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A Fiorentini, M Pirchio, D Spinelli; Scotopic contrast sensitivity in infants evaluated by evoked potentials.. Invest. Ophthalmol. Vis. Sci. 1980;19(8):950-955.
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© ARVO (1962-2015); The Authors (2016-present)
The contrast sensitivity function of infants 2 1/2 to 6 months old has been obtained at mean luminances of 6 and 0.06 cd/m2 by recording visual evoked potentials in response to simusoidal gratings of various spatial frequencies alternating in phase at 8 Hz. The scotopic contrast sensitivity develops earlier than the photopic contrast sensitivity, reaching values very close to those of the adult between 4 and 5 months of age. This suggests that mechanisms responsible for adaptive changes of receptive field organization from night to day vision are not yet mature at this age.
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