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Orthoptics

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Orthoptics is a profession allied to the eye care profession. Orthoptists are the experts in diagnosing and treating defects in eye movements and problems with how the eyes work together, called binocular vision. These can be caused by issues with the muscles around the eyes or defects in the nerves enabling the brain to communicate with the eyes. Orthoptists are responsible for the diagnosis and non-surgical management of strabismus (cross-eyed), amblyopia (lazy eye) and eye movement disorders.[1] The word orthoptics comes from the Greek words ὀρθός orthos, "straight" and ὀπτικός optikοs, "relating to sight" and much of the practice of orthoptists concerns disorders of binocular vision and defects of eye movement.[2] Orthoptists are trained professionals who specialize in orthoptic treatment, such as eye patches, eye exercises, prisms or glasses. They commonly work with paediatric patients and also adult patients with neurological conditions such as stroke, brain tumours or multiple sclerosis. With specific training, in some countries orthoptists may be involved in monitoring of some forms of eye disease, such as glaucoma, cataract screening and diabetic retinopathy.[3]

Effectiveness

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For children, there is evidence that orthoptics is more effective at treating convergence insufficiency than home-based pencil or computer training; for adults the effectiveness is less evident.[4]

History

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Orthoptics has a long history in supporting ophthalmic care. French ophthalmologist Louis Emile Javal began using ocular exercises to treat strabismus (squint) and described the practice of orthoptics in his writings in the late 19th century. Mary Maddox pioneered the orthoptic profession and was the first documented orthoptist. She was trained by her father, Ernest E. Maddox, in response to increasing patient demand and time needed to examine and treat patients. Ernest Maddox was a reputed ophthalmologist as well as the inventor of various instruments for investigating binocular vision.[5] Mary Maddox started her own practice in London in the early 1920s and her first hospital clinic opened at the Royal Westminster Hospital in 1928.[3][6] The first Australian hospital clinic with orthoptists was established at the Alfred Hospital in Melbourne in 1931.

Current orthoptic practice

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Orthoptists are mainly involved with diagnosing and managing patients with binocular vision disorders which relate to amblyopia, eye movement disorders, extraocular muscle balance such as with version, refractive errors, vergence, accommodation imbalances, positive relative accommodation and negative relative accommodation. They work closely with ophthalmologists to ensure that patients with eye muscle disorders are offered a full range of treatment options. According to the International Orthoptic Association, professional orthoptic practice involves the following:[7]

  • Primary activities
    • Ocular motility diagnosis and co-management[8]
    • Vision screening. In the UK all school vision screening programmes for children between age 4–5 years is orthoptic led. Screening is either conducted by orthoptists or by health professionals who have received extensive training and certification from their local orthoptic department.
    • Assessment of special needs[9]
    • Assessment and rehabilitation in neurological disorders[10]
  • Secondary activities
  • Further activities
    • Specific outpatient waiting list initiatives to reduce the delay for children referred to the eye clinic (filter screening)[20]
    • Joint multidisciplinary children's vision screening clinics (orthoptics/optometry)[21]
    • Organisation/prioritisation of the strabismus surgical admissions list according to agreed criteria
    • Assistance with surgical procedures

Qualifications and training

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In the US, students of orthoptics must attend two years of fellowship training. As of 2019, there were thirteen programs affiliated with medical facilities or universities in the US and three in Canada offering an orthoptic curriculum.[22] In the United Kingdom, Austria, Switzerland and Germany, the orthoptic degree is a full time three-year course, including hospital placements to develop and refine clinical skills and specialism.[23]

Admission criteria vary from school to school; however, national regulations require completion of a baccalaureate degree prior to sitting for the national certifying exams. A personal interview is customarily part of the admissions process. In the UK the majority of orthoptists are employed by the NHS in hospitals or community eye services. They contribute to the wider eye care teams, alongside ophthalmologists and optometrists.

