[Albinism: Clinical presentation, diagnostics and visual function]

Area of Science:

• Ophthalmology
• Genetics
• Medical Imaging

Background:

• Albinism involves reduced or absent melanin production, affecting skin, hair, and eyes.
• It presents with oculocutaneous, ocular, or syndromic forms, often diagnosed in early childhood.
• Ophthalmological manifestations include nystagmus, visual impairment, and specific retinal and iris findings.

Purpose of the Study:

• To describe the clinical phenotype and ophthalmological manifestations of albinism.
• To highlight the utility of advanced imaging techniques in studying the visual pathway in albinism.
• To explore the plasticity of the human visual system in the context of albinism.

Main Methods:

• Review of clinical features and ophthalmological findings in albinism.
• Utilizing visually evoked potentials to assess visual pathway abnormalities.
• Employing advanced imaging like optical coherence tomography and magnetic resonance imaging.

Main Results:

• Common findings include iris transillumination, foveal hypoplasia, retinal hypopigmentation, strabismus, refractive errors, and amblyopia.
• Atypical chiasmal decussation of ganglion cell axons is observable.
• Imaging techniques provide detailed insights into visual pathway anatomy.

Conclusions:

• Albinism presents with a spectrum of visual impairments and characteristic ocular findings.
• Advanced imaging is crucial for understanding the structural and functional aspects of the visual system in albinism.
• The study underscores the visual system's plasticity despite albinism-related abnormalities.