Abstract
AIMS--To investigate how young children develop the ability to undergo a visual field evaluation using regular automated perimetry. METHODS--The study included 42 normal girls aged 5, 6, 7, and 8 years. Twelve locations in the 15 degrees eccentricity were tested in one eye, using an Octopus 2000R perimeter with a two level strategy. False positive and false negative catch trials were presented. The examination was performed three times in succession. Before the examination procedure, a specially designed programme was conducted for progressive familiarisation. RESULTS--During the familiarisation procedure, it was found that all of the 5-year-old children, seven of the 6-year-old children, and three of the 7-year-old children were unable to perform immediately, and correctly, the instructions given during the familiarisation phase; these children took from 30 seconds to 3 minutes to comply with the examiner's requests. With the exception of one 5-year-old child, all tested subjects completed the planned procedure. The mean proportion of false negative answers in catch trials was 1.6%. The mean proportion of false positive answers was 12.2%. The quadratic dependency on age suggested by the averages was not significant (F(3,116) = 0.88; p = 0.45). Detection stimulus improved with age, as shown by the fact that probability of perceiving dim stimulus increases significantly (F(3,116) = 12.68; p < 0.0001). CONCLUSION--Children did remarkably well regarding both the duration of the examination and the reliability of the answers. A preliminary familiarisation phase with a specially designed adaptation programme was found to be mandatory with children aged 7 or under. To our knowledge, this is the first time that such an investigation has been performed.
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Selected References
These references are in PubMed. This may not be the complete list of references from this article.
- Heijl A., Lindgren G., Olsson J. Normal variability of static perimetric threshold values across the central visual field. Arch Ophthalmol. 1987 Nov;105(11):1544–1549. doi: 10.1001/archopht.1987.01060110090039. [DOI] [PubMed] [Google Scholar]
- Mutlukan E., Damato B. E. Computerised perimetry with moving and steady fixation in children. Eye (Lond) 1993;7(Pt 4):554–561. doi: 10.1038/eye.1993.121. [DOI] [PubMed] [Google Scholar]
- Quinn G. E., Fea A. M., Minguini N. Visual fields in 4- to 10-year-old children using Goldmann and double-arc perimeters. J Pediatr Ophthalmol Strabismus. 1991 Nov-Dec;28(6):314–319. doi: 10.3928/0191-3913-19911101-07. [DOI] [PubMed] [Google Scholar]