Optical Coherence Tomography (OCT): Market & Technology Overview
Optical Coherence Tomography (OCT) is a non-invasive imaging technique that uses light waves to capture micrometer-resolution, cross-sectional images of biological tissues. It's particularly vital in ophthalmology, cardiology, and dermatology.
What Is OCT?
Works similarly to ultrasound, but uses light instead of sound.
Provides real-time, high-resolution 2D and 3D images.
Key for diagnosing and monitoring diseases like macular degeneration, diabetic retinopathy, glaucoma, and coronary artery disease.
Applications
Ophthalmology: Retinal imaging, corneal thickness measurements
Cardiology: Intravascular imaging for plaque characterization
Dermatology: Skin lesion evaluation
Oncology: Tumor margin assessment
Research: Tissue engineering, biomaterials
Market Snapshot
Global Market Size (2024): USD 1.5–1.8 billion
Projected CAGR (2024–2032): ~8–10%
Drivers:
Growing elderly population
Increasing eye disorders and lifestyle diseases
Technological advancements in portable and handheld OCT devices
OCT Technologies
Time-Domain OCT (TD-OCT) – First-generation
Spectral-Domain OCT (SD-OCT) – Faster and higher resolution
Swept-Source OCT (SS-OCT) – Deeper tissue penetration and wider scan range
Leading Companies
Carl Zeiss Meditec AG
Heidelberg Engineering
Optovue (acquired by Luneau Technology)
Topcon Corporation
Canon Medical Systems
NIDEK Co., Ltd.