An OCT (Optical Coherence Tomography) machine is a non-invasive eye scanner that uses near-infrared light to create detailed, microscopic, 3D cross-sectional images of the retina and optic nerve, functioning like an "internal ultrasound" with light to map tissue layers, detect subtle changes from diseases (like glaucoma, macular degeneration, diabetic eye issues), and guide treatment, all without contact or pain. It provides immediate results, offering early diagnosis and monitoring capabilities far beyond standard photos.
OCT Machine
Overview
How it Works (Core Principles)
- Light-Based Imaging: It sends low-intensity near-infrared light into the eye, which reflects off different retinal layers.
- Interferometry: The machine measures the time it takes for light to bounce back, similar to radar, to build a depth profile.
- Cross-Sectional Views: By scanning, it generates detailed "slices" or blueprints of the retina's structure, revealing abnormalities in thickness or fluid.
Key Features & Benefits
- Non-Invasive: No physical contact, incisions, or injections are needed.
- High Resolution: Provides microscopic detail (micron-level accuracy) of retinal layers.
- 3D Imaging: Offers a 3D view, crucial for seeing deep structural changes.
- Early Detection: Spots disease signs (like nerve fiber thinning or fluid) before vision loss.
- Fast & Painless: The scan takes minutes and is comfortable.