What Makes for a Good OCT for Glaucoma

Optical coherence tomographt (OCT) is now used daily for the diagnosis, therapeutic decision-making, and follow-up of glaucoma. In order for OCT to serve its purpose efficiently, correct interpretation of its output requires good knowledge of what constitutes a good and bad scan. A good scan is characterized by the absence of any artifact whereas a bad scan has one or multiple artifacts that must be recognized. Failure to identify the artifacts can lead to misdiagnosis and inappropriate management. This chapter presents the various types of scan artifacts obtained with different OCT devices in glaucoma clinics and explains how to identify them.

[1]  Edem Tsikata,et al.  Patient characteristics associated with artifacts in Spectralis optical coherence tomography imaging of the retinal nerve fiber layer in glaucoma. , 2015, American journal of ophthalmology.

[2]  Christopher Bowd,et al.  Measurement Floors and Dynamic Ranges of OCT and OCT Angiography in Glaucoma. , 2019, Ophthalmology.

[3]  Jean-Claude Mwanza,et al.  Retinal nerve fibre layer thickness floor and corresponding functional loss in glaucoma , 2014, British Journal of Ophthalmology.

[4]  Jay Chhablani,et al.  Prevalence and Distribution of Segmentation Errors in Macular Ganglion Cell Analysis of Healthy Eyes Using Cirrus HD-OCT , 2016, PloS one.

[5]  Hiroshi Ishikawa,et al.  Effect of corneal drying on optical coherence tomography. , 2006, Ophthalmology.

[6]  Esteban Morales,et al.  Macular SD-OCT Outcome Measures: Comparison of Local Structure-Function Relationships and Dynamic Range , 2016, Investigative ophthalmology & visual science.

[7]  Giovanni Staurenghi,et al.  ARTIFACTS IN AUTOMATIC RETINAL SEGMENTATION USING DIFFERENT OPTICAL COHERENCE TOMOGRAPHY INSTRUMENTS , 2010, Retina.

[8]  Gianmarco Vizzeri,et al.  Effect of motion artifacts and scan circle displacements on Cirrus HD-OCT retinal nerve fiber layer thickness measurements. , 2014, Investigative ophthalmology & visual science.

[9]  Jean-Claude Mwanza,et al.  Residual and Dynamic Range of Retinal Nerve Fiber Layer Thickness in Glaucoma: Comparison of Three OCT Platforms. , 2015, Investigative ophthalmology & visual science.

[10]  Tiger Zhou,et al.  Prevalence and type of artefact with spectral domain optical coherence tomography macular ganglion cell imaging in glaucoma surveillance , 2018, PloS one.

[11]  Nicola G Ghazi,et al.  The effect of lubricating eye drops on optical coherence tomography imaging of the retina. , 2009, Digital journal of ophthalmology : DJO.

[12]  James F Vander,et al.  Double fovea artifact. , 2011, Ophthalmology.

[13]  Robin Ray,et al.  Evaluation of image artifact produced by optical coherence tomography of retinal pathology. , 2004, American journal of ophthalmology.

[14]  Sanjay Asrani,et al.  Artifacts in spectral-domain optical coherence tomography measurements in glaucoma. , 2014, JAMA ophthalmology.

[15]  Thomas J T P van den Berg,et al.  The relationship between the optical density of cataract and its influence on retinal nerve fibre layer thickness measured with spectral domain optical coherence tomography , 2013, Acta ophthalmologica.

[16]  Eun Suk Lee,et al.  Influence of Cataract on Time Domain and Spectral Domain Optical Coherence Tomography Retinal Nerve Fiber Layer Measurements , 2010, Journal of glaucoma.

[17]  Joel S Schuman,et al.  Clinical assessment of mirror artifacts in spectral-domain optical coherence tomography. , 2010, Investigative ophthalmology & visual science.

[18]  Sonia H. Yoo,et al.  Effect of Cataract and its Removal on Signal Strength and Peripapillary Retinal Nerve Fiber Layer Optical Coherence Tomography Measurements , 2011, Journal of glaucoma.

[19]  Makoto Nakamura,et al.  Difference in correspondence between visual field defect and inner macular layer thickness measured using three types of spectral-domain OCT instruments , 2014, Japanese Journal of Ophthalmology.

[20]  Jay Chhablani,et al.  Segmentation errors in macular ganglion cell analysis as determined by optical coherence tomography in eyes with macular pathology , 2017, International Journal of Retina and Vitreous.

[21]  Claes H Dohlman,et al.  Boston keratoprosthesis in epithelial downgrowth. , 2009, Digital journal of ophthalmology : DJO.