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Management of peripheral vision loss

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This slide deck describes low vision management strategies for patients with severely constricted visual fields.

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Management of peripheral vision loss

  1. 1. Low vision management strategies for patients with severely constricted visual fields Content prepared by Dr Meri Vukicevic
  2. 2. Lionel Messina • Lionel • 45y/o • Dx with RP age 30 • C/o: decreased peripheral VA, night blindness, difficulty with light/dark adaptation, problems with mobility
  3. 3. Lionel – Initial consultation GH: Good, no medications POH: Glasses since teenager Vert: R) -0.50/-1.00x45 L) -0.75/-1.00x60 (Single vision distance gls) VA cc: R) 6/12 L) 6/9 Near vision BEO = n5 slowly (takes glasses off to read) Subj Refn: R) -0.75/-1.00x50 = 6/9 pt L) No change Add +1.00 = n5 with light, BEO Contrast (Pelli Robson):0.90 log BEO (moderately reduced contrast) Colour vision (CUCVT): non-specific colour vision loss, greater in the tritan zone Visual field (Humphrey): severely constricted R&L to within 10 degrees from fixation
  4. 4. Peripheral vision – basic functions Image from Wikimedia Commons Author: Sanet Steyn
  5. 5. http://www.medicine.mcgill.ca/physio/vlab/other_exps/eog/images/yargirl.gif
  6. 6. http://adhidas-adhi.blogspot.com.au/2012/11/my-ever-busy-indian-road.html
  7. 7. http://www.dzineblog360.com/2011/03/30-night-time-photographic-images-to-die-for-2/
  8. 8. Scanning training • Simple object • Uncluttered table • Instruct patient to search by moving their eyes – ‘sweeping’ movement – Up, down, left, right
  9. 9. Scanning training Start 1 2 3 4 5 6 End
  10. 10. Scanning training A B C
  11. 11. External service https://www.guidedogsvictoria.com.au/our-services/acquired-brain-injury/
  12. 12. Further reading

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