assessment of visual functioning with special reference to infants
DESCRIPTION
Assessment of visual functioning with special reference to infants. Lea Hyvärinen, MD, PhD, FAAP Professor h.c., Rehabilitation Sciences, University of Dortmund Senior Lecturer, Developmental Neuropsychology, Univ. of Helsinki www.lea-test.fi Tampa USF October 2011. Visual communication. - PowerPoint PPT PresentationTRANSCRIPT
![Page 1: Assessment of visual functioning with special reference to infants](https://reader036.vdocument.in/reader036/viewer/2022062517/56812cd8550346895d91988b/html5/thumbnails/1.jpg)
Assessment of visual functioning with special reference to infants
Lea Hyvärinen, MD, PhD, FAAP
Professor h.c., Rehabilitation Sciences, University of Dortmund
Senior Lecturer, Developmental Neuropsychology, Univ. of Helsinki
www.lea-test.fiTampa USF October 2011
![Page 2: Assessment of visual functioning with special reference to infants](https://reader036.vdocument.in/reader036/viewer/2022062517/56812cd8550346895d91988b/html5/thumbnails/2.jpg)
Visual communication
Eye contact, copying of expressionsAt 6 weeks, 8 weeks at the latest
Social smile, active interaction at the age of 12 weeks.
![Page 3: Assessment of visual functioning with special reference to infants](https://reader036.vdocument.in/reader036/viewer/2022062517/56812cd8550346895d91988b/html5/thumbnails/3.jpg)
Communication – at 8 weeks
3
![Page 4: Assessment of visual functioning with special reference to infants](https://reader036.vdocument.in/reader036/viewer/2022062517/56812cd8550346895d91988b/html5/thumbnails/4.jpg)
Eye contact and social smile
Normal eye contact at 6 weeks, social smile at 12 weeks.
Insufficient accommodationMirror neuron system
![Page 5: Assessment of visual functioning with special reference to infants](https://reader036.vdocument.in/reader036/viewer/2022062517/56812cd8550346895d91988b/html5/thumbnails/5.jpg)
Eye contact and social smile
Insufficient accommodation
Near correction
![Page 6: Assessment of visual functioning with special reference to infants](https://reader036.vdocument.in/reader036/viewer/2022062517/56812cd8550346895d91988b/html5/thumbnails/6.jpg)
Recommended assessments
• Following functions should be assessed in all infants:
• eye contact and social smile (accommodation )• grating acuity as detection acuity• contrast sensitivity for communication
![Page 7: Assessment of visual functioning with special reference to infants](https://reader036.vdocument.in/reader036/viewer/2022062517/56812cd8550346895d91988b/html5/thumbnails/7.jpg)
Grating Acuity & Heidi Face as detection acuity & communcation distance
Detection tests
Preferential looking
2.5%
![Page 8: Assessment of visual functioning with special reference to infants](https://reader036.vdocument.in/reader036/viewer/2022062517/56812cd8550346895d91988b/html5/thumbnails/8.jpg)
Hiding Heidilow contrast pictures for assessment of communication distance
Nordic faces and shadows of facial expressions are at low contrast.
![Page 9: Assessment of visual functioning with special reference to infants](https://reader036.vdocument.in/reader036/viewer/2022062517/56812cd8550346895d91988b/html5/thumbnails/9.jpg)
Recommended assessments
• Following functions should be assessed in all infants:
• eye contact and social smile• grating acuity as detection acuity • contrast sensitivity for communication• refractive errors, confrontation visual fields• ocular motor functions, including accommodation • observation of hand functions and copying them
![Page 10: Assessment of visual functioning with special reference to infants](https://reader036.vdocument.in/reader036/viewer/2022062517/56812cd8550346895d91988b/html5/thumbnails/10.jpg)
10
10
Infant artists’
Mirror neuron functions
Photo: Päivi Setälä
At the Art MuseumPori, Finland
![Page 11: Assessment of visual functioning with special reference to infants](https://reader036.vdocument.in/reader036/viewer/2022062517/56812cd8550346895d91988b/html5/thumbnails/11.jpg)
Recommended assessments
• Following functions should be assessed in all infants : • eye contact and social smile• grating acuity as detection acuity • contrast sensitivity for communication• refractive errors, confrontation visual fields• ocular motor functions, including accommodation • observation of hand functions and copying them
• face recognition of family members
![Page 12: Assessment of visual functioning with special reference to infants](https://reader036.vdocument.in/reader036/viewer/2022062517/56812cd8550346895d91988b/html5/thumbnails/12.jpg)
Infants at risk
12
Accommodation inHypotonic infants
![Page 13: Assessment of visual functioning with special reference to infants](https://reader036.vdocument.in/reader036/viewer/2022062517/56812cd8550346895d91988b/html5/thumbnails/13.jpg)
Compensating accommodation
13
![Page 14: Assessment of visual functioning with special reference to infants](https://reader036.vdocument.in/reader036/viewer/2022062517/56812cd8550346895d91988b/html5/thumbnails/14.jpg)
Watching simple picturestwo years later
14
![Page 15: Assessment of visual functioning with special reference to infants](https://reader036.vdocument.in/reader036/viewer/2022062517/56812cd8550346895d91988b/html5/thumbnails/15.jpg)
Infants at risk Delayed motor development in premaurely born infants
15Combined effect of visual and motor disorder delays the development of an infant in all functional areas.
