The Visual Field. BIKANER. … She was referred from … 2. A number of rare conditions like Best's disease, Stargardt's disease and achromatopsia. Page 1 of 9,994 results for VISUAL FIELD Jessica Griego The Visual Field for Technicians 55 slides ... 55 slides ProfSHaque59 Visual field analysis--interpretation 47 slides Rami Shasha Visual Field Defects 15 slides docsarsi Visual Field in Glaucoma 151 slides Suraj Chhetri VISUAL FIELD … This is a quick and basic check of the visual field. You can change your ad preferences anytime. VISUAL FIELD Macular holes. Visual Fields and Glaucoma • Moderate Visual Field Loss – Mean deviation between -6dB and -12dB – On pattern deviation plots, fewer than 50% of points depressed below 5% level and fewer than 25% of points depressed below 1% level – No point within central 5o with sensitivity of < 0dB – Only 1 hemifield containing a point with Peripheral field loss occurs with: 1. Confrontation visual field exam. We use your LinkedIn profile and activity data to personalize ads and to show you more relevant ads. In central static threshold visual fields (Humphrey 30-2 Program) performed with a corrective lens, lens rim artifact (LRA) was present in 10.4% of 704 fields … Effective Perimetry (Zeiss Visual Field Primer, 4th Edition. DR PAAVAN KALRA Visual Field Artefacts and Errors of Interpretation. Visual field testing can be performed by various methods, including confrontation technique, amsler grid, tangent screen, kinetic perimetry, or static perimetry. See our Privacy Policy and User Agreement for details. 3. An analogy commonly used to conceptualize these diagrams is the "island of vision." During this lecture, a step-by-step process to interpret visual field testing will be discussed. This is a common test to evaluate for scotomas and also evaluate any visual field restrictions from eyelid disorders like ptosis (droopy upper eyelid). Discussion of the ocular symptoms and signs associated with lesions along the various parts of the visual pathway. This review will focus primarily on standard automated perimetry (SAP). Find inspiration for data visualization on SlideShare. SAMPLE CASE 2: 78-year-old patient with probable glaucomatous fi eld, showing indications of a cataract, and an arcuate scotoma. If these errors are not too bad, the general gist of the field can be deduced, especially if compared to prior fields. Located where the … Slideshare uses cookies to improve functionality and performance, and to provide you with relevant advertising. INTERPRETATION OF AUTOMATED They can be used for non-commercial presentations free of charge. Visual field testing is an important diagnostic consideration in the evaluation of patients with many different types of pathologies. HIRA NATH DAHAL. PERIMETRY IN GLAUCOMA VISUAL FIELD EXAMINATION Anatomic and physiological ocular changes with age final, No public clipboards found for this slide. A visual field analysis measures your central and peripheral vision which shows us how wide an area your eye can see. After requesting quantified visual field tests, the patient returns with a black and white printout with numbers (eg, Humphrey fields) or coloured lines on a sheet (eg, Goldmann fields). The Humphrey Visual Field Analyzer (HFA; Carl Zeiss Meditec, Inc., Dublin, CA) can be equipped with Glaucoma Progression Analysis (GPA) software, which assists clinicians in their evaluation of serial visual fields by identifying areas where progression may be occurring. If you continue browsing the site, you agree to the use of cookies on this website. DEPARTMENT OF OPHTHALMOLOGY An example of using the rate of visual field decline to predict probable future outcomes in a glaucomatous eye (barring intervention). They'll give your presentations a professional, memorable appearance - the kind of sophisticated look that today's audiences expect. History of 2 CVA’s 3 months prior. This presentation at FOCUS 2016, conducted by Chakrabarti Eye Care Centre, Trivandrum deals with the mistakes made during visual field interpretation. 6. We use your LinkedIn profile and activity data to personalize ads and to show you more relevant ads. Looks like you’ve clipped this slide to already. visual field examination and interpretation of automated perimetry in glaucoma dr paavan kalra department of ophthalmology s p medical college bikaner Slideshare uses cookies to improve functionality and performance, and to provide you with relevant advertising. The health care provider sits directly in front of you. Haag-Streit AG allows the use of this figures for personal or academic use under the conditions that (i) it … Reliability indices. If you are looking for inspiration when creating a PowerPoint presentation, SlideShare is a vast repository with a host of useful ideas and designs, especially in the field of data visualization. To compare the detection and rates of progressive retinal nerve fiber layer (RNFL) and ganglion cell–inner plexiform layer (GCIPL) loss with spectral-domain (SD) OCT and visual field (VF) loss using Guided Progression Analysis (GPA; Carl Zeiss Meditec, Dublin, CA) in glaucomatous eyes classified using International Classification of Diseases (ICD) diagnosis codes. In one form of event-based analysis, Glaucoma Progression Analysis (GPA), individual test locations in the visual field are flagged as possibly, likely, or probably progressed from baseline if the retinal sensitivity at that location has changed by an amount expected in fewer than 5% of stable glaucoma patients (for example: P<0.05) on one, two, or three consecutive visual fields, respectively. Lecture: Visual Field Interpretation. You will be asked to tell when you can see the examiner's hand. Heijl, Bengtsson & Patella, 2012) If you continue browsing the site, you agree to the use of cookies on this website. The final result of a GVF is a diagram similar to a topographic map. Central field loss results from degeneration of the fovea and occurs with: 1. See our User Agreement and Privacy Policy. THRESHOLD VALUES GRAYSCALE MAP PROBABILITY SYMBOLS 60 year old white female. Lecturer: Dr. Karl Golnik. Goldmann Visual Field Interpretation. Your visual field is how wide of an area your eye can see when you focus on a central point. After a bedside visual field examination with waggling fingers and even a red hatpin, you decide that there is an abnormality. Clinic Updates Optometry PPT. Interpretation of results using statistical packages provided by the perimeter systems. Visual Field Defects •Defects in the visual field • Depression: an overall reduction in the height of the hill of vision. 