sensitivity of nerve receptors. Typically, in such cases, the anesthesiologist uses a 0.5% solution of lidocaine with hyaluronidase for injection.

Features of the procedure

It should be especially noted that parabulbar injection is a procedure that is used to introduce a medicinal product into the lower eyelid region, not only for the anesthetic effect, but also for therapeutic purposes. During therapy, such injections are used for inflammation of the anterior and posterior segments of the eye, as well as for keratitis, neuroretinitis, iridocyclitis and sclerites.

The presented method of administration of a medical device has its own peculiarities, namely:

• Pain during the procedure;
• A limited dose of the drug administered;
• toxicity;
• Possible development of necrosis;
• Scarring of the injection zone.

One can not ignore the fact that not so long ago autoradiography studies showed that, in comparison with the subcutaneous, intramuscular and intravenous route of administration of antibiotic drugs and steroids, parabulbar leads to the greatest content of the drug in the vitreous.

Possible complications

Complications that may well occur with this method of administration include the following pathological conditions:

• Loss of vitreous body ;
• Rupture of posterior capsule;
• Chemosis of the conjunctiva;
• Separation of the cynical ligaments;
• Subconjunctival or retrobulbar hemorrhage;
• Prolapse of the iris.

As you can see, parabulbar injection of the drug is far from a safe procedure. In this regard, doctors use it only in extreme cases.

Medicines intended for parabulbar injection

There are quite a few drugs that are targeted specifically for such a painful introduction. But most often in the lower eyelid area an injection is made with the medicine "Mildronate". It is a synthetic drug that significantly improves the metabolism of tissues and provides them with energy.

As a result of the use of such a drug in patients, the ability to withstand heavy loads increases, and also to recover very quickly after them. Due to such properties, the presented medicament is used for:

• Physical overstrain;
• Reduced working capacity;
• Thrombosis of the central vein of the retina, as well as its branches;
• Retinopathy of various origins, including hypertonic and diabetic;
• Hemophthalmia;
• Hemorrhages in the retina of various origin;
• As part of complex therapy for chronic alcoholism (withdrawal syndrome).

Parabulbar introduction of "Mildronate" - is it like? For this procedure, the preparation is used as a clear, colorless solution. In 1 ml of this agent contains about 100 mg of the active component - meldonia. It should also be noted that the drug "Mildronate" goes on sale in ampoules of 5 ml.

Why can not you administer the drug intramuscularly?

In what form to use such a medicinal product, only an experienced physician should decide. However, the instruction of this medication clearly states that when administered intramuscularly, the drug "Mildronate" is capable not only of irritating effect, but also leading to the development of local painful sensations and allergic reaction.

Other methods of drug administration in ophthalmology

Now you know what parabulbar injection is. However, it should be noted that with certain diseases of the eye, there is an acute need to administer the drug directly under the eyeball. To perform such a procedure, not only parabulbar injection is used. For such an introduction, the subconjunctival method is often used. The choice of this or that method remains with the attending physician. Although subconjunctival administration of the drug, compared with parabulbar, is more painful.

As you know, such an injection is made directly under the conjunctiva of the eye. In view of soreness, it is carried out only after preliminary local anesthesia (instillation of a solution of lidocaine or dicaine).