Abstract
Whether or not unilateral occipital damage produces sparing of central vision, namely macular sparing, is controversial. We tested two subjects with left occipital lesions by means of fundus perimetry combined with fundus image analysis. This method made it possible to measure the distance of the stimulus projected on the retina from the foveal centre defined as the centre of the foveal reflex. The results indicated that macular sparing, if it exists, must be less than 0.4° wide. Two of the four eyes during the stimulus presentation often but not always showed eccentric fixation of a small magnitude, whose mean was less than 0.6° from the foveal centre in the right hemiretina.
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References
Bunt AH, Minckler DS, Johanson GW (1977) Demonstration of bilateral projection to the central retina of the monkey with horseradish peroxidase neuronography. J Comp Neurol 171:619–630
Cox DR (1970) The analysis of binary data. Chapman and Hall, London
Fendrich R, Gazzaniga MS (1989) Evidence of foveal splitting in a commissurotomy patient. Neuropsychologia 27:273–281
Fukuda Y, Sawai H, Watanabe M, Wakakuwa K, Morigiwa K (1989) Nasotemporal overlap of crossed and uncrossed retinal ganglion cell projections in the Japanese monkey (Macaca fuscata). J Neurosci 9:2353–2373
Gellerman LW (1933) Chance orders of alternating stimuli in visual discrimination experiments. J Genet Psychol 42:206–208
Halstead WC, Walker AE, Bucy PC (1940) Sparing and non sparing of “macular” vision associated with occipital lobectomy in man. Arch Ophthalmol 24:948–966
Horton JC, Hoyt WF (1991) The representation of the visual field in human striate cortex. Arch Ophthalmol 109:816–824
Huber A (1970) Homonymous hemianopia after removal of one occipital lobe. Excerpta Med Int Congr Ser 222:1333–1343
natomi A (1979) A simple fundus perimetry with fundus camera. Doc Ophthalmol Proc Ser 19:359–362
Joynt RJ, Honch GW, Rubin AJ, Trudell RG (1985) Occipital lobe syndromes. In: Vinken PJ, Bruyn GW, Klawans HL, Frederiks JAM (ed) Handbook of clinical neurology, vol 45: Clinical neuropsychology. Elsevier, Amsterdam, pp 49–62
Koemer F, Teuber HL (1973) Visual field defects after missile injuries to the geniculo-striate pathway in man. Exp Brain Res 18:88–113
Leventhal AG, Ault SJ, Vitek DJ (1988) The nasotemporal division in primate retina: the neural bases of macular sparing and splitting. Science 240:66–67
Miller NR (1982) Walsh and Hoyt's Clinical neuro-ophthalmology, 4th edn, vol 1. Williams & Wilkins, Baltimore, pp 145–147
Ohta Y, Miyamoto T, Harasawa K (1979) Experimental fundus photo perimeter and its application. Doe Ophthalmol Proc Ser 19:351–358
Orth DH, Fine BS, Fagman W, Quirk TC (1977) Clarification of foveomacular nomenclature and grid for quantitation of macular disorders. Trans Am Acad Ophthalmol Otol 83:506–514
Pratt WK (1978) Digital image processing. Wiley, New York, pp 429–432
Sperry RW (1968) Apposition of visual half fields after section of neocortical commissures. Anat Rec 160:498–499
Verhoeff FH (1943) A new answer to the question of macular sparing. Arch Ophthalmol 30:421–425
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Sugishita, M., Hemmi, I., Sakuma, I. et al. The problem of macular sparing after unilateral occipital lesions. J Neurol 241, 1–9 (1993). https://doi.org/10.1007/BF00870664
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DOI: https://doi.org/10.1007/BF00870664