Ocular myotonia.
D000293:Adolescent; D000368:Aged; D003937:Diagnosis, Differential; D005128:Eye Diseases / Q000175:diagnosis* / Q000235:genetics; D005260:Female; D006801:Humans; D009222:Myotonia / Q000175:diagnosis*; D009224:Myotonia Congenita / Q000235:genetics; D009223:Myotonic Dystrophy; D010375:Pedigree