Skip to main content
← Back to Pediatric Ophthalmology

Pediatric Ophthalmology Glossary

100 terms total — 24 showing — Last updated 15 Sep 2026

ametropia

Intermediate Technical IVT

Any refractive error of the eye where light fails to focus properly on the retina.

Showing 73–96 of 100

pediatric cataract

Professional Technical IVT

Lens opacification occurring in infancy or childhood, requiring urgent evaluation and potential surgery to prevent depri...

Technical Term Full entry →

PEDIG

Professional Technical

Pediatric Eye Disease Investigator Group, the primary research network for pediatric ophthalmology studies.

Technical Term Full entry →

Pendular Nystagmus

Advanced Technical IVT

Involuntary eye movements characterized by equal velocity oscillations in both directions, resembling a pendulum.

Technical Term Full entry →

photoscreening

Intermediate Technical IVT

Automated vision screening technology that uses flash photography to detect refractive errors and eye alignment problems...

Diagnostic Test Full entry →

Preferential Looking Test

Professional Technical IVT

A behavioral assessment technique using striped patterns to evaluate visual acuity in preverbal children.

Technical Term Full entry →

primary deviation

Intermediate Technical IVT

The measured strabismus angle when the normal (preferred) eye is fixating and the paretic or amblyopic eye is deviated.

Technical Term Full entry →

prism diopter

Intermediate Technical IVT

A unit of measurement for ocular deviation, where one prism diopter deviates light by 1 cm at a distance of 1 meter.

Technical Term Full entry →

pseudophakia

Intermediate Technical IVT

The condition of having an artificial intraocular lens implanted in place of the natural crystalline lens, typically fol...

Technical Term Full entry →

pseudostrabismus

Intermediate Technical IVT

Appearance of eye misalignment when the eyes are actually properly aligned.

Technical Term Full entry →

ptosis

Intermediate Technical IVT

Drooping of the upper eyelid that may obstruct vision in children.

Technical Term Full entry →

Inward eye turn that occurs when uncorrected hyperopia triggers excessive accommodation and convergence.

Technical Term Full entry →

Specialized evaluation to determine candidacy for vision correction surgery in pediatric patients with high refractive e...

Document Type Full entry →

retinoblastoma

Professional Technical IVT

Most common primary intraocular malignancy in children, typically presenting before age 5 with leukocoria or strabismus.

Clinical Term Full entry →

ROP

Professional Technical IVT

Retinopathy of prematurity, a potentially blinding eye disorder affecting premature infants.

Abbreviation Full entry →

secondary deviation

Advanced Technical IVT

The measured strabismus angle when the paretic or amblyopic eye is forced to fixate and the normal eye assumes the devia...

Technical Term Full entry →

sensory exotropia

Intermediate Technical IVT

Outward eye deviation that develops secondary to poor vision in one eye, disrupting normal binocular fusion.

Technical Term Full entry →

sensory fusion

Intermediate Technical IVT

The neurological process by which the brain combines slightly disparate images from both eyes into a single, three-dimen...

Technical Term Full entry →

strabismus

Intermediate Technical IVT

Misalignment of the eyes where they do not look in the same direction simultaneously.

Technical Term Full entry →

superior oblique palsy

Advanced Technical IVT

Weakness or paralysis of the superior oblique muscle causing vertical diplopia and compensatory head positioning.

Technical Term Full entry →

suppression scotoma

Intermediate Technical IVT

An area of visual field loss caused by cortical inhibition of input from one eye to prevent diplopia in strabismus.

Technical Term Full entry →

Teller Acuity Cards

Intermediate Technical IVT

A preferential looking test using grating stimuli to assess visual acuity in infants and non-verbal children.

Technical Term Full entry →

V-pattern strabismus

Professional Technical IVT

A form of incomitant strabismus where the eyes diverge more in upgaze than in downgaze, creating a V-shaped pattern.

Technical Term Full entry →

vergence

Intermediate Technical IVT

Disconjugate eye movements where the eyes move in opposite directions to maintain single binocular vision.

Technical Term Full entry →

version

Intermediate Technical IVT

Conjugate eye movements where both eyes move in the same direction simultaneously.

Technical Term Full entry →
Showing 73–96 of 100

Editors from these organisations have used our services since 1998

Reuters BBC Oxford University Press Penguin Random House Springer Microsoft Suncor Energy United Nations Fisher Investments IBM The Home Depot KODAK CHEVRON