By Robert P. Cubbidge
Eye necessities is a brand new sequence of texts which supplies authoritative and obtainable info for all eye care execs, even if in education or in perform. every one pocket advisor is either a quick overview instrument for college kids and a convenient scientific reference consultant for practitioners. With positive factors akin to tables, key bullet issues, scientific pearls, perform pitfalls, summaries, motion icons and gorgeous complete colour illustrations, this sequence has speedily confirmed itself as an exceptional resource of crucial details for trendy readers.
- Practical assistance that's facts based
- Full-color illustrations make clear key information
- Highlighted suggestion sections for sufferers and convenient tables throughout
- Authoritative tips on visible fields from a revered chief within the field
- Provides crucial details in a single handy assessment source
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Additional resources for Visual Fields
Sample text
The causes of fatigue are not fully understood. This effect is termed Troxler fading or Ganzfeld blankout and is thought to be due to the influence of binocular rivalry from the occluded eye. This fading effect, which is thought to be cortical in origin, can be reduced by encouraging fixation to move during the visual field examination. This approach encourages saccadic eye movement, but in doing so may cause fixation instability, as the eye makes small correctional saccades after the initial pursuit movement.
1989). Effects of pupillary constriction on automated perimetry in normal eyes. Ophthalmology 96: 1298–1301. C. J. (1990). Effects of pupillary dilation on automated perimetry in normal patients. Ophthalmology 97: 367–370. 6 Analysis of visual field data Analysis of kinetic perimetry 54 Analysis of suprathreshold static perimetry 55 Analysis of full threshold static perimetry 55 Numeric data 56 Color-scale 56 Probability plots 58 Global visual field indices 62 Mean sensitivity 65 Mean defect and mean deviation 65 Loss variance (standard deviation defect) and pattern standard deviation 65 Short-term fluctuation 67 Corrected loss variance and corrected pattern standard deviation 68 The Glaucoma Hemifield Test 69 Bebié curve 70 Data analysis 71 Serial visual field analysis 72 Analysis of visual field data 54 Analysis of kinetic perimetry Kinetic visual field plots represent a contour map of the hill of vision, analogous to the height contours on a geographical map.
Rabbani, R. C. (1989). Effects of pupillary constriction on automated perimetry in normal eyes. Ophthalmology 96: 1298–1301. C. J. (1990). Effects of pupillary dilation on automated perimetry in normal patients. Ophthalmology 97: 367–370. 6 Analysis of visual field data Analysis of kinetic perimetry 54 Analysis of suprathreshold static perimetry 55 Analysis of full threshold static perimetry 55 Numeric data 56 Color-scale 56 Probability plots 58 Global visual field indices 62 Mean sensitivity 65 Mean defect and mean deviation 65 Loss variance (standard deviation defect) and pattern standard deviation 65 Short-term fluctuation 67 Corrected loss variance and corrected pattern standard deviation 68 The Glaucoma Hemifield Test 69 Bebié curve 70 Data analysis 71 Serial visual field analysis 72 Analysis of visual field data 54 Analysis of kinetic perimetry Kinetic visual field plots represent a contour map of the hill of vision, analogous to the height contours on a geographical map.