Color Vision Defects in Ocular Hypertension and Glaucoma

Blue-yellow colour vision in an onchocercal area of northern Nigeria

“…9 While the confidence intervals (Table 2) overlap between the relative odds for failing the test in individuals with optic nerve atrophy compared with those with glaucoma, there is a consistent trend for higher odds for failure in those with glaucoma. A possible explanation for the difference in relative odds for failing the tritan test between optic nerve disease and glaucoma could be that the nature of optic nerve damage differs between the two diseases, glaucoma preferentially causing tritan defects 9…”

“…Acquired tritan defects have been demonstrated in optic atrophy,8 glaucoma and ocular hypertension,9 and retinal degenerations including chorioretinitis,10 age related macular degeneration, and diabetic retinopathy 11. Colour vision tests are rarely available in rural African clinics.…”

Blue-yellow colour vision in an onchocercal area of northern Nigeria

“…9 While the confidence intervals (Table 2) overlap between the relative odds for failing the test in individuals with optic nerve atrophy compared with those with glaucoma, there is a consistent trend for higher odds for failure in those with glaucoma. A possible explanation for the difference in relative odds for failing the tritan test between optic nerve disease and glaucoma could be that the nature of optic nerve damage differs between the two diseases, glaucoma preferentially causing tritan defects 9…”

“…Acquired tritan defects have been demonstrated in optic atrophy,8 glaucoma and ocular hypertension,9 and retinal degenerations including chorioretinitis,10 age related macular degeneration, and diabetic retinopathy 11. Colour vision tests are rarely available in rural African clinics.…”

The relationship between colour vision defects and visual field tests in glaucoma

“…However, contrary to clinical experience subtle colour-vision defects (CVD) are commonly detected in glaucoma in a research setting, generally non-speci c or in the blue-yellow axis. [2][3][4][5][6][7] In studies of ocular hypertensive patients and early glaucoma, CVD occurred in 40% (as compared to 15% of controls) 8, 9 and were associated with high intraocular pressure (IOP) and indicative of future visual eld loss. 3,[9][10][11][12][13] The correlation between these CVD and the visual eld is not strong, so there are patients with normal visual elds in early glaucoma who have CVD, and there are patients with advanced visual eld loss from glaucoma who have normal colour vision.…”

Blue-yellow colour vision in an onchocercal area of northern Nigeria

“…9 While the confidence intervals (Table 2) overlap between the relative odds for failing the test in individuals with optic nerve atrophy compared with those with glaucoma, there is a consistent trend for higher odds for failure in those with glaucoma. A possible explanation for the difference in relative odds for failing the tritan test between optic nerve disease and glaucoma could be that the nature of optic nerve damage differs between the two diseases, glaucoma preferentially causing tritan defects 9…”

“…Acquired tritan defects have been demonstrated in optic atrophy,8 glaucoma and ocular hypertension,9 and retinal degenerations including chorioretinitis,10 age related macular degeneration, and diabetic retinopathy 11. Colour vision tests are rarely available in rural African clinics.…”

The relationship between colour vision defects and visual field tests in glaucoma

“…However, contrary to clinical experience subtle colour-vision defects (CVD) are commonly detected in glaucoma in a research setting, generally non-speci c or in the blue-yellow axis. [2][3][4][5][6][7] In studies of ocular hypertensive patients and early glaucoma, CVD occurred in 40% (as compared to 15% of controls) 8, 9 and were associated with high intraocular pressure (IOP) and indicative of future visual eld loss. 3,[9][10][11][12][13] The correlation between these CVD and the visual eld is not strong, so there are patients with normal visual elds in early glaucoma who have CVD, and there are patients with advanced visual eld loss from glaucoma who have normal colour vision.…”

Blue-yellow colour vision in an onchocercal area of northern Nigeria

“…9 While the confidence intervals (Table 2) overlap between the relative odds for failing the test in individuals with optic nerve atrophy compared with those with glaucoma, there is a consistent trend for higher odds for failure in those with glaucoma. A possible explanation for the difference in relative odds for failing the tritan test between optic nerve disease and glaucoma could be that the nature of optic nerve damage differs between the two diseases, glaucoma preferentially causing tritan defects 9…”

“…Acquired tritan defects have been demonstrated in optic atrophy,8 glaucoma and ocular hypertension,9 and retinal degenerations including chorioretinitis,10 age related macular degeneration, and diabetic retinopathy 11. Colour vision tests are rarely available in rural African clinics.…”

The relationship between colour vision defects and visual field tests in glaucoma

“…However, contrary to clinical experience subtle colour-vision defects (CVD) are commonly detected in glaucoma in a research setting, generally non-speci c or in the blue-yellow axis. [2][3][4][5][6][7] In studies of ocular hypertensive patients and early glaucoma, CVD occurred in 40% (as compared to 15% of controls) 8, 9 and were associated with high intraocular pressure (IOP) and indicative of future visual eld loss. 3,[9][10][11][12][13] The correlation between these CVD and the visual eld is not strong, so there are patients with normal visual elds in early glaucoma who have CVD, and there are patients with advanced visual eld loss from glaucoma who have normal colour vision.…”