One. Stimulus Field Size Effects in Colour Vision.- 1. Y. Ohta (Invited Paper): Tokyo, Japan Change in color vision for prototype anomaloscope with a visual field of 2 to 20 .- 2. W. Jaeger, H. Krastel and G. Marat: Heidelberg, West Germany Large field spectral matches in dichromats.- 3. A. Iivanainen and J. Rovamo: Helsinki, Finland The effect of stimulus size on the detection of chromatic deviations from white and yellow across the human visual field.- 4. V.J. Honson and S.J. Dain: Kensington, Australia The effects of size and analysis method on the performance of the Farnsworth-Munsell D-15 test.- 5. K. Knoblauch, M. Fischer, N. Robillard, I.S. Grunwald and E. Faye: New York, NY, U.S.A. The effect of test element size on performance of the D-15 in age-related maculopathy and congenital color deficiency.- 6. H. Plendl, W. Paulus and S. Krafczyk: Munich, West Germany Effect of field size on the colour evoked potentials and the electroretinogram.- 7. J.J. Kulikowski, I.J. Murray and M.H.A. Russell: Manchester, U.K. Effect of stimulus size on chromatic and achromatic VEPs.- Two. New Colour Vision Tests, Examination Methods and Data Analyses.- 8. J.D. Mollon, S. Astell and J.P. Reffin: Cambridge, U.K. A minimalist test of colour vision.- 9. J.P. Reffin, S. Astell and J.D. Mollon: Cambridge, U.K. Trials of a computer-controlled colour vision test that preserves the advantages of pseudoisochromatic plates.- 10. B. Drum, C. Sternheim and M. Severns: Baltimore, College Park and Gaithersburg, MD, U.S.A. Anomaloscope plate test field trial: comparisons with four other tests of congenital red-green color vision deficiencies.- 11. J.K. Hovis and H. Dolman: Waterloo, Ontario, Canada. Estimating chromatic thresholds.- 12. G. Derefeldt, C-E. Hedin, K-O. Skoog and G. Verriest: Linkoping, Sweden and Ghent, Belgium A VDU colour vision test for congenital colour vision deficiencies.- 13. G. Verriest, F.E. Sucs and A. Uvijls: Ghent and Brussels, Belgium Spectral and flicker sensitivity functions with a fibre optic non-Maxwellian view system.- 14. R. Fletcher; London, U.K. and Kongsberg Inginor Hogskole, Norway A modified lantern test.- 15. M. Aguilar, M.L.F. de Mattiello and D. Ribas: Buenos Aires, Argentina Fusion chromatic and temporal frequencies in normal and anomalous observers.- 16. M.L.F. de Mattiello and A. Gonella: Buenos Aires, Argentina A clinical evaluation of the lightness and contrast vision tests.- 17. S.J. Dain and A.J. Adams: Berkeley, CA, U.S.A. and New South Wales, Australia Evaluation of the Adams desaturated D-15 test with congenital color vision defects.- 18. H. Krastel, H. Gehrung, K. Dax and K. Rohrschneider: Heidelberg, West Germany Clinical application of the Heidelberg anomaloscope.- 19. M. Pelizzone, J. Sommerhalder, A. Roth and D. Hermes: Geneva, Switzerland Automated Rayleigh and Moreland matches on a computer-controlled anomaloscope.- 20. M. Marre, E. Marre and T. Eckardt: Dresden, East Germany Evaluation of the SPP-II test.- 21. J.A.M. van Everdingen, V.C. Smith and J. Pokorny: Chicago, IL, U.S.A. Sensitivity of tritan screening tests as evaluated in normals at reduced levels of illumination.- 22. V.C. Smith, J.A.M. van Everdingen and J. Pokorny; Chicago, IL, U.S.A. Sensitivity of arrangement tests as evaluated in normals at reduced levels of illumination.- 23. S.J. Dain, M.O. Scase and D.H. Foster: Keele, Staffordshire, U.K. An assessment of the 'mesopization' model of blue-yellow colour vision defects.- 24. P. Grutzner, H. Krastel and C. Seybold: Darmstadt and Heidelberg, West Germany Validation of pseudo-isochromatic plates by chromatic acuity.- 25. K. Hamano, T. Motohashi, H. Kudo and Y. Ohta: Tokyo, Japan Study of congenital color defects using the D&H color rule.- 26. K. Kitahara, T. Okabe, K. Mihara and A. Kandatsu: Tokyo, Japan Theoretical patterns of the panel D-15 test in congenital red-green dichromats.