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