Visual dysfunction

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A wide range of ocular signs and symptoms occur in ME/CFS. These include eye pain, photophobia (light sensitivity), visual processing problems, floaters and spots, tearing, dry eyes, poor focus, double vision, scotomata, blurred vision, tunnel vision, night blindness, depth-of-field loss, nystagmus, and early cataracts.[1]

Prevalence[edit | edit source]

  • 2001, In a Belgian study, 74.4% of patients meeting the Fukuda criteria and 77.2% of patients meeting the Holmes criteria, in a cohort of 2073 CFS patients, reported a problems with visual accuity.[2]

Symptom recognition[edit | edit source]

Blurred vision is a potential symptom of Long COVID in the World Health Organization's definition.[3]

Notable studies[edit | edit source]

See also[edit | edit source]

Learn more[edit | edit source]

Brian Vastag was able to prove with qEEG and cognitive tests he had "significant problems with visual perception and analysis, scanning speed, attention, visual motor coordination, motor and mental speed, memory, and verbal fluency" winning his long term disability (LTD) claim.[16]

References[edit | edit source]

  1. ↑ Erica Verrillo, “Chapter 3: Symptoms - Vision and Eye Problems” in Chronic Fatigue Syndrome: A Treatment Guide, 2nd Edition. Amazon, 2012. (eBook)
  2. ↑ De Becker, Pascale; McGregor, Neil; De Meirleir, Kenny (December 2001). "A definition‐based analysis of symptoms in a large cohort of patients with chronic fatigue syndrome". Journal of Internal Medicine. 250 (3): 234–240. doi:10.1046/j.1365-2796.2001.00890.x.
  3. ↑ Soriano, Joan B.; Allan, Maya; Alsokhn, Carine; Alwan, Nisreen A.; Askie, Lisa; Davis, Hannah E.; Diaz, Janet V.; Dua, Tarun; de Groote, Wouter; Jakob, Robert; Lado, Marta; Marshall, John; Murthy, Srin; Preller, Jacobus; Relan, Pryanka; Schiess, Nicoline; Seahwag, Archana (October 6, 2021), A clinical case definition of post COVID-19 condition by a Delphi consensus, World Health Organization (WHO) clinical case definition working group on post COVID-19 condition, World Health Organization
  4. ↑ Potaznick, Walter F.A. A.O.; Kozol, Neil (October 1992), "Ocular Manifestations of Chronic Fatigue and Immune Dysfunction Syndrome", Optometry & Vision Science, 69 (10): 811–814, ISSN 1040-5488
  5. ↑ Potaznick, Walter; Kozol, Neil (1994), "Survey of the Ocular Manifestations of Chronic Fatigue Immune Dysfunction Syndrome", Clinical Infectious Diseases, 18: 87-S87, ISSN 1058-4838, retrieved September 4, 2016
  6. ↑ Caffery, B.E.; Josephson, J.E.; Samek, M.J (March 1994), "The ocular signs and symptoms of chronic fatigue syndrome", Journal of the American Optometric Association, 65 (3): 187–191, ISSN 0003-0244, PMID 8201170
  7. ↑ Mastropasqua, L.; Ciancaglini, M.; Carpineto, P.; Iezzi, A. (January 1, 2000), "Ocular manifestations in chronic fatigue syndrome", Annals of Ophthalmology, 32 (3): 219–224, ISSN 1530-4086
  8. ↑ Frolov, V.M.; Petrunia, A.M. (April 2003), "Pathology of the organ of vision in chronic fatigue syndrome", Vestnik Oftalmologii, 119 (2): 45–47, ISSN 0042-465X, PMID 13678013
  9. ↑ Badham, Stephen P.; Hutchinson, Claire V. (August 6, 2013), "Characterising eye movement dysfunction in myalgic encephalomyelitis/chronic fatigue syndrome", Graefe's Archive for Clinical and Experimental Ophthalmology, 251 (12): 2769–2776, doi:10.1007/s00417-013-2431-3, ISSN 0721-832X
  10. ↑ Hutchinson, Claire V.; Badham, Stephen P. (June 2013). "Patterns of Abnormal Visual Attention in Myalgic Encephalomyelitis". Optometry and Vision Science. 90 (6): 607–614. doi:10.1097/opx.0b013e318294c232. ISSN 1040-5488.
  11. ↑ Hutchinson, Claire V.; Maltby, John; Badham, Stephen P.; Jason, Leonard A. (January 2014), "Vision-related symptoms as a clinical feature of chronic fatigue syndrome/myalgic encephalomyelitis? Evidence from the DePaul Symptom Questionnaire", The British Journal of Ophthalmology, 98 (1): 144–145, doi:10.1136/bjophthalmol-2013-304439, ISSN 1468-2079, PMID 24187048
  12. ↑ Wilson, Rachel L.; Paterson, Kevin B.; Hutchinson, Claire V. (December 2015), "Increased Vulnerability to Pattern-Related Visual Stress in Myalgic Encephalomyelitis", Perception, 44 (12): 1422–1426, doi:10.1177/0301006615614467, ISSN 0301-0066, PMID 26562880
  13. ↑ Godts, Daisy; Moorkens, Greta; Mathysen, Danny G P (January 2016), "Binocular Vision in Chronic Fatigue Syndrome", American Orthoptic Journal, 66 (1): 92–97, doi:10.3368/aoj.66.1.92, ISSN 0065-955X, PMID 27799582
  14. ↑ Ahmed, Nadia S.; Gottlob, Irene; Proudlock, Frank A.; Hutchinson, Claire V. (January 17, 2018), "Restricted Spatial Windows of Visibility in Myalgic Encephalomyelitis (ME)", Vision, 2 (1), doi:10.3390/vision2010002
  15. ↑ Wilson, R, Paterson, KB, McGowan, VA, Hutchinson, C (July 2018). "Visual aspects of reading performance in Myalgic Encephalomyelitis (ME)". Frontiers in Psychology. doi:10.3389/fpsyg.2018.01468.
  16. ↑ 16.016.1 Tillman, Adriane (June 4, 2018). "Victory for ME Disability Claim - U.S. Court Upholds Plaintiff's Lawsuit After Being Denied Disability". #MEAction. Retrieved February 2, 2019.

