Abstract
For evaluating vision in infants and young children, optokinetic nystagmus (OKN), preferential looking (PL), and pattern reversal visual evoked response (PVER) are now available. Each method has its own advantages and disadvantages, as has been extensively reported elsewhere (1), and their use has resulted in a much clearer understanding of the overall pattern of visual development during childhood.
© 1990 Optical Society of America
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