The Benefits and Drawbacks of Swept Source OCT

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Medical technology has advanced substantially over the past few years. It has not only evolved but has also become more affordable over time. Swept source OCT, which stands for Optical Coherence Tomography, is one such medical technology.

Swept source OCT, which was introduced in 2012, has grown in popularity due to its deeper penetration strength. Ultimately, it has had a favorable impact on and made a significant contribution to the studies of the vitreous body.

In this blog, we will look at the benefits and drawbacks of swept source OCT to better understand why this diagnostic technique has grown so popular in such a short period of time. But first, let’s look at how swept source OCT (SS-OCT) differs from spectral-domain OCT (SD-OCT).

Benefits and Drawbacks of Swept Source OCT

Differences Between SD-OCT & SS-OCT

A. To detect choroidal neovascularization (CNV), both SD-OCT and swept source OCT are used. Moreover, both SD-OCT and SS-OCT employ Fourier domain detection techniques. However, spectral domain OCT equipment uses broadband near-infrared SLDs as a light source, whereas SS-OCT uses tunable swept lasers.

B. The central wavelength of SD-OCT is roughly 1050nm, whereas the central wavelength of SS-OCT is 1060nm.

C. The SD-OCT A-scan rate is 120 kHz, while the SS-OCT A-scan rate is 100 kHz.

D. The SD-OCT imaging depth range is 12 mm, whereas the swept source OCT imaging depth range is 10 mm.

E. SS-OCT is easy to use and requires minimal technical knowledge. SD-OCT, on the other hand, is difficult to operate and requires technical competence to operate.

These are the five primary distinctions between SD-OCT and swept source OCT.

If like to know the benefits and drawbacks of swept source OCT, Check out our blog: Understanding the Advantages & Limitations of Swept Source OCT

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