Abstract
We have examined 227 normal subjects, aged from the first to the eighth decade, using SPP 2. We have also examined 100 cases among the outpatients of our clinic, using SPP 2 and the AO-HRR plates. The following results were obtained: (1) the left numeral ‘2’ on the third plate of SPP 2 could not be read by 87.2% of the normal subjects: therefore a misreading of this numeral has no diagnostic value; (2) the other 19 numerals in the SPP 2 were read correctly by 93.8% of the normal subjects: thus one or more abnormal responses for these 19 numerals pointed to acquired color defect; (3) color defects were detected in 20 cases (30.3%) out of 66 cases with some ocular disease which showed corrected visual acuity more than 1.0; (4) SPP 2 might be superior to AO-HRR plates in the detection of color vision defects.
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References
Ichikawa, H., Hukami, K. and Tanabe, S. Standard Pseudoisochromatic Plates part 2 for acquired color defects. Igaku-shoin, Tokyo, New York (1983).
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© 1987 Martinus Nijhoff Publishers, Dordrecht
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Ichikawa, K., Ichikawa, H., Tanabe, S. (1987). Detection of Acquired Color Vision Defects by Standard Pseudoisochromatic Plates Part 2. In: Verriest, G. (eds) Colour Vision Deficiencies VIII. Documenta Ophthalmologica Proceedings Series, vol 46. Springer, Dordrecht. https://doi.org/10.1007/978-94-009-4275-2_19
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DOI: https://doi.org/10.1007/978-94-009-4275-2_19
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