Visual assessment in children

1. Visual assessment in children pediatric
ophtalmology (prevention by premature diagnosis)
• Age Groups:
• Infants <1 y
• Toddlers 1- 4 years
• Children : 5 – 14 years
• Adolescents: 15- 17 years
• Adults > 18 years

2. Visual Assessment in Children pay
attention:look for pediatric ophtalmoloist
• Pupil size, ligth reaction
• Ocular Motility
• Red Reflex
• Child Observation

3. Contrast sensitivity
• Sensibility to perceive sligth colour changes

4. Vision Assessment prevent by premature
diagnosis
• Optometry:Distance visual assessment
• Refratometry
• Ophtalmoscopy
• Optical Choerence Tomography

5. Factors that affect visual acuity
• Refractive errors, glaucoma and retinopathy
• Pupil Size
• Adaptation of the eye
• Illumination

6. Visual Assessment (tests)
• Distance Visual Acuity ( snellen chart)
• Near Vision

7. Distance Visual Acuity

8. Standart Test Distances
• Distance Visual Acuity: 6m or 20ft is
equivalent to optical infinity
• Near Vision : 40 cm.

9. Snellen Chart

10. Conversion scales (LogMar to Snellen)

11. Visual Scales snellen and (MAR) minimum angle
resolution

12. Distance vision
• Two points can be visible when they are
separated by a angle of 1 minute in nodal
point of the eye.

13. Normal fundus of rigth eye (OCT)

14. Normal fundus of left eye.(OCT)

15. Thank You