OCTA: A practical guide in evaluating patients with retinal diseases


Mr Nishal Patel MD FRCOPHTH, Consultant Ophthalmologist and Medical Retina Specialist, East Kent Hospitals University Foundation NHS Trust, Honorary Senior Lecturer at Kings College London School of Medicine: 1 interactive CET Point

OCT Angiography has become established as the modality of choice in managing retinal patients non-invasively. This presentation will cover the practical uses of OCTA in diagnosing and managing common retinal diseases such as wet AMD, Diabetic retinopathy, Retinal vascular disorders such as retinal artery and vein occlusion. The intention of the talk is to demonstrate the basic approach to identifying typical candidates that would be suitable for this type of imaging. A step by step approach will be used to interpret and study the information produced by these devices so that this can be applied to day to day practice. The audience will be able to use the information from the imaging to decipher abnormalities in retinal anatomy and correlate with vascular changes. The importance of using OCTA with multi-modal imaging will be emphasised to optimise the existing knowledge base with improvement to diagnostic skills.

Using unenhanced, unedited locally acquired prospective real examples from the Topcon Triton Plus OCTA device, the audience will experience high quality exposure to imaging that will allow appreciation and advantages of implementing such technology in their local practice. In summary, multimodal imaging and projected information can be used to educate patients, users and trainees in understanding disease process and help in managing routine and complex patients in both the community and hospital setting. The advantages of compact space saving, singular multimodal imaging machines capable of networked solutions that can be linked with electronic patient records that can be accessed globally will allow change in the paradigm of how retinal diseases will be managed in the future, with the advent of virtual clinics and artificial intelligence.

Learning Objectives

  • To learn how latest developments in OCT technology enable non-invasive assessment of retinal and choroidal blood flow, known as OCT-angiography. The applications and limitations of this technology will also be covered.
  • To learn how swept source OCT is able to penetrate through media opacities when direct methods of fundus examination are difficult. Delegates will also learn how Swept source OCT is enabling non-invasive imaging of retinal and choroidal bloodflow in secondary care which can often show what is required to decide management without conducting an invasive fluorescein angiography. The limitations of OCT-angiography will also be explained and delegates will learn of its possible applications in primary care.
  • To learn the defining features of an OCT angiography scan such as identifying microaneurysms, vascular drop out and retinal ischaemia in diabetic eye disease.
  • To learn how an OCT can identify AMD and how to interpret the data and scans produced and uses the information to manage the patient appropriately. Delegates will also understand how OCT angiography can help view choroidal neovascular membranes.
  • To learn how OCT-angiography can be useful in determining Retinal artery and vein occlusions, ischaemia and areas of non-perfusion and how to manage these conditions.
  • To learn how an OCT angiography can be used to detect early changes in systemic diseases with ocular manifestation such as uveitis and diabetes.
  • To learn how recent advances in OCT technology such as swept source OCT and OCT-angiography allow visualisation of the retina and choroid in the presence of opacities where direct or even indirect methods of examination are difficult.

This piece of CET is approved for Optometrists and Dispensing Opticians


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