Nystagmus 1, congenital, X-linked

A form of nystagmus, a condition defined as conjugated, spontaneous and involuntary ocular oscillations that appear at birth or during the first three months of life. Other associated features may include mildly decreased visual acuity, strabismus, astigmatism, and occasionally head nodding.

Albinism ocular 1

Form of albinism affecting only the eye. Pigment of the hair and skin is normal or only slightly diluted. Eyes may be severely affected with photophobia and reduced visual acuity. Nystagmus or strabismus are often associated. The irides and fundus are depigmented.

Spinocerebellar ataxia 27A

A form of spinocerebellar ataxia, a clinically and genetically heterogeneous group of cerebellar disorders. Patients show progressive incoordination of gait and often poor coordination of hands, speech and eye movements, due to degeneration of the cerebellum with variable involvement of the brainstem and spinal cord. SCA27A is an autosomal dominant, slowly progressive form characterized by gait disturbances, ataxia with tremor, dysarthria, orofacial dyskinesia, gaze-evoked nystagmus, and learning disabilities. There is significant variability, and patients show various combinations of neurologic features.

Neurooculorenal syndrome

An autosomal recessive syndrome characterized by variable clinical features including congenital renal anomalies, neurodevelopmental defects, intellectual impairment, cardiac defects, and ocular anomalies. Some affected individuals present in utero with renal agenesis and structural brain abnormalities incompatible with life.