- 27. T. Okabe, A. Kandatsu, J. Noji and K. Kitahara: Tokyo, Japan The use of the panel D-15 test in estimating the convergence point for deuteranopia.- 28. T. Steinschneider and O. Polotsky: Jerusalem, Israel Combined computer program for the Farnsworth D-15 and Roth 28-hue tests.- 29. M. Marre, E. Marre, P. Mierdel and T. Eckardt: Dresden, East Germany Computerized assessment of the FM 100-hue test in acquired color vision defects.- 30. O. Lagerlof: Stockholm, Sweden The Farnsworth-Munsell 100-hue test in clinical practice.- 31. F. Zisman, K.R. Zisman and M.G. Harris: Berkeley and Hercules, CA, U.S.A. Utility and transmissions of therapeutically tinted contact lenses.- 32. G. de'Gennaro, A. Senese and M. Vitale: Napoli, Italy Orientation and selection of professions using computerized colour tests.- 33. J. Leid: Pau, France Clinical perspectives in colour.- Three. Normal Colour Vision.- 34. J. Birch, A. Young and S. David: London, U.K. Variations in normal trichromatism.- 35. RA. Humanski and S.K. Shevell; Chicago, IL, U.S.A. Factors contributing to differences in Rayleigh matches of normal trichromats.- 36. W. Verdon and G. Haegerstrom-Portnoy: Berkeley, CA. U.S.A. Chromatic properties of dichoptic Westheimer functions.- 37. M.L.F. de Mattiello and J. Perez Carpinell: Buenos Aires, Argentina and Valencia, Spain Retinal and cortical sensitivity to different chromatic stimuli.- 38. S.L. Buck, K. Bonnelle, P. Zohn and R. Knight: Seattle, WA, U.S.A. Size and sensitivity scaling of ?4 and ?5.- 39. T. Knottenberg and H. Scheibner: Dusseldorf, West Germany Approaching the Abney effect within linear opponent-color vision.- 40. H. Krastel, W. Jaeger, S. Zimmermann, B. Heckmann and M. Krystek: Heidelberg and Braunschweig, West Germany Systematics of human photopic spectral sensitivity.- 41. M.A. Crognale, G.H. Jacobs and J. Neitz: Santa Barbara, CA, U.S.A. Flicker photometric ERG measurements of short wavelength sensitive cones.- 42. J.D. Moreland, E. Torczynski and R. Tripathi: Bradford, U.K. and Chicago, IL, U.S.A. Rayleigh and Moreland matches in the ageing eye.- 43. A. Roth, M. Pelizzone, J. Sommerhalder, D. Hermes and F. Simona: Geneva, Switzerland The two equation method. III. Results in normal subjects above 50 years of age. Correlation with lens opacity.- 44. P. Gouras: New York, NY, U.S.A. Modeling chromatic contrast detectors in the primate visual system.- Four. Congenital Colour Vision Deficiencies.- 45. M. Muller, C.R. Cavonius and J.D. Mollon: Dortmund, West Germany and Cambridge, U.K. Constructing the color space of the deuteranomalous observer.- 46. T. Kremer and H. Scheibner: Dusseldorf, West Germany Deuteranomalous opponent-colour vision including the Abney effect.- 47. M. Neitz, J. Neitz and G.H. Jacobs: Santa Barbara, CA, U.S.A. Relationship between cone pigments and genes in deuteranomalous subjects.- 48. G.H. Jacobs and J. Neitz: Santa Barbara, CA, U.S.A. Deuteranope spectral sensitivity measured with ERG flicker photometry.- 49. F. Vienot and A. Chiron: Paris, France Mesopic luminous matches of protanopic and deuteranopic observers.- 50. A. Roth, F. Paccolat, D. Hermes, M. Pelizzone, D. Klein, R. Feil and J.-L. Mandel: Geneva, Switzerland and Strasbourg, France Five generations of a protan+deutan family: genealogy, color vision and genomic DNA.- 51. P.G. Gallo and M.P. Nardella: Padua, Italy Colour vision deficiencies in secondary school students in Italy.- 52. M.O. Scase, D.H. Foster, W.P. Honan and J.R. Heron: Keele and Stoke-on-Trent, Staffordshire, U.K. A case of unilateral blue colour vision loss..- 53. L.N. Went, J.A. Oosterhuis and M. van Schooneveld: Leiden and Amsterdam, The Netherlands A large family with a dominant cone dystrophy revealing prodromally a severe tritan defect.