Binocular Single Vision

Dr.Ricky Barot DOMS,(DNB Cont.)Dr.Vinay Prasad MBBS, (DNB Cont.)

BACKGROUND

Anatomical Aspects

Physiological Aspects

ANATOMICAL ASPECTS

Pre natal period

Just before birth

Post natal period

FACTORS AFFECTING

Genetic & Molecular control

Onset of electrical activity

Receptive fields

Chemical mediators & Neuromodulatory transmitters

Genetic & Molecular control

Normal structure development

Peripheral retinal development

Contour integration

ELECTRICAL ACTIVITY

Purpose

LTP & LTD

Cells that fire together wire together

Two distinct pathways

RECEPTIVE FIELDS

Further refinement under influence of visual experience

Group of cells behave in a similar manner

On – center & Off – center cells

Receptive fields in cortex

Chemical mediators & Neuromodulatory Transmitters

Controls circular receptive fields of retinal cells

Influence the visual cortex via modulatory pathways from other sites within cerebral cortex

Critical period, Plastic period & Amblyopia

Correlation with visual function development

Visual Acuity

Contrast Sensitivity

Orientation Specificity & Motion Selectivity

Stereopsis : pre & post – stereoptic phase

PHYSIOLOGICAL ASPECTS Visual Directions & Horoscope

Binocular Fusion

Dichoptic Stimulation

Stereopsis

Depth perception

Integration of Motor & sensory systems

Visual Directions & Horoscope

Visual space vs. Physical space

Visual Directions

Corresponding points & NRC

Horopter

Physiological Diplopia

Binocular Fusion

Sensory Fusion

Panum’s Area

Fixation Disparity

Theories

Dichoptic Stimulation

Depth with Fusion

Depth with Diplopia

Diplopia without Depth

Binocular Rivalry & Suppression

Stereopsis

Physiological basis

Stereopsis & Fusion

Stereoscopic Acuity

Neurophysiologic Basis

Depth perception

Stereopsis

Non stereoscopic binocular clues

Monocular clues

Influence of Accommodation & Convergence

Integration of Motor & sensory systems

Functions of motor system

Function of sensory system

GRADES OF BSV

Simultaneous Macular Perception

Fusion

Stereopsis

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