Ignite Creation Date:
2024-05-05 @ 11:21 AM
Last Modification Date:
2024-10-26 @ 9:02 AM
Study NCT ID:
NCT00001346
Status:
COMPLETED
Last Update Posted:
2008-03-04
First Post:
1999-11-03
Brief Title:
Diabetic Retinopathy and Visual Function Study
Sponsor:
National Eye Institute NEI
Organization:
National Institutes of Health Clinical Center CC
Study Overview
Official Title:
Diabetic Retinopathy and Visual Function Study
Status:
COMPLETED
Status Verified Date:
2000-02
Last Known Status:
None
Delayed Posting:
No
If Stopped, Why?:
Not Stopped
Has Expanded Access:
False
If Expanded Access, NCT#:
N/A
Has Expanded Access, NCT# Status:
N/A
Acronym:
None
Brief Summary:
The purpose of this study is to evaluate possible mechanisms of central visual loss in patients with diabetes mellitus The visual loss of interest to be investigated is that associated with macular edema prior to and following laser photocoagulation treatment and that associated with panretinal photocoagulation The evaluation will be performed with psychophysical testing ie static perimetry and contrast sensitivity function Of particular interest the mechanisms of visual loss associated with macular edema prior to and following laser photocoagulation will be further investigated Photoreceptor-mediated visual loss will be assessed by measurements of the Stiles-Crawford effect Visual loss mediated by post-receptoral retinal changes will be assessed by measuring the Westheimer spatial desensitizationsensitization effect
Detailed Description:
The purpose of this study is to evaluate possible mechanisms of central visual loss in patients with diabetes mellitus The visual loss of interest to be investigated is that associated with macular edema prior to and following laser photocoagulation treatment and that associated with panretinal photocoagulation The evaluation will be performed with psychophysical testing ie static perimetry and contrast sensitivity function Of particular interest the mechanisms of visual loss associated with macular edema prior to and following laser photocoagulation will be further investigated Photoreceptor-mediated visual loss will be assessed by measurements of the Stiles-Crawford effect Visual loss mediated by post-receptoral retinal changes will be assessed by measuring the Westheimer spatial desensitizationsensitization effect
Study Oversight
Has Oversight DMC:
None
Is a FDA Regulated Drug?:
None
Is a FDA Regulated Device?:
None
Is an Unapproved Device?:
None
Is a PPSD?:
None
Is a US Export?:
None
Is an FDA AA801 Violation?:
None
Secondary IDs
| Secondary ID | Type | Domain | Link |
|---|---|---|---|
| 93-EI-0037 | None | None | None |