Effect of Stimulus Size on Binocular Summation within the Binocular Visual Field.
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Accession number;01A0273754
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| Title;Effect of Stimulus Size on Binocular Summation within the Binocular Visual Field. |
| Author;
WAKAYAMA AKEMI
(Kinki Univ., Sch. of Med.)
MATSUMOTO CHOTA
(Kinki Univ., Sch. of Med.)
IWAGAKI ATSUSHI
(Kinsyukai Hanwa Sumiyoshi Sogo Byoin)
MATSUMOTO FUMIKO
(Kinki Univ., School of Medicine, Sakai Hospital, JPN)
OMURE KAZUYO
(Kinki Univ., Sch. of Med.)
SHIMOMURA YOSHIKAZU
(Kinki Univ., Sch. of Med.)
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Journal Title;Journal of Japanese Ophthalmological Society
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Journal Code:Z0666A
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ISSN:0029-0203
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VOL.105;NO.2;PAGE.111-118(2001)
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| Figure&Table&Reference;FIG.7, REF.24 |
| Pub. Country;Japan |
| Language;Japanese |
| Abstract;Purpose: To study the influence of stimulus sizes on binocular summation using the modified Octopus 201 combined with a space synoptophore. Methods: Four normal subjects, aged 21 to 26 were tested. Using the SARGON program, we designed a new program to test 37 points in the central 6.DEG. visual field. Sensitivity of the central 6.DEG. visual field under monocular and binocular conditions was measured while the fusion patterns were displayed on the space synoptophore. The visual fields were measured at stimulus sizes 1, 3, and 5. Results: The visual sensitivity under binocular conditions was higher than under monocular conditions for all the stimulus sizes. Binocular summation for stimullls size 1 was present in a flat form, for stimulus size 3 in a convex form , and for stimulus size 5 in a concave form in the central 6.DEG. visual f field. Conclusion: Binocular summation differed in stimulus size and retinal eccelltricity. Binocular summation for stimulus size 3 increased in the fovea and it increased for stimulus size 5 in the peripheral area in the central 6.DEG. visual field. (author abst.) |
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