2. Most commonly, it is used for conditions affecting the optic nerve and other forms of neurological disease; but it’s also helpful for retinal conditions and instances when visual field function needs to be measured. – A free PowerPoint PPT presentation (displayed as a Flash slide show) on PowerShow.com - id: 76007e-MjNmM Clipping is a handy way to collect important slides you want to go back to later. Glaucoma AND Different techniques of kinetic and static perimetry. Patient positioning. If you continue browsing the site, you agree to the use of cookies on this website. Leber's optic atrophy. Step-by-step interpretation of a visual field UNTRUSTWORTHY VISUAL FIELD TESTS CAN SHOW SIGNIFICANT DEFECTS FIGURE 8-6 The examples above show several visual field series from different individuals with clinically confirmed normal visual fields and no pathology. Or, the visual field could just be patchy all over. Glaucoma (angle-closure glaucoma and open-angle glaucoma). It is a very important diagnostic tool in evaluating patients with various eye conditions such as Glaucoma. 1. Visual Fields via the Visual Pathway. Neurologic visual field abnormalities will be emphasized and correlated with clinical presentations and near-imaging. Visual field testing is Visual function assessment is integral to the evaluation and management of glaucoma. INTERPRETATION AND Age-related macular degeneration. Questions: If one point has sensitivity of 30 decibels and another point has sensitivity of 27 decibels does it mean that point 1 is 2 times more sensitive than point 2? Most often, as long as everything else is stable (IOP, ONH appearance), we just reorder these fields in a few month’s time. Now customize the name of a clipboard to store your clips. S P MEDICAL COLLEGE Patient instruction and set‐up. Some more common ones are included here. Imagine you are assessing a patient with visual difficulties or optic disc swelling. Refractive errors. In this analogy, the visual field is an island with a central peak and the altitude correlates with the visual sensitivity in a given location. Clipping is a handy way to collect important slides you want to go back to later. VFA visual field assessment - Free download as Powerpoint Presentation (.ppt), PDF File (.pdf), Text File (.txt) or view presentation slides online. 1. The Visual Field Digest Teaching Kit includes all figures and illustrations from the Visual Field Digest. World's Best PowerPoint Templates - CrystalGraphics offers more PowerPoint templates than anyone else in the world, with over 4 million to choose from. Presentation Summary : Case 1:Visual Field Issues. No public clipboards found for this slide. You will cover one eye, and stare straight ahead with the other. • Blind Spot: in the temporal visual field of each eye. Retinal artery occlusion. 7. Tangent screen or Goldmann field … Lastly, blue-on-yellow perimetry and high-pass resolution perimetry, both of which are promising tools for early detection of glaucoma, are introduced. Winner of the Standing Ovation Award for “Best PowerPoint Templates” from Presentations Magazine. The normal eye can detect stimuli over a 120º range vertically and a nearly 160 degree range horizontally. Now customize the name of a clipboard to store your clips. Visual field tests are a method an eye doctor (opthalmologist or optometrist) can use to measure how wide an area you can visualize away from a focal point. Visual field examinations Week 6 Interpreting of visual fields Ret pig * Optic neuritis OD * Interpreting the data Is it a legitimate defect? Performance dif culties. • Constriction: A reduction in the boundary of the field of vision. 5. Visual field printout options. See our Privacy Policy and User Agreement for details. The shape stays intact. Ocular variables. Cone dystrophies[2]. Slideshare uses cookies to improve functionality and performance, and to provide you with relevant advertising. If you continue browsing the site, you agree to the use of cookies on this website. There are many causes of visual field loss. Slideshare uses cookies to improve functionality and performance, and to provide you with relevant advertising. ... Observer interpretation. Humphrey® Field Analyzer II-i Single Field Analysis A Guide to Interpretation SAMPLE CASE 1: 39-year-old patient with normal visual fi eld. Slideshare uses cookies to improve functionality and performance, and to provide you with relevant advertising. Interpretation of the visual field and some tips of the interpretation are outlined in addition to describing differential diagnosis. Automated Visual Field test measures the patient light sensitivity in decibels. Looks like you’ve clipped this slide to already. Fiona Rowe PhD, DBO, CGLI CertEd. You can change your ad preferences anytime. Possible localisation of lesion according to type of visual field … 4. Optic neuropathy. See our User Agreement and Privacy Policy. TESTING 5/25/2018 3 Factors influencing visual field measurements RESPONSE FACTORS Patient instructions Patient’s expectations Examiner’s personality Response criterion The patient’s willingness to say “yes” when a target is presented Strict criterion – higher threshold Relaxed criterion – lower threshold Reaction time In general, the more peripheral the stimulus, the longer At Eye Academy, we use the state of the art Humphrey Visual Field Analyser. visual field testing and interpretation 1. visual field testing and interpretation hira nath dahal 2. presentation layout • introduction on visual field • normal limits of visual field • short overview on history of vf • terminologies related to vf • visual field testing methods • kinetic, static • interpretation …