The muscle problems can disrupt skeletal development, leading to an abnormally curved lower back (lordosis), a rounded upper back that also curves to the side (kyphoscoliosis), high-arched feet (pes cavus), or an inward- and upward-turning foot (clubfoot [icdlist.com]

Clinical Features Annular corneal opacity Anaemia Progressive renal disease with proteinuria Corneal opacities only Normal renal function Large yellow-orange tonsils Dense central corneal opacity Relapsing and remitting course of neuropathy Asymptomatic [wikidoc.org]

Carlson LA (1982) Fish eye disease: a new familial condition with massive corneal opacities and dyslipoproteinaemia. Eur J Clin Invest 12: 41–53 PubMed CrossRef Google Scholar 37. [link.springer.com]

People with abetalipoproteinemia may also have other eye problems, including involuntary eye movements (nystagmus), eyes that do not look in the same direction (strabismus), and weakness of the external muscles of the eye (ophthalmoplegia).Individuals [icdlist.com]

They can also experience a loss of certain reflexes, impaired speech (dysarthria), tremors or other involuntary movements (motor tics), a loss of sensation in the extremities (peripheral neuropathy), or muscle weakness. [icdlist.com]