With glaucoma, drugs from adrenergic blockers are used. Betoftan eye drops are one of the most effective. The instruction indicates that with regular use, they lower intraocular pressure. The rules for using the tool are described in the article.
About intraocular pressure
Before considering the characteristics of the drug, you should familiarize yourself with the symptoms and treatment of intraocular pressure in adults. It is measured in mm. Hg. Art. Throughout the day, indicators can change. But the difference is usually not more than 3 mm. Hg. Art.
The norm of intraocular pressure in adults is 10-23 mm. Hg. Art. This level is needed to maintain microcirculation and metabolic processes in the eyes, to maintain normal optical properties of the retina. Symptoms and treatment of intraocular pressure in adults are interconnected, so an examination should be done.
A much more common high rate of pressure. The reasons include:
- high tone of the arterioles of the ciliary body;
- disruptions of the innervation of the vessels of the eye by the optic nerve;
- deterioration of the outflow of IOP along the schlemm's canal;
- increased pressure in the scleral veins;
- anatomical defects;
- inflammation.
Reduced major pressure is less common, but also a threat to eye health. This usually happens when:
- surgical intervention;
- eye injuries;
- underdevelopment of the eyeball;
- retinal detachment;
- lowering blood pressure;
- choroid detachment;
- underdevelopment of the eyeball.
Elevated intraocular pressure can manifest itself in the form of:
- twilight vision impairment;
- visual impairment;
- field of vision reduction;
- rapid eye fatigue;
- redness of the eyes;
- severe headaches;
- flickering midges;
- discomfort while reading.
You should also be aware of reduced intraocular pressure. Signs are not so noticeable. Often a person does not feel them. But still there are symptoms that manifest themselves in the form of:
- decrease in visual acuity;
- dry cornea and sclera;
- decrease in the density of the eyeball;
- retraction of the eyeball in the orbit.
If there is no medical correction, this can cause complete loss of vision. The choice of therapy depends on the cause, which led to an increase or decrease in intraocular pressure.
With increased, conservative methods are used:
- Drops to improve the nutrition of the tissues of the eye and the outflow of fluid.
- Treatment of the underlying ailment.
- Laser treatment.
And under reduced pressure, the use of:
- Oxygen therapy.
- Vitamin B1 Injection.
- Drops with atropine sulfate.
- Atropine Sulfate Injection.
In general, therapy is based on the treatment of a major ailment that has led to deterioration. Microsurgical technologies are referred to radical methods.
Composition and shape
Eye medicine is released in the form of drops in bottles with dispensers. The capacity is 5 ml, the concentration in 1 ml of 0.5% betaxolol hydrochloride. The component acts as a deactivator of receptors that respond to the production of adrenaline and norepinephrine. With the blocking of beta receptors in the local value, it provides a decrease in the intraocular fluid, which is necessary with a large amount of moisture or with problems with its removal.
The medication is presented in the form of a white suspension. The following substances are isolated from auxiliary components:
- boric acid;
- benzalkonium chloride;
- sodium polystyrenesulfonate;
- sodium edetate;
- carbomer 974P;
- sodium hydroxide solution;
- diluted hydrochloric acid;
- injection water;
- attracts;
- N lauroylsarcosine.
Drops "Betoftan" are in the group of myotic and anti-glaucoma drugs. Although they are effective, they should only be used as directed by a doctor.
Indications
As indicated in the instructions for use, "Betoftan" is effective in the complex treatment of pathologies of the organs of vision. Another tool is used as an independent in the following cases:
- Disruption of the drainage system with an increasing amount of intraocular fluid - open-angle glaucoma. The tool acts by reducing the formation of intraocular fluid, which reduces pressure and eliminates spasm in the place of a compressed optic nerve. When exposed to drops, blood microcirculation is restored and hypoxia is treated at the site of the violation.
- Blocking the channel for draining intraocular fluid, which appears with angle-closure glaucoma. In this case, Betoftan drops normalize the pressure inside the eyes, which will help prevent the need for surgery. The drug is used with myotics, drugs that normalize the outflow of fluid in the eyeball.
- Restoring pressure with hypertension to protect against the appearance of glaucoma.
The effect of ophthalmic drops occurs after a few hours and lasts half a day. Therefore, within 24 hours, it is advisable to use them twice.
Contraindications
As indicated in the instructions, Betoftan eye drops cannot be used in the presence of symptoms that are more likely to manifest more clearly due to the blockade of the beta-receptor beta-receptor agent with the active substance.
An overdose during the testing of the drug was not found, but to exclude probable individual reactions, any changes in the rate of application of drops should be agreed with the doctor. These pathologies include:
- 2 and 3 degrees of violation related to the change in time during which the pulse that is generated by the sinus node reaches the working myocardium of the ventricles
- Rhythm disturbances arising from the exclusion of automatism or the weakening of the function of the atrio-sinus node.
