Development of vision in infants and young children
Related Experiment Video
Updated: Aug 7, 2026
09:47
A Method to Quantify Visual Information Processing in Children Using Eye Tracking
Published on: July 9, 2016
1Department of Ophthalmology, Children's National Medical Center, Washington, DC.
Pediatric Clinics of North America
|August 1, 1993
Insights
Infant vision quality improves alongside brain development. Key tests track this visual acuity refinement in preverbal children, with varying pros and cons discussed.
Area of Science:
- Developmental neuroscience
- Ophthalmology
- Pediatric vision science
Background:
- Infant visual development is intrinsically linked to brain maturation.
- Assessing vision in preverbal infants presents unique challenges.
- Understanding visual development is crucial for early detection of potential issues.
Purpose of the Study:
- To explore the relationship between behavioral improvements in infant vision and underlying neurodevelopment.
- To review and compare various methods for assessing visual acuity in preverbal children.
- To discuss the advantages and disadvantages of different visual assessment techniques.
Main Methods:
- Tracking progressive refinement of visual acuity using established tests.
- Employing methods such as fixation and following, optokinetic nystagmus, preferential viewing, and pattern-evoked visual responses.
- Analyzing the differences and applicability of each evaluation technique.
Main Results:
- Behavioral improvements in infant vision quality correlate with neuroanatomic and neurophysiologic brain development.
- Specific tests effectively track the progressive refinement of visual acuity.
- Each assessment method possesses distinct strengths and weaknesses for evaluating infant vision.
Conclusions:
- The development of infant vision is a dynamic process mirroring brain growth.
- A range of specialized tests allows for the objective assessment of visual acuity in preverbal infants.
- Selecting the appropriate visual assessment method depends on specific clinical considerations and the child's developmental stage.
Abstract:
Behavioral improvement in the quality of infant vision parallels neuroanatomic and neurophysiologic brain development. Progressive refinement of acuity can be tracked by means of tests that employ fixation and following, optokinetic nystagmus, preferential viewing, and pattern-evoked visual responses. These methods of evaluating vision in the preverbal child differ from each other in several respects; their relative advantages and disadvantages are discussed.
Related Concept Videos
01:24Vision
Vision is the result of light being detected and transduced into neural signals by the retina of the eye. This information is then further analyzed and interpreted by the brain. First, light enters the front of the eye and is focused by the cornea and lens onto the retina—a thin sheet of neural tissue lining the back of the eye. Because of refraction through the convex lens of the eye, images are projected onto the retina upside-down and reversed.
01:20Anatomy of the Eyeball
The eye is a spherical, hollow structure composed of three tissue layers. The outer layer — the fibrous tunic, comprises the sclera — a white structure — and the cornea, which is transparent. The sclera encompasses some of the ocular surface, most of which is not visible. However, the 'white of the eye' is distinctively visible in humans compared to other species. The cornea, a clear covering at the front of the eye, enables light penetration. The eye's middle layer, the vascular tunic,...
01:22Photoreceptors and Visual Pathways
At the molecular level, visual signals trigger transformations in photopigment molecules, resulting in changes in the photoreceptor cell's membrane potential. The photon's energy level is denoted by its wavelength, with each specific wavelength of visible light associated with a distinct color. The spectral range of visible light, classified as electromagnetic radiation, spans from 380 to 720 nm. Electromagnetic radiation wavelengths exceeding 720 nm fall under the infrared category, whereas...
01:15Depth Perception and Spatial Vision
Depth perception is the ability to perceive objects three-dimensionally. It relies on two types of cues: binocular and monocular. Binocular cues depend on the combination of images from both eyes and how the eyes work together. Since the eyes are in slightly different positions, each eye captures a slightly different image. This disparity between images, known as binocular disparity, helps the brain interpret depth. When the brain compares these images, it determines the distance to an object.
01:14Piaget's Stage 1 of Cognitive Development
The sensorimotor stage, the initial phase of Jean Piaget's theory of cognitive development, spans the first two years of a child's life. During this period, infants actively engage with their surroundings, building cognitive awareness through direct interaction with the world. This interaction is primarily based on sensory perception and motor actions, allowing infants to gradually understand basic physical properties and predict how objects interact within their environment.
Exploration...
Exploration...
01:21The Nativist Approach
The nativist approach to infant cognitive development proposes that infants are born with inherent knowledge structures that allow them to interpret the world almost immediately. This perspective contrasts with earlier developmental theories, such as those proposed by Jean Piaget, which emphasized a more gradual acquisition of cognitive abilities through interaction with the environment. One key concept in this approach is object permanence — the understanding that objects continue to exist...