Making Sense of Contrast Sensitivity Testing

Are Contrast Sensitivity Functions Impaired in Insulin Dependent Diabetics Without Diabetic Retinopathy?

“…Similarly as in another studies (4,10) on CSFs in IDDM there were changes in spatial frequencies 6 c/deg and partially also 12 c/deg evaluated as the most sensitive ones among the investigated influences. This is in accordance with the fact that middle frequency targets require less contrast for detection (8).…”

“…Contrast sensitivity is a complex and multilevel modality characterizing only a part of the human's visual function. The use of the VCTS 6500 (Vistech Consultants, Inc) is a valid and specific psychophysical test of the neurosensorial visual function's changes (2,3,4,6,8).…”

Are Contrast Sensitivity Functions Impaired in Insulin Dependent Diabetics Without Diabetic Retinopathy?

“…Similarly as in another studies (4,10) on CSFs in IDDM there were changes in spatial frequencies 6 c/deg and partially also 12 c/deg evaluated as the most sensitive ones among the investigated influences. This is in accordance with the fact that middle frequency targets require less contrast for detection (8).…”

“…Contrast sensitivity is a complex and multilevel modality characterizing only a part of the human's visual function. The use of the VCTS 6500 (Vistech Consultants, Inc) is a valid and specific psychophysical test of the neurosensorial visual function's changes (2,3,4,6,8).…”

Comparison of preoperative 10-Hz visual evoked potentials to contrast sensitivity and visual acuity after cataract extraction

“…Contrast sensitivity is a more complete measure of visual function than Snellen visual acuity [1] and, as such, is often reported to be a more sensitive indicator of visual impairment than visual acuity [2]. Certainly, contrast sensitivity and recognition visual acuity, as measured with Snellen letters, measure separable visual functions.…”

VCTS chart evaluation as a screening test

“…Contrast sensitivity tests are, nevertheless, important adjunct investigational tools to detect 'hidden' visual loss in patients with good visual acuity, but their role in a clinical practice is not yet completely defined [20].…”

Are Contrast Sensitivity Functions Impaired in Insulin Dependent Diabetics Without Diabetic Retinopathy?

“…Similarly as in another studies (4,10) on CSFs in IDDM there were changes in spatial frequencies 6 c/deg and partially also 12 c/deg evaluated as the most sensitive ones among the investigated influences. This is in accordance with the fact that middle frequency targets require less contrast for detection (8).…”

“…Contrast sensitivity is a complex and multilevel modality characterizing only a part of the human's visual function. The use of the VCTS 6500 (Vistech Consultants, Inc) is a valid and specific psychophysical test of the neurosensorial visual function's changes (2,3,4,6,8).…”

Comparison of preoperative 10-Hz visual evoked potentials to contrast sensitivity and visual acuity after cataract extraction

“…Contrast sensitivity is a more complete measure of visual function than Snellen visual acuity [1] and, as such, is often reported to be a more sensitive indicator of visual impairment than visual acuity [2]. Certainly, contrast sensitivity and recognition visual acuity, as measured with Snellen letters, measure separable visual functions.…”

VCTS chart evaluation as a screening test

“…Contrast sensitivity tests are, nevertheless, important adjunct investigational tools to detect 'hidden' visual loss in patients with good visual acuity, but their role in a clinical practice is not yet completely defined [20].…”

Are Contrast Sensitivity Functions Impaired in Insulin Dependent Diabetics Without Diabetic Retinopathy?

“…Similarly as in another studies (4,10) on CSFs in IDDM there were changes in spatial frequencies 6 c/deg and partially also 12 c/deg evaluated as the most sensitive ones among the investigated influences. This is in accordance with the fact that middle frequency targets require less contrast for detection (8).…”

“…Contrast sensitivity is a complex and multilevel modality characterizing only a part of the human's visual function. The use of the VCTS 6500 (Vistech Consultants, Inc) is a valid and specific psychophysical test of the neurosensorial visual function's changes (2,3,4,6,8).…”

Comparison of preoperative 10-Hz visual evoked potentials to contrast sensitivity and visual acuity after cataract extraction

“…Contrast sensitivity is a more complete measure of visual function than Snellen visual acuity [1] and, as such, is often reported to be a more sensitive indicator of visual impairment than visual acuity [2]. Certainly, contrast sensitivity and recognition visual acuity, as measured with Snellen letters, measure separable visual functions.…”

VCTS chart evaluation as a screening test

“…Contrast sensitivity tests are, nevertheless, important adjunct investigational tools to detect 'hidden' visual loss in patients with good visual acuity, but their role in a clinical practice is not yet completely defined [20].…”