Abstract：
:We determined normative values for the visual sensitivity threshold in 118 children aged 5-8 years, using automated static perimetry (Octopus 2000R, program 32). In addition, 17 normal adults were tested. The children first underwent a familiarization procedure. One week later, quantitative examination was performed according to a specially designed schedule divided into three phases. For each of the 76 points tested, mean thresholds and standard deviations were calculated as a function of age. In contrast to previous studies, sensitivity difference between adults and children over the central 30 degrees of the visual field emerged only for the youngest age groups (5- and 6-year olds). Both the response rate in false-negative trials, and values of a within-subject threshold variability index, suggested that 5- and 6-year-olds' higher thresholds were inflated by non physiological factors, such as vigilance and cognitive processes. For these ages, the data reported here should therefore be considered as an approximation of the upper level of the thresholds. In contrast, our results for 7- and 8 year-old children provided reliable normative values for light sensitivity across the visual field.
journal_name
Vision Resjournal_title
Vision researchauthors
Tschopp C,Safran AB,Viviani P,Reicherts M,Bullinger A,Mermoud Cdoi
10.1016/s0042-6989(97)00369-6subject
Has Abstractpub_date
1998-07-01 00:00:00pages
2211-8issue
14eissn
0042-6989issn
1878-5646pii
S0042-6989(97)00369-6journal_volume
38pub_type
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