The temporal interval between flashing lights that is required to perceive nonsimultaneity decreases as the refractive error increases from 0 to +2 diopters. The interval then remains constant with further increases to 3 and 4 diopters. The results are discussed in terms of the relative increase of transient to sustained visual channels and of the increase in apparent movement.

Intracardiac thrombosis is a rare manifestation of cardiac involvement in Behçet's disease, and it may be mistaken for a heart tumor. In this letter we present the case of a patient diagnosed with Behçet's disease who was incidentally found to have a mass in the right atrium suspicious of a cardiac tumor. Nevertheless, cardiac magnetic resonance showed a cardiac thrombus. Immunosuppressive ther...

With interest we read the article by Kim et al. about four pediatric patients with hepato-cerebral mitochondrial depletion-syndrome(MDS) due toMPV17-mutations who all died from hepatic failure a fewmonths after birth [1]. We have the following comments and concerns. Nephrocalcinosis is an uncommon phenotypic manifestation of MPV17-mutations. Only in a single patient with MDS due to a RRMB2 muta...