Optical coherence tomography (OCT)
Optical coherence tomography (OCT) is a modern, non-invasive imaging technique used to examine the retina, optic nerve, and anterior segment of the eye. The method is based on high-frequency optical scanning and provides detailed cross-sectional images of ocular tissues. OCT is essential for diagnosing glaucoma, macular degeneration, diabetic retinopathy, and many other eye diseases.
When is OCT prescribed?
- Decreased visual acuity, appearance of spots, distortions, or a “hazy veil” in the field of vision.
- Diagnosis and follow-up of glaucoma, macular holes, and retinal detachment.
- Diabetic retinopathy and macular edema.
- Assessment of the optic nerve in neurological disorders.
- Preoperative evaluation before laser procedures and ocular surgery.
How is the examination performed?
- Preparation. The procedure usually does not require pupil dilation, although in some cases the ophthalmologist may instill eye drops.
- Scanning. The patient fixes their gaze on a target while the device captures layer-by-layer images of the retina and optic nerve.
- Data analysis. Specialized software processes the scans and generates detailed images of ocular structures.
- Medical conclusion. The ophthalmologist evaluates the images to identify pathological changes and assess disease progression.
Types of optical coherence tomography
- Retinal OCT. Examination of the macular area to detect degenerative changes and edema.
- Optic nerve OCT. Used for the diagnosis and monitoring of glaucoma, optic neuropathies, and inflammatory conditions.
- Anterior segment OCT. Assessment of the cornea, anterior chamber angle, and postoperative outcomes.
Advantages of optical coherence tomography in Belarus
- High accuracy. Enables detection of even minimal structural changes in the retina and optic nerve.
- Painless procedure. Non-contact examination without discomfort.
- Fast performance. The examination takes only 5–10 minutes.
- Safety. No ionizing radiation is used, allowing repeated examinations.
In Belarus, optical coherence tomography is performed in modern ophthalmology centers equipped with high-precision diagnostic systems. OCT allows eye diseases to be detected at the earliest stages, enabling timely treatment and helping to prevent vision loss.
This text has been translated using machine translation technology (DeepL API) and may contain inaccuracies.
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