Orthoptist
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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 Strabismus is an eye disorder in which the eyes do not properly align with each other when looking at an object. The eye that is pointed at an object can alternate. The condition may be present occasionally or constantly. If present during a ...
(cross-eyed), amblyopia (lazy eye) and eye movement disorders.International Orthoptic Association document "professional role" 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 Binocular vision is seeing with two eyes. The Field_of_view, field of view that can be surveyed with two eyes is greater than with one eye. To the extent that the visual fields of the two eyes overlap, #Depth, binocular depth can be perceived. Th ...
and defects of eye movement. Orthoptists are trained professionals who specialize in orthoptic treatment, such as eye patches, eye exercises, prisms or
glasses Glasses, also known as eyeglasses (American English), spectacles (Commonwealth English), or colloquially as specs, are vision eyewear with clear or tinted lenses mounted in a frame that holds them in front of a person's eyes, typically u ...
. They commonly work with paediatric patients and also adult patients with neurological conditions such as
stroke Stroke is a medical condition in which poor cerebral circulation, blood flow to a part of the brain causes cell death. There are two main types of stroke: brain ischemia, ischemic, due to lack of blood flow, and intracranial hemorrhage, hemor ...
,
brain tumour A brain tumor (sometimes referred to as brain cancer) occurs when a group of cells within the brain turn cancerous and grow out of control, creating a mass. There are two main types of tumors: malignant (cancerous) tumors and benign (non-cancero ...
s or
multiple sclerosis Multiple sclerosis (MS) is an autoimmune disease resulting in damage to myelinthe insulating covers of nerve cellsin the brain and spinal cord. As a demyelinating disease, MS disrupts the nervous system's ability to Action potential, transmit ...
. With specific training, in some countries orthoptists may be involved in monitoring of some forms of eye disease, such as
glaucoma Glaucoma is a group of eye diseases that can lead to damage of the optic nerve. The optic nerve transmits visual information from the eye to the brain. Glaucoma may cause vision loss if left untreated. It has been called the "silent thief of ...
,
cataract A cataract is a cloudy area in the lens (anatomy), lens of the eye that leads to a visual impairment, decrease in vision of the eye. Cataracts often develop slowly and can affect one or both eyes. Symptoms may include faded colours, blurry or ...
screening and
diabetic retinopathy Diabetic retinopathy (also known as diabetic eye disease) is a medical condition in which damage occurs to the retina due to diabetes. It is a leading cause of blindness in developed countries and one of the lead causes of sight loss in the wor ...
.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.


Effectiveness

For children, there is evidence that orthoptics is more effective at treating
convergence insufficiency Convergence insufficiency is a sensory and neuromuscular anomaly of the binocular vision system, characterized by a reduced ability of the Human eyes, eyes to turn towards each other, or sustain Convergence (eye), convergence. Symptoms The sympto ...
than home-based pencil or computer training; for adults the effectiveness is less evident.


History

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. 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. The first Australian hospital clinic with orthoptists was established at the Alfred Hospital in Melbourne in 1931.


Current orthoptic practice

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 A vergence is the simultaneous movement of both eyes in opposite directions to obtain or maintain single binocular vision. When a creature with binocular vision looks at an object, the eyes must rotate around a vertical axis so that the proj ...
, 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: *Primary activities **Ocular motility diagnosis and co-management **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 **Assessment and rehabilitation in neurological disorders *Secondary activities **Low vision assessment and management **
Glaucoma Glaucoma is a group of eye diseases that can lead to damage of the optic nerve. The optic nerve transmits visual information from the eye to the brain. Glaucoma may cause vision loss if left untreated. It has been called the "silent thief of ...
assessment and stable glaucoma management **Biometry (includes
sonography Medical ultrasound includes diagnostic techniques (mainly imaging) using ultrasound, as well as therapeutic applications of ultrasound. In diagnosis, it is used to create an image of internal body structures such as tendons, muscles, joints ...
work) **Fundus photography and screening **Visual electrodiagnosis **
Retinoscopy Retinoscopy is a technique to obtain an objective measurement of the refractive error of a patient's eyes. How It Works The examiner uses a retinoscope to shine light into the patient's eye and observes the reflection (reflex) off the patient' ...
and refraction, such as using a
phoropter A phoropter or refractor is an ophthalmic testing device. It is commonly used by eye care professionals during an eye examination, and contains different lenses used for refraction of the eye during sight testing, to measure an individual's ref ...
to assess
refractive error Refractive error is a problem with focus (optics), focusing light accurately on the retina due to the shape of the eye and/or cornea. The most common types of refractive error are myopia, near-sightedness, hyperopia, far-sightedness, astigmatis ...
s *Further activities **Specific outpatient waiting list initiatives to reduce the delay for children referred to the eye clinic (filter screening) **Joint multidisciplinary children's vision screening clinics (orthoptics/optometry) **Organisation/prioritisation of the
strabismus Strabismus is an eye disorder in which the eyes do not properly align with each other when looking at an object. The eye that is pointed at an object can alternate. The condition may be present occasionally or constantly. If present during a ...
surgical admissions list according to agreed criteria **Assistance with surgical procedures


Qualifications and training

In the US, students of orthoptics must attend two years of fellowship training. , there were thirteen programs affiliated with medical facilities or universities in the US and three in Canada offering an orthoptic curriculum. 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. 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

*
Bates method The Bates method is an ineffective and potentially dangerous alternative medicine, alternative therapy aimed at improving visual acuity, eyesight. Eye-care physician William Bates (physician), William Horatio Bates (1860–1931) held the err ...
* Diplopia * Dissociated vertical deviation *
Esotropia Esotropia () is a form of strabismus in which one or both eyes turn inward. The condition can be constantly present, or occur intermittently, and can give the affected individual a "cross-eyed" appearance. It is the opposite of exotropia and us ...
* Exotropia * Eye care professional * Eyepatch * Haploscope * Pediatric ophthalmology * Pinhole glasses *
Vision therapy Vision therapy (VT), or behavioral optometry, is an umbrella term for alternative medicine treatments using eye exercises, based around the pseudoscientific claim that vision problems are the true underlying cause of learning difficulties, partic ...
* Vision rehabilitation


References

{{Authority control Diagnostic ophthalmology