- Changes in the frequency of contractions of the heart muscle with a decrease to 40-50 beats / min.
Eye drops to reduce intraocular pressure should be used carefully in the following cases:
- individual intolerance to components;
- pregnancy and lactation;
- children under 18 years old.
Limited use of the product is required when:
- AV blockade at the initial stage.
- Deterioration of the endocrine glands.
- High in thyroid hormones.
- Bronchial asthma.
- Beta blocker therapy in pill form.
- Symptoms of myocardial weakness.
In the absence of effect when applied as an individual remedy, treatment must be adjusted. To do this, add a drug of another group.
Side effects
As indicated in the instructions, Betoftan eye drops have adverse reactions. They can have local manifestations and systemic complications. This should be considered before taking the drug. Local adverse reactions include the occurrence of:
- photophobia syndrome;
- inflammation in the cornea of the eye;
- short discomfort;
- decrease in sensitivity of the surface of the cornea of the eye;
- the appearance of allergies;
- feelings of dryness in the eyes;
- blurred image;
- lacrimation
- scabies at the site of the violation;
- deformation or resizing of the pupils.
Systemic adverse reactions include:
- the occurrence of bradycardia, arrhythmias and heart failure;
- drowsiness, nausea, dizziness, migraine, depression, impaired transmission of nerve impulses;
- violation of the rhythm of breathing, bronchospasm, increased bronchial asthma, pathology in the places of gas exchange in the lungs.
According to statistics, systemic adverse reactions rarely occur. Usually this happens when you ignore the individual characteristics of the patient when prescribing effective drops for glaucoma.
Instruction manual
As indicated in the instructions, Betoftan eye drops should be used according to the dosage prescribed by the specialist. The norm is one drop, which is fed into the conjunctival part of the eye sac twice a day.
After treatment, the eyelids should be closed for a good absorption of the active ingredient and to minimize the risk of possible complications. To consolidate the effect of lowering intraocular pressure, ophthalmologists may advise using the drug for two weeks.
If drops are prescribed to patients with initial glaucoma, it is required to monitor treatment throughout the course. When combining the drug with other ophthalmic-type medicines, the interval between the use of medicines should be up to ¼ hour.
Nuances
Since the medication includes a preservative that adversely affects soft contact lenses, it is undesirable to wear this optics during therapy. If you can’t refuse the lenses, then they are removed before installation and put on after 15-20 minutes.
If the drug is used for therapeutic purposes and surgery is required, the drops are not withdrawn immediately, but gradually. After instillation, don’t get behind the wheel of a vehicle, as Betoftan instillations lead to a short-term visual acuity disorder.
During pregnancy
During pregnancy, high demands are made on the means that a woman takes. If the medication leads to various side effects, then it is undesirable to use it. This also applies to Betoftan.
But if there is no alternative to this drug, then the use of drops is allowed, but under one condition - the medication is taken in a hospital. This is required for doctors to monitor the condition of the woman, the development of the fetus.
Drops should not be used when breastfeeding. The reason is that the components penetrate the mother’s milk, therefore, enter the baby’s body. But the little child is not yet strong enough. If there is no other way, then breast-feeding should be stopped for the period of treatment.
Interaction with other means
Doctors often prescribe Betoftan drops as an adjuvant in the treatment of glaucoma. They can also be prescribed with other local drugs, but 15 minutes should elapse between procedures. But there are also negative aspects of taking drops with other medicines:
- When using adrenaline injections, mydriasis develops.
- Reserpine and other similar means reduce the heart rate, lowers blood pressure.
- Admission with muscle relaxants enhances their effect.
- The use of sympathomimetics increases the lumen of the vessels.
- The combination with beta-blockers worsens the condition of a person, enhances side effects.
Therefore, before using any medication, you should first consult your doctor. Also, before treatment, you need to carefully read the instructions for use.
Overdose
No cases of overdose were detected. But if a lot of solution penetrated the eyes, rinse them immediately with a stream of warm water. Systemic overdose leads to a drop in blood pressure, convulsions, dizziness and arrhythmias. In this case, gastric lavage and symptomatic treatment are necessary.
To exclude an overdose, you need to carefully follow the procedures. Drops should be instilled only with clean hands, in a comfortable position. Only by observing the dosages will it be possible to provide a positive effect.
Similar means
The analogues of Betoftan include:
- "Xonef."
- Betaxolol.
- Betalmic EU.
- Betak.
- Optibetol.
These drugs are available in the form of drops. The Betaxolol analogue costs about 230-300 rubles per 5 ml. And drops "Betoftan" - 160-250 rubles. This tool is inexpensive and effective. If you use it correctly, you can get rid of the causes of glaucoma and hypertension.