Chronic Fatigue and Immune Dysfunction Syndrome (CFIDS) - Chronic Fatigue and Immune Dysfunction Syndrome is another term for Chronic Fatigue Syndrome, but one which emphasizes the immunological aspects of the disease. Popular in the 1990s, this term has apparently fallen into disuse.

World Health Organization (WHO) - "A specialized agency of the United Nations that is concerned with public health. It was established on 7 April 1948, and is headquartered in Geneva, Switzerland. The WHO is a member of the United Nations Development Group. Its predecessor, the Health Organization, was an agency of the League of Nations." The International Statistical Classification of Diseases and Related Health Problems (ICD) is maintained by WHO.

myalgic encephalomyelitis (M.E.) - A disease often marked by neurological symptoms, but fatigue is sometimes a symptom as well. Some diagnostic criteria distinguish it from chronic fatigue syndrome, while other diagnostic criteria consider it to be a synonym for chronic fatigue syndrome. A defining characteristic of ME is post-exertional malaise (PEM), or post-exertional neuroimmune exhaustion (PENE), which is a notable exacerbation of symptoms brought on by small exertions. PEM can last for days or weeks. Symptoms can include cognitive impairments, muscle pain (myalgia), trouble remaining upright (orthostatic intolerance), sleep abnormalities, and gastro-intestinal impairments, among others. An estimated 25% of those suffering from ME are housebound or bedbound. The World Health Organization (WHO) classifies ME as a neurological disease.

The information provided at this site is not intended to diagnose or treat any illness.
From MEpedia, a crowd-sourced encyclopedia of ME and CFS science and history.

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