![Page 16: Assessment of visual functioning with special reference to infants](https://reader036.vdocument.in/reader036/viewer/2022062517/56812cd8550346895d91988b/html5/thumbnails/16.jpg)
Constricted visual field
16
Large illuminated ball used by child’s own therapist.
![Page 17: Assessment of visual functioning with special reference to infants](https://reader036.vdocument.in/reader036/viewer/2022062517/56812cd8550346895d91988b/html5/thumbnails/17.jpg)
Fixation
17
Brief fixation on the middlesize picture of face
![Page 18: Assessment of visual functioning with special reference to infants](https://reader036.vdocument.in/reader036/viewer/2022062517/56812cd8550346895d91988b/html5/thumbnails/18.jpg)
Accommodationdifficult to measure when the infant does not look at
18
Mother’s face and voiceused as the target.
![Page 19: Assessment of visual functioning with special reference to infants](https://reader036.vdocument.in/reader036/viewer/2022062517/56812cd8550346895d91988b/html5/thumbnails/19.jpg)
Eye contactwhen reading lenses give a clear image on the retina
19
![Page 20: Assessment of visual functioning with special reference to infants](https://reader036.vdocument.in/reader036/viewer/2022062517/56812cd8550346895d91988b/html5/thumbnails/20.jpg)
Reaction during assessment of her brothernoises and body language show disapproval
20
![Page 21: Assessment of visual functioning with special reference to infants](https://reader036.vdocument.in/reader036/viewer/2022062517/56812cd8550346895d91988b/html5/thumbnails/21.jpg)
Visually activeten weeks later: improved visual and motor functions
21RE: GrA less than in LE > trainingas a part of physiotherapy
![Page 22: Assessment of visual functioning with special reference to infants](https://reader036.vdocument.in/reader036/viewer/2022062517/56812cd8550346895d91988b/html5/thumbnails/22.jpg)
Infants at risk
• Infants with delays/difficulties in communcation• All hypotonic infants: brain damage, Down• All infants with Down syndrome, refraction• Infants with strabismus• All deaf and hard of hearing infants• All infants with syndrome based risk of VI
![Page 23: Assessment of visual functioning with special reference to infants](https://reader036.vdocument.in/reader036/viewer/2022062517/56812cd8550346895d91988b/html5/thumbnails/23.jpg)
Early Intervention
should start EARLY
It should start during the assessment.
![Page 24: Assessment of visual functioning with special reference to infants](https://reader036.vdocument.in/reader036/viewer/2022062517/56812cd8550346895d91988b/html5/thumbnails/24.jpg)
Assessment of visual functioning with special reference to infants
Lea Hyvärinen, MD, PhD, FAAP
Professor h.c., Rehabilitation Sciences, University of Dortmund
Senior Lecturer, Developmental Neuropsychology, Univ. of Helsinki
www.lea-test.fiTampa USF October 2011
![Page 25: Assessment of visual functioning with special reference to infants](https://reader036.vdocument.in/reader036/viewer/2022062517/56812cd8550346895d91988b/html5/thumbnails/25.jpg)
Accommodationeye contact and social smile
Weak accommodation can be compensated with ”reading glasses.”