See also

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References

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  1. ^ International Orthoptic Association document "professional role"
  2. ^ "TCOS.ca :: The Canadian Orthoptic Society". Archived from the original on 2008-06-11. Retrieved 2008-07-02.
  3. ^ a b Vukicevic, M., Koklanis, K and Giribaldi, M. Orthoptics: Evolving to meet increasing demand for eye service. In Insight news. March 2013: Sydney, Australia. By Enyeribe Uzoma Emmanuel.
  4. ^ Scheiman M, Kulp MT, Cotter SA, Lawrenson JG, Wang L, Li T (Dec 2, 2020). "Interventions for convergence insufficiency: a network meta-analysis". Cochrane Database Syst Rev. 2020 (12): CD006768. doi:10.1002/14651858.CD006768.pub3. PMC 8092638. PMID 33263359.
  5. ^ "Ernest Edmund Maddox (1863 - 1933)" (in French). 2006-06-03. Retrieved 2014-09-17.
  6. ^ Helveston, EM (2005). "Visual training: current status in ophthalmology". American Journal of Ophthalmology. 140 (5): 903–10. doi:10.1016/j.ajo.2005.06.003. PMID 16310470.
  7. ^ "Archived copy". Archived from the original on July 31, 2009. Retrieved May 16, 2009.{{cite web}}: CS1 maint: archived copy as title (link)
  8. ^ McCarry, B (1999). "Orthoptists' Current Shared Care Role in Ophthalmology". Br Orthopt J. 56: 11–18.
  9. ^ K.Fitzmaurice, H Maclean "A Method of Assessing Visual Performance Applicable to Multi-Handicapped Children." Trans. IXth IOC, 1999 Ed.Cynthia Pritchard, Marli Kohler, Dagmar Verlohr, p 111-5.
  10. ^ Fowler, MS (1991). "Orthoptic Investigation of Neurological Patients Undergoing Rehabilitation". Br Orthopt J. 48: 2–7.
  11. ^ Enrica Colombo: The Orthoptist Visual-Therapist. Trans. VIIth IOC 1991, Ed G.Tillson, p 365.
  12. ^ Fujita, J.; Aoki, S.; et al. (2000). "Orthoptists in Low Vision Clinic". J.O.J. 28: 239–243.
  13. ^ Fitzmaurice, K. (1999). "Low vision rehabilitation: An update". Australian Orthoptic Journal. 34: 9–14.
  14. ^ Amano, M.; Yamaguchi, N.; et al. (1999). "Glaucoma Screening in Health Checkups". J.O.J. 27: 153–158. doi:10.4263/jorthoptic.27.153.
  15. ^ "Australian Orthoptic Board".
  16. ^ Edwards, RS; et al. (1999). "The Role of Orthoptists in Biometry". Br Orthopt J. 56: 19–21.
  17. ^ Georgievski, Z; Koklanis, K; Fenton, A; Koukouras, I. (2007). "Victorian orthoptists' performance in the photo evaluation of diabetic retinopathy". Clinical & Experimental Ophthalmology. 35 (8): 733–738. doi:10.1111/j.1442-9071.2007.01576.x. PMID 17997777. S2CID 8661627.
  18. ^ JW Weiss, M Munck, E Muller-Feuga: The Orthoptist and Electro-Oculography. Trans. Vth IOC 1983, Ed.AP Ravault, Marlis Lenk, p 373-79
  19. ^ "Orthoptists and Prescribing in NSW, VIC and SA — Ranzco". Archived from the original on 2011-09-30. Retrieved 2009-05-13.
  20. ^ VK Lantau et al: State of the Rotterdam Amblyopia Screening Project. Trans. IXth IOC, 1999 Ed.Cynthia Pritchard, Marli Kohler, Dagmar Verlohr, p 39-45.
  21. ^ G.Schalit et al: A New Model for the Evaluation and Management of Strabismus, Amblyopia and Refractive Error in Children. Trans. IXth IOC, 1999 Ed.Cynthia Pritchard, Marli Kohler, Dagmar Verlohr, p 357.
  22. ^ "Become an Orthoptist 2022".
  23. ^ "How do I become an orthoptist?".
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