Post on 14-Jul-2015
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
Visual Assessment in Children pay
attention:look for pediatric ophtalmoloist
• Pupil size, ligth reaction
• Ocular Motility
• Red Reflex
• Child Observation
Contrast sensitivity
• Sensibility to perceive sligth colour changes
Vision Assessment prevent by premature
diagnosis
• Optometry:Distance visual assessment
• Refratometry
• Ophtalmoscopy
• Optical Choerence Tomography
Factors that affect visual acuity
• Refractive errors, glaucoma and retinopathy
• Pupil Size
• Adaptation of the eye
• Illumination
Visual Assessment (tests)
• Distance Visual Acuity ( snellen chart)
• Near Vision
Distance Visual Acuity
Standart Test Distances
• Distance Visual Acuity: 6m or 20ft isequivalent to optical infinity
• Near Vision : 40 cm.
Snellen Chart
Conversion scales (LogMar to Snellen)
Visual Scales snellen and (MAR) minimum angle
resolution
Distance vision
• Two points can be visible when they are separated by a angle of 1 minute in nodal point of the eye.
Normal fundus of rigth eye (OCT)
Normal fundus of left eye.(OCT)
Thank You