Adrenoblockers are used for glaucoma. Betoftan eye drops are one of the effective ones. 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 features of the drug, you should familiarize yourself with the symptoms and treatment of intraocular pressure in adults. It is measured in mm. rt. Art. Throughout the day, indicators can change. But the difference is usually no more than 3 mm. rt. st.
The normal intraocular pressure in adults is 10-23 mm. rt. 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 interrelated, so you should get an examination.
High blood pressure is much more common. Reasons include:
- high toneciliary body arteriole;
- faults in the innervation of the vessels of the eye by the optic nerve;
- deterioration of IOP outflow through Schlemm's canal;
- increased pressure in the scleral veins;
- anatomical flaws;
- inflammation.
Low head pressure is less common but also a threat to eye he alth. This usually happens when:
- surgery;
- eye injuries;
- underdevelopment of the eyeball;
- retinal detachment;
- lowering blood pressure;
- choroid detachment;
- underdevelopment of the eyeball.
Increased intraocular pressure can manifest itself in the form:
- disorders of twilight vision;
- impaired vision;
- reduction of the field of view;
- rapid eye fatigue;
- eye redness;
- severe headaches;
- flickering midges;
- discomfort while reading.
You should also be aware of low intraocular pressure. The signs are not so noticeable. Often a person does not feel them. But still there are symptoms that manifest themselves in the form:
- decrease in visual acuity;
- dryness of the cornea and sclera;
- reducing 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 that led to an increase or decrease in intraocular pressure.
In case of increased use of conservativemethods:
- Drops to improve eye tissue nutrition and fluid outflow.
- Treatment of the main ailment.
- Laser treatment.
And under reduced pressure, the application is effective:
- Oxygen therapy.
- Vitamin B1 injection.
- Drops with atropine sulfate.
- Injections of atropine sulfate.
In general, therapy is based on the treatment of the main ailment that led to the deterioration. Radical methods include microsurgical technologies.
Composition and shape
The medicine for the eyes is released in the form of drops in vials with dispensers. The capacity is 5 ml, the concentration in 1 ml is 0.5% betaxolol hydrochloride. The component acts as a deactivator of receptors that respond to the production of adrenaline and norepinephrine. With blocking of beta receptors in a local sense, it provides a decrease in intraocular fluid, which is necessary with a large amount of moisture or problems with its removal.
The drug is presented as a white suspension. The following substances are distinguished from the auxiliary components:
- boric acid;
- benzalkonium chloride;
- sodium polystyrenesulfonate;
- edetate sodium;
- carbomer 974Р;
- sodium hydroxide solution;
- diluted hydrochloric acid;
- injectable water;
- beckons;
- N lauroylsarcosine.
Betoftan drops are in the group of miotic and antiglaucoma drugs. Although they are effective, apply themshould only be prescribed 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:
- Disturbances in the drainage system with an increasing amount of intraocular fluid - open-angle glaucoma. The tool acts by the method of lowering the formation of intraocular fluid, which reduces pressure and eliminates spasm at the site of the compressed optic nerve. When exposed to drops, blood microcirculation is restored and hypoxia is treated at the site of the violation.
- Blockage of the intraocular fluid drainage channel, which appears with angle-closure glaucoma. In this case, Betoftan drops normalize the pressure inside the eyes, which will help prevent the need for surgical intervention. The tool is used with miotics, drugs that normalize the outflow of fluid in the eyeball.
- Restoration of pressure in hypertension, to protect against the onset of glaucoma.
The effect of ophthalmic drops comes after a few hours and lasts half a day. Therefore, it is advisable to use them twice within 24 hours.
Contraindications
As indicated in the instructions, Betoftan eye drops should not be used in the presence of symptoms that are likely to be more pronounced due to the blockade of beta receptors by the active substance of the drug betoxolot.
Overdose during testingno remedy was found, but to exclude possible 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 impairment, relating to the change in the time it takes for the impulse that is generated by the sinus node to reach the working ventricular myocardium
- Rhythm disturbances resulting from exclusion of automatism or weakening of the function of the atriosinus node.
