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TitleCreatorDescriptionSubject
226 Diffusion Tensor Imaging (DTI)John Pula, MDDiffusion tensor (DT) MRI applies the direction of water diffusion through tissues to map out neural pathways in the brain, such as white matter tracts.Diffusion Tensor Imaging; DTI
227 Diffusion Weighted Imaging (DWI)John Pula, MDDiffusion weighted imaging sequences are often included as part of a routine brain MRI protocol. Imaging provides examples of DWI.Diffusion Weighted Imaging; DWI
228 Digital Subtraction AngiographyDevin D. Mackay, MDExplanation of using digital subtraction angiography in examinations.Digital Subtraction Angiography
229 Direct Carotid Cavernous FistulaEmory Eye CenterSlideshow describing condition.Fistula
230 Direct and Consensual ResponseKarl C. Golnik, MDExplanation of direct and consensual response testing.Direct and Consensual Response
231 Direct-Indirect Ophthalmoscopy (DIO)Irina Krikova, PA-C; Eric Caskey, MD; Alison Crum, MD; Kathleen Digre, MD; James Gilman, CRA, FOPS; Levi Goldfarb, MBA, MD Candidate; Bradley Katz, MD; Ethan Peterson, Videographer; Meagan Seay, DO; Judith Warner, MDA slideshow describing the use of the direct ophthalmoscope.Ophthalmoscopy
232 Disability Evaluation Under Social SecurityJohn Pula, MDA. How do we evaluate visual disorders? 1. What are visual disorders? Visual disorders are abnormalities of the eye, the optic nerve, the optic tracts, or the brain that may cause a loss of visual acuity or visual fields. A loss of visual acuity limits your ability to distinguish detail, read, or do...Visual Impairment; Visual Disorders; Legal Blindness
233 Disc Cupping: The BasicsArnav Gupta, BHSc; Rahul Sharma, MD, MPHA presentation describing optic disc cupping, due to damage of optic nerve fibres.Disc Cupping; Optic Disc
234 Distance Visual Acuity TestingSean Gratton, MDDemonstration of measuring distance visual accuity.Visual Acuity Testing
235 Doppler UltrasonographyDevin D. Mackay, MDExplanation of using doppler ultrasonography in examinations.Doppler Ultrasonography
236 Double Maddox Rod TestNagham Al-Zubidi, MDA description of the double maddox rod test, the equipment used and the techniques for interpreting the exam.Double Maddox Rod Test
237 Double Simultaneous Visual Field StimulationVictoria S. Pelak, MD; James R. Bateman, MD, MPH; Brianne Bettcher, PhDExplanation of the double simultaneous visual field exam, as part of the larger higher order visual function examination. Video accompanies The Clinical Examination of Higher Order Visual Function: Syndrome-based Approach: https://collections.lib.utah.edu/ark:/87278/s6837zqp and Visual Neglect: http...Visual Function; Visual Fields
238 Downbeat NystagmusShirley H. Wray, MD, PhD, FRCPSlideshow describing condition.Downbeat Nystagmus; Oscillopsia
239 Downbeat NystagmusShirley H. Wray, MD, PhD, FRCPThis 58 year old engineer was referred by his neurologist for evaluation of periodic episodes of difficulty focusing and blurred vision for 8 years. In 1981 whilst sightseeing in Newport, he became acutely aware of difficulty focusing and blurry vision. The symptoms lasted for twenty minutes and the...Downbeat Nystagmus; Oscillopsia; Primary Position Downbeat Nystagmus
240 Downbeat Nystagmus Anti-GAD Cerebellar SyndromeRaed Behbehani, MDA patient with Anti-GAD positive Cerebellar syndrome with ataxia and opsoclonus due to downbeat nystagmus , treated with Baclofen with some improvement.Downbeat Nystagmus
241 Downbeat Nystagmus PANShirley H. Wray, MD, PhD, FRCPThis patient carries a diagnosis of multiple sclerosis. See also: http://content.lib.utah.edu/cdm/ref/collection/ehsl-shw/id/317Downbeat Nystagmus; Periodic Alternating Nystagmus; Multiple Sclerosis; Primary Position Downbeat Nystagmus
242 Downbeat Nystagmus PANShirley H. Wray, MD, PhD, FRCPSlideshow describing condition.Downbeat Nystagmus; Periodic Alternating Nystagmus; Multiple Sclerosis
243 Dry Eye SyndromeNANOSPeople with abnormalities of the tear film are diagnosed with "dry eyes", but some patients with "dry eyes" may not feel that their eyes are "dry". Itching, burning, a scratchy sensation, a sensation that there is sand or grit in the eye, or intermittent blurring of the vision can all be symptoms of...Dry Eye Syndrome; Patient Brochure
244 Dry Eye Syndrome (Spanish)NANOSPeople with abnormalities of the tear film are diagnosed with "dry eyes", but some patients with "dry eyes" may not feel that their eyes are "dry". Itching, burning, a scratchy sensation, a sensation that there is sand or grit in the eye, or intermittent blurring of the vision can all be symptoms of...Dry Eye Syndrome; Patient Brochure
245 Dry Eye Syndrome (Danish)NANOSPeople with abnormalities of the tear film are diagnosed with "dry eyes", but some patients with "dry eyes" may not feel that their eyes are "dry". Itching, burning, a scratchy sensation, a sensation that there is sand or grit in the eye, or intermittent blurring of the vision can all be symptoms of...Dry Eye Syndrome; Patient Brochure
246 Dry Eye Syndrome (German)NANOSPeople with abnormalities of the tear film are diagnosed with "dry eyes", but some patients with "dry eyes" may not feel that their eyes are "dry". Itching, burning, a scratchy sensation, a sensation that there is sand or grit in the eye, or intermittent blurring of the vision can all be symptoms of...Dry Eye Syndrome; Patient Brochure
247 Dry Eye Syndrome (Hebrew)NANOSPeople with abnormalities of the tear film are diagnosed with "dry eyes", but some patients with "dry eyes" may not feel that their eyes are "dry". Itching, burning, a scratchy sensation, a sensation that there is sand or grit in the eye, or intermittent blurring of the vision can all be symptoms of...Dry Eye Syndrome; Patient Brochure
248 Dry Eye Syndrome (Hungarian)NANOSPeople with abnormalities of the tear film are diagnosed with "dry eyes", but some patients with "dry eyes" may not feel that their eyes are "dry". Itching, burning, a scratchy sensation, a sensation that there is sand or grit in the eye, or intermittent blurring of the vision can all be symptoms of...Dry Eye Syndrome; Patient Brochure
249 Dry Eye Syndrome (Japanese)NANOSPeople with abnormalities of the tear film are diagnosed with "dry eyes", but some patients with "dry eyes" may not feel that their eyes are "dry". Itching, burning, a scratchy sensation, a sensation that there is sand or grit in the eye, or intermittent blurring of the vision can all be symptoms of...Dry Eye Syndrome; Patient Brochure
250 Dry Eye Syndrome (Portuguese)NANOSPeople with abnormalities of the tear film are diagnosed with "dry eyes", but some patients with "dry eyes" may not feel that their eyes are "dry". Itching, burning, a scratchy sensation, a sensation that there is sand or grit in the eye, or intermittent blurring of the vision can all be symptoms of...Dry Eye Syndrome; Patient Brochure
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