Figure 1.

(A) Goldmann visual field analysis; although peripheral limits as tested with object V4 of Goldmann remained normal, only test object I4 was perceived more centrally, indicating loss of retinal sensitivity. On day 3 of therapy, the patient could already perceive test object I2 and I3 illustrating partial normalisation, while, unexpectedly, peripheral limits were more constricted. From day 36 Goldmann visual fields were considered to be normal. (B) Goldmann-Weekers dark adaptometry (DA) showed considerable decrease in sensitivity before repletion therapy; day 1 is at presentation, before treatment; considerable improvement seen on day 3, with complete normalisation on day 10.