- 54. W.H. Swanson: Dallas, TX, U.S.A. Heterochromatic modulation photometry in heterozygous carriers of congenital color defects.- 55. M. Fossarello, S. Solarino, I. Zucca, M. Piscitelli, M. Piu, A. Piras and A. Serra: Cagliari, Italy Colour discrimination in congenital stationary night blindness.- 56. A. Serra, M. Fossarello, I. Zucca, G. Puxeddu, C.M. Dessy, A. Pitzus and C. Palmas: Cagliari, Italy Genetic study of Sardinian families with G6PD deficiency and colour vision defects.- Five. Acquired Colour Vision Deficiencies: Retinitis Pigmentosa and Diabetes Mellitus.- 57. G. Verriest, F.E. Sues and A. Uvijls: Ghent and Brussels, Belgium Spectral and flicker sensitivity functions in retinitis pigmentosa with a fibre optic non-Maxwellian view system.- 58. A. Serra, I. Zucca, M. D'Atri, M. Piscitelli, M. Piu, A. Mulas and G. Puxeddu: Cagliari, Italy Visual function implications of tinted glasses in patients affected by retinitis pigmentosa.- 59. M. Fossarello, I. Zucca, M. Piscitelli, S. Mulas, A. Mulas, C.M. Dessy, A. Campurra and A. Serra: Cagliari, Italy The effect of hyperbaric oxygen therapy on colour discrimination and fluorescein angiography in edematous maculopathies.- 60. J. Birch, A.E. Ariffin and A. Kurtz: London, U.K. Colour vision screening for the detection of diabetic retinopathy.- 61. R. Fletcher: London, U.K. Colour perception warning for self-testing diabetics.- 62. O. Lagerlof: Stockholm, Sweden Color vision in diabetics.- 63. M. Mantyjarvi: Kuopio, Finland Nagel anomaloscope findings in diabetic school children.- 64. A.E. Ariffin, J. Birch, P.J. Polkinghorne and C.R. Canning: London, U.K. Colour vision changes following pan-retinal photocoagulation with the dye laser.- Six. Acquired Colour Vision Deficiencies: Optic Nerve Disorders.- 65. A.J. Adams, C.A. Johnson and R.A. Lewis: Berkeley and Davis, CA, U.S.A. S cone pathway sensitivity loss in ocular hypertension and early glaucoma has nerve fiber bundle pattern.- 66. T. Steinschneider and U. Ticho: Jerusalem, Israel Correlation between results of 28-hue test and loss of visual field in glaucoma (preliminary results).- 67. F. Zwas, D.H. Shin and P. McKinnon: Detroit, MI, U.S.A. Early spectral sensitivity changes in unilateral glaucoma.- 68. K. Oyama, K. Kitahara, G. Hisato and R. Tamaki: Tokyo, Japan The characteristics of color vision defects in optic nerve injuries.- 69. W. Paulus and H. Plendl: Munich, West Germany Colour vision defects in optic nerve compression tested with the D&H colour rule.- 70. M.H.A. Russell, I.J. Murray, R.A. Metcalfe and J.J. Kulikowski: Manchester, U.K. Chromatic and achromatic function in multiple sclerosis; VEPs and psychophysics.- Seven. Acquired Colour Vision Deficiencies: Miscellaneous.- 71. H. Zwick, D.O. Robbins, S.B. Reynolds, DJ. Lund, S.T. Schuschereba, R.C. Long and M. Nawim: San Francisco, CA, and Delaware, OH, U.S.A. Effects of small spot foveal exposure on spatial vision and ERG spectral sensitivity.- 72. A. Bayer, E. Zrenner and W. Paulus: Munich and Tubingen, West Germany Colour vision deficiencies induced by the anticonvulsants Phenytoin and carbamazepine.- 73. G. Staurenghi, A. Porta, A. Autelitano, N. Orzalesi, P. Padovese, D. Brancaccio, V. Scaioli, F. Panzica and G. Avanzini: Milan and Como, Italy Ocular effects of desferrioxamine infusion in uraemic patients on chronic haemodialysis.- 74. H. Zwick, B. Burri and E.S. Beatrice: San Francisco, CA, U.S.A. Vitamin A supplementation effects on photopic and scotopic visual function and measures of vitamin A status.- 75. I. Zucca, N. Aste, M. Piscitelli, M. D'Atri, G. Martini, M. Pau and A. Serra: Cagliari, Italy Some remarks on colour discrimination in psoriasis.- 76. R. Fusco, G. Ambrosio, A. Magli and G. Nieto: Naples, Italy Colour vision and contrast sensitivity in chronic progressive external ophthalmoplegia.- Author index.