Pediatric Ophthalmology Glossary
100 terms total — 24 showing — Last updated 15 Sep 2026
ametropia
Any refractive error of the eye where light fails to focus properly on the retina.
pediatric cataract
Lens opacification occurring in infancy or childhood, requiring urgent evaluation and potential surgery to prevent depri...
PEDIG
Pediatric Eye Disease Investigator Group, the primary research network for pediatric ophthalmology studies.
Pendular Nystagmus
Involuntary eye movements characterized by equal velocity oscillations in both directions, resembling a pendulum.
photoscreening
Automated vision screening technology that uses flash photography to detect refractive errors and eye alignment problems...
Preferential Looking Test
A behavioral assessment technique using striped patterns to evaluate visual acuity in preverbal children.
primary deviation
The measured strabismus angle when the normal (preferred) eye is fixating and the paretic or amblyopic eye is deviated.
prism diopter
A unit of measurement for ocular deviation, where one prism diopter deviates light by 1 cm at a distance of 1 meter.
pseudophakia
The condition of having an artificial intraocular lens implanted in place of the natural crystalline lens, typically fol...
pseudostrabismus
Appearance of eye misalignment when the eyes are actually properly aligned.
ptosis
Drooping of the upper eyelid that may obstruct vision in children.
Refractive Accommodative Esotropia
Inward eye turn that occurs when uncorrected hyperopia triggers excessive accommodation and convergence.
refractive surgery consultation
Specialized evaluation to determine candidacy for vision correction surgery in pediatric patients with high refractive e...
retinoblastoma
Most common primary intraocular malignancy in children, typically presenting before age 5 with leukocoria or strabismus.
ROP
Retinopathy of prematurity, a potentially blinding eye disorder affecting premature infants.
secondary deviation
The measured strabismus angle when the paretic or amblyopic eye is forced to fixate and the normal eye assumes the devia...
sensory exotropia
Outward eye deviation that develops secondary to poor vision in one eye, disrupting normal binocular fusion.
sensory fusion
The neurological process by which the brain combines slightly disparate images from both eyes into a single, three-dimen...
strabismus
Misalignment of the eyes where they do not look in the same direction simultaneously.
superior oblique palsy
Weakness or paralysis of the superior oblique muscle causing vertical diplopia and compensatory head positioning.
suppression scotoma
An area of visual field loss caused by cortical inhibition of input from one eye to prevent diplopia in strabismus.
Teller Acuity Cards
A preferential looking test using grating stimuli to assess visual acuity in infants and non-verbal children.
V-pattern strabismus
A form of incomitant strabismus where the eyes diverge more in upgaze than in downgaze, creating a V-shaped pattern.
vergence
Disconjugate eye movements where the eyes move in opposite directions to maintain single binocular vision.
version
Conjugate eye movements where both eyes move in the same direction simultaneously.