- Changes in the frequency of contractions of the heart muscle with a decrease to 40-50 bpm.
Eye drops to reduce intraocular pressure should be used carefully in the following cases:
- individual intolerance to components;
- pregnancy and lactation;
- children under 18.
Limited use required when:
- AV block at the initial stage.
- Deterioration of the activity of the endocrine glands.
- High thyroid hormones.
- Asthma.
- Therapies with beta-blocker tablets.
- Symptoms of myocardial weakness.
If there is no effect when used as an individual remedy, the treatment needs to be adjusted. To do this, add a drug of another group.
Side effects
As indicated in the instructions, Betoftan eye drops have side reactions. They may have local manifestations and systemic complications. This should be considered before taking the remedy. Local side effects includeoccurrence:
- photophobia syndrome;
- inflammation in the cornea of the eye;
- short discomfort;
- decrease the sensitivity of the surface of the cornea of the eye;
- allergies;
- feelings of dry eyes;
- blurred image;
- lacrimation;
- scabies at the site of violation;
- deformations or changes in pupil size.
Systemic adverse reactions include:
- occurrence of bradycardia, arrhythmia and heart failure;
- drowsiness, nausea, dizziness, migraine, depression, nerve impulse transmission disorders;
- respiratory rhythm disturbance, bronchospasm, increased bronchial asthma, pathology in the places of gas exchange in the lungs.
According to statistics, systemic adverse reactions are rare. This usually happens when ignoring the individual characteristics of the patient when prescribing effective drops for glaucoma.
Instructions
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, close the eyelids for high-quality 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 remedywithin two weeks.
If drops are prescribed for patients with initial glaucoma, it is required to follow the treatment throughout the course. When combining the drug with other ophthalmic drugs, the interval between the use of medications should be up to ¼ hour.
Nuances
Because the drug contains a preservative that has a negative effect on soft contact lenses, it is undesirable to wear this optic during therapy. If it is impossible to refuse lenses, then they are removed before instillation and put on after 15-20 minutes.
If the drug is used for therapeutic purposes and surgery is required, the drops are not canceled immediately, but gradually. After instillation, you should not drive a vehicle, since Betoftan instillations lead to a short-term impairment of visual acuity.
When Pregnant
During pregnancy, there are high requirements for 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 on one condition - the medication is taken in a hospital. This is required for doctors to control the condition of the woman, the development of the fetus.
Drops should not be used while breastfeeding. The reason is that the components penetrate into the mother's milk, so they enter the baby's body. But a small child is not yet strong enough. If there is no other way out, thenstop breastfeeding for the period of treatment.
Interaction with other means
Often, doctors prescribe Betoftan drops as an adjuvant in the treatment of glaucoma. They can also be prescribed with other local preparations, 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 similar drugs reduce heart rate, lower blood pressure.
- Taking with muscle relaxants enhances their effect.
- The use of sympathomimetics increases the lumen of blood vessels.
- Combination with beta-blockers worsens a person's condition, increases 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 have been identified. But if a lot of solution has penetrated into the eyes, you should immediately rinse them under running warm water. Systemic overdose leads to a drop in blood pressure, convulsions, dizziness and arrhythmia. In this case, gastric lavage and symptomatic treatment are needed.
To avoid overdose, you need to carefully follow the procedures. Drops should be instilled only with clean hands, in a comfortable position. Only if the dosages are observed will it be possible to provide a positive effect.
Similarfunds
Analogues of Betoftan include:
- Xonef.
- Betaxolol.
- Betalmic EU.
- Betak.
- "Optibetol".
These drugs are available in the form of drops. An analogue of "Betaxolol" costs about 230-300 rubles per 5 ml. And drops of "Betoftan" - 160-250 rubles. This tool is inexpensive and effective. If you use it correctly, you will be able to get rid of the causes of glaucoma and hypertension.
