Related Experiment Videos
Atypical pigment dispersion syndrome in a child
Michael A Grassi1, Wallace L M Alward, Randall L Verdick
1Department of Ophthalmology and Visual Sciences, University of Iowa, Iowa City, Iowa 52242, USA.
Purpose:
To describe the features of atypical pigment dispersion in a child.
Design:
Observational case report.
Methods:
Retrospective chart review.
Results:
An 8-year-old boy presented with midperipheral iris transillumination defects, iris backbowing, heavy pigmentation of the trabecular meshwork, and elevated intraocular pressure. He also had several atypical features including emmetropia, mild posterior subcapsular cataract, small pupils, and peripheral anterior synechiae.
Conclusion:
Pigment dispersion in childhood is unusual and may have different features from those classically described in adults.
Related Concept Videos
Autism Spectrum Disorder
These core symptoms manifest differently among individuals, ranging from mild to severe. The disorder's complexity extends beyond its clinical presentation, encompassing a diverse range of biological, cognitive, and sociocultural influences.
Oppositional Defiant Disorder
Diagnostic Criteria and...
Photoreceptors and Visual Pathways
Pigmentation
Melanin occurs in two primary forms: eumelanin that provides black and brown pigment and pheomelanin that provides red color. Dark-skinned individuals produce more melanin than those with pale...
Skin Cancer
Basal Cell Carcinoma (BCC): BCC is the most common type of skin cancer, accounting for about 80% of cases. It typically develops in...
Pleiotropy