Report of a novel mutation in CRB1 in a Lebanese family presenting retinal dystrophy.

Purpose: To identify the genetic basis of a recessive inheritance form of retinal dystrophy (RD) in a Lebanese family.

Materials And Methods: Clinical data were recorded for five patients of the 14 family members. Genetic linkage was carried out using Affymetrix 250 K Nspl SNP array followed by sequencing.

[Superior oblique myokymia secondary to neurovascular compression].

In a patient with superior oblique myokymia, a contact is visualised between the right trochlear nerve and a vascular structure by high resolution thin slices magnetic resonance images coupled to angio-MR. A similar contact is not visualised on the left side. This suggests that the neuro-vascular contact is the cause of this superior oblique myokymia and offers the possibility of neuro-surgical decompression if necessary.