Electrotonography
Electrotonography is a modern diagnostic method used to measure intraocular pressure (IOP) and assess the rate of aqueous humor outflow. The examination is applied for early detection of glaucoma, evaluation of the eye’s drainage system, and monitoring of ocular hypertension.
When is electrotonography indicated?
- Suspected glaucoma, even when intraocular pressure values are within the normal range.
- Monitoring the effectiveness of treatment in patients with glaucoma.
- Elevated intraocular pressure or ocular hypertension.
- Preoperative ophthalmic assessment when evaluation of the aqueous outflow system is required.
- As part of a comprehensive eye examination in patients over 40 years of age.
How is the examination performed?
- Topical anesthetic eye drops are instilled to ensure patient comfort.
- A special sensor is placed on the cornea to record changes in intraocular pressure.
- The device continuously measures IOP dynamics over several minutes.
- Based on the obtained data, the physician evaluates aqueous humor outflow and calculates glaucoma risk.
Parameters assessed during electrotonography
- Intraocular pressure (IOP).
- Coefficient of aqueous humor outflow facility.
- Volume of aqueous humor production and circulation rate.
Which conditions can be detected by electrotonography?
- Glaucoma (impaired aqueous outflow and/or elevated intraocular pressure).
- Ocular hypertension (increased IOP without optic nerve damage).
- Functional abnormalities of the eye’s drainage system requiring medical or surgical treatment.
Advantages of electrotonography in Belarus
- High diagnostic accuracy for early-stage glaucoma.
- Safe and minimally uncomfortable procedure.
- Allows assessment of both intraocular pressure and aqueous outflow function.
In Belarus, electrotonography is performed in modern ophthalmology centers equipped with high-precision diagnostic systems. This method enables timely detection of intraocular pressure abnormalities and evaluation of glaucoma risk, supporting early intervention and preservation of vision.
This text has been translated using machine translation technology (DeepL API) and may contain inaccuracies.
