Clinical Skills Certificate Course:

Optical Coherence Tomography


Course level:

This course is intended for ophthalmic assistants, technicians and technologists.

Course structure:

This course consists of short, illustrated reading segments. There is a quiz at the end of the course. Upon passing the quiz, the user will receive a certificate of completion.

Estimated time to complete:

Two and one half hours.

Short Course Description:

This course on optical coherence tomography discusses the technology, instrumentation, scanning techniques, qualitative and quantitative analysis, scan errors and scan optimization, scans of the macula and optic nerve head, and OCT angiography (OCT-A). The evolution of OCT technology is also discussed, including the move from time domain to spectal domain technology.

For the Detailed Course Description, see below

The course can be purchased via Paypal (you don't need a Paypal account) by using the button below, $10 for 2 months of access. More than one course can be purchased at the same time by going to the course catalog. Courses can also be purchased via from the course catalog.

After purchase, the course can be accessed immediately by using the "courses" tab on the top menu bar to link to your "my courses" page.

Detailed Course Description

OCT of the Macula

Anatomy of the retina
Characteristics of the OCT scan
Line scan vs. raster scan
Qualitative vs quantitative analysis
Procedures for performing scans
Signal strength and scan optimization
Tracking and repeat scanning

OCT scan of the optic nerve head

Glaucoma and the retinal nerve fiber layer
The TSNIT map
Scanning procedures
Signal strength and scan optimization

OCT: Qualitative Analysis

How the OCT works
Scan protocol types
The OCT retina scan compared to retinal anatomy
Qualitative and quantitative analysis
Qualitative Analysis
      Pre-retinal profile
      Overall retinal profile
      Foveal profile
      Macular profile
OCT and fluorescein angiography in retinal diagnosis

OCT: Scanning Techniques for Qualitative Analysis

OCT scan protocols for qualitative evaluation of the retina
Radial line scan
   Line scan
   Cross-hair scan
   7mm posterior pole scan
   Raster scan
OCT analysis protocols for qualitative evaluation of the retina
    Raster scan review
    Topography/volume scan review
Scanning tips and patient management

OCT: Quantitative Analysis and Scanning Techniques

Optimizing OCT scans
   Media clarity
   The video window
   What makes a good OCT scan?
   Alignment and focus
The Raster Scan for quantitative analysis
Quantitative analysis
Review the scan
Editing individual line scans
Glaucoma scans
   Fast Optic Disc Scan
   Fast RNFL Thickness Scan

From Time Domain to Spectral Domain Technology

Part 1: The limitations of time domain technology

Time Domain and Spectral Domain OCT
The Zeiss Time Domain OCT
OCT A-scans and B-scans vs. Ultrasonic A-scans and B-scans
Shortcomings of time domain technology when performing macular scans
   Motion Artifacts
   Failure to identify RNFL and RPE layers
   Interpolated Data
   Lack of Registration
Shortcomings of time domain technology when used for RNFL thickness analysis
   Motion artifacts
   Failure to identify the borders of the RNFL
   Lack of registration

Part 2: The advances of spectral domain technology

Spectral Domain OCT Technology
Example comparing time domain to spectral domain
Spectral domain technology reduces scanning errors
   Motion artifacts
   Failure to identify RNFL and RPE layers
   Interpolated data
   Lack of registration
RNFL Analysis
Eye tracking and microperimetry

More Advancement in OCT Technology

OCT engineering problems
Eye tracking, repeat scanning, and exam comparisons
OCT Angiography, or OCT-A

Optical Coherence Tomography - Angiography (OCT-A) of the Posterior Pole

OCT-A technology
OCT-A image segmentation
OCT-A image artifacts complicate scan interpretation
OCT-A and the imaging technician

Optical Coherence Tomography - Angiography (OCT-A) of the Optic Nerve

Description of the technology
Problem with scan quality
   What this means for the scanning technician