RT Journal Article SR Electronic T1 Congenital idiopathic nystagmus in identical twins. JF British Journal of Ophthalmology JO Br J Ophthalmol FD BMJ Publishing Group Ltd. SP 693 OP 695 DO 10.1136/bjo.67.10.693 VO 67 IS 10 A1 Abadi, R V A1 Dickinson, C M A1 Lomas, M S A1 Ackerley, R YR 1983 UL http://bjo.bmj.com/content/67/10/693.abstract AB Using an infrared recording system we examined the nystagmus waveforms of a pair of monozygotic twin girls and found them to be dissimilar. It is proposed that in view of the common mode of inheritance the differences are a result of environmental influences.