Non-US Physicians - maximum of 1.00 CPD
Ophthamology - 1.0 CPD Point(s)
This educational activity is intended for an international audience of non-US neurologists and ophthalmologists.
The goal of this activity is for learners to be better able to detect and diagnose LHON, with a focus on differential diagnosis and recognizing classic as well as atypical presentations and associated management strategies.
Upon completion of this activity, participants will:
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The Faculty of Pharmaceutical Medicine of the Royal Colleges of Physicians of the United Kingdom (FPM) has reviewed and approved the content of this educational activity and allocated it 1.0 continuing professional development credits (CPD).
Approved by The Royal College of Ophthalmologists for 1.0 CPD point.
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CPD Released: 10/6/2022
Valid for credit through: 10/6/2023, 11:59 PM EST
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The following cases are modeled on the interactive grand rounds approach. The questions within the activity are designed to test your current knowledge. After each question, you will be able to see whether you answered correctly and read evidence-based information that supports the most appropriate answer choice. The questions are designed to challenge you; you will not be penalized for answering the questions incorrectly. At the end of the activity, there will be a short post-test assessment based on the material presented.
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A 23-year-old White male university student presented with subacute vision loss in the left eye and reduced color vision in the right eye after a party at a friend's house. During the evening he accidentally walked into an open kitchen cupboard door while intoxicated due to excess alcohol drinking and has a small laceration to his right forehead. No altered consciousness or headaches were reported, and the patient has not noted any pain in his eyes. He is a moderate cigarette smoker with the occasional use of cannabis socially. He has no current medical conditions or medication, and he wears prescriptive lenses (left eye: -3.50; right eye: -3.00) with no astigmatism corrections.
Visual assessments showed a central scotoma in the left eye and visual acuity of 20/200. Color vision was impaired in both eyes. A full ophthalmologic exam was performed including assessment of visual acuity, visual field, color vision, contrast sensitivity, fundoscopy (Figures 1 and 2), and optical coherence tomography (OCT) of both eyes.
Figure 1. Fundoscopy Images of the Left and Right Eyes
Images courtesy of Valerio Carelli, MD.
Figure 2. Visual Field Evaluation of the Left and Right Eyes
Images courtesy of Valerio Carelli, MD.