Optic nerve ultrasound measurement in multiple sclerosis

Abstract

we were really involved by the Candeliere Merlicco at al. article concerning the use of the transorbital ultrasonography for measuring optic nerve atrophy in multiple sclerosis.

We would like to congratulate the authors for their interesting work, but we would like to comment the methods they used to measure the optic nerve (ON) diameter.

The authors used the B scan technique, an examination broadly utilized to diagnose ocular diseases,^2‐7 that unfortunately is not sensitive enough in measuring orbital structures, as it is affected by the so‐called blooming effect.

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