Pseudopapilledema in Cockayne syndrome

Area of Science:

• Ophthalmology
• Genetics
• Pediatrics

Background:

• Cockayne syndrome is a rare genetic disorder.
• Pseudopapilledema is a condition that mimics papilledema.
• Ocular manifestations in Cockayne syndrome are not fully understood.

Observation:

• Two siblings with genetically confirmed Cockayne syndrome presented with pseudopapilledema.
• Both siblings exhibited enophthalmos and hyperopia.
• Magnetic resonance (MR) imaging revealed globe retrodisplacement and axial foreshortening.

Findings:

• MR imaging showed posterior scleral flattening and optic papilla protrusion into the vitreous.
• A structural mechanism involving globe retrodisplacement indenting the posterior sclera by optic nerves was identified.
• This anatomical aberration is proposed as a cause of pseudopapilledema in Cockayne syndrome.

Implications:

• The findings suggest a novel mechanism for pseudopapilledema in Cockayne syndrome.
• This anatomical change may also contribute to the development of hyperopia.
• Understanding this mechanism can aid in managing ocular complications in Cockayne syndrome.