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| Name | Class |
|---|---|
| Swiss Federal Institute of Technology | OTHER |
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Manually and automatically by mashing learning algorithm optic disc will be evaluated (planimetry).
Cross-Over non-randomized Case-Series. Arm 1 (Manual segmentation): Manually marking of the boundaries of the optic disc and it's excavation on color photographs of the optic disc. Arm 2 (Automated segmentation): Automatic detection of the boundaries of the optic disc and it's excavation. Calculation of cup size, size of excavation, cup-to-disc ratio, and rim area. Comparison of all parameters of both arms and computing of agreement.
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| Label | Type | Description | Intervention Names |
|---|---|---|---|
| patients with open angle glaucoma | patients with open angle glaucoma who had their optic discs routinely documented by fundus photography. Optic disc photographs will be analyzied by manual planimetry or automated planimetry. |
|
| Name | Type | Description | Arm Group Labels | Other Names |
|---|---|---|---|---|
| manual planimetry | Other | Manually marking of the boundaries of the optic disc and it's excavation on color photographs of the optic disc. |
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| Measure | Description | Time Frame |
|---|---|---|
| agreement measured by kappa statistics | agreement measured by kappa statistics | Baseline visit in the outpatient department |
| Measure | Description | Time Frame |
|---|---|---|
| Cup size | Cup size | Baseline visit in the outpatient department |
| size of excavation | size of excavation | Baseline visit in the outpatient department |
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Inclusion Criteria:
Exclusion Criteria:
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patients with a diagnosis of open-angle glaucoma
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| Name | Affiliation | Role |
|---|---|---|
| Jens Funk, MD, PhD | University of Zurich | Principal Investigator |
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| PubMed Identifier | Type | Citation | Retractions |
|---|---|---|---|
| 12557021 | Background | Jonas JB. [Glaucoma diagnosis of the optic disc using photography and planimetry]. Ophthalmologe. 2003 Jan;100(1):13-20. doi: 10.1007/s00347-002-0752-4. German. |
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| ID | Term |
|---|---|
| D005902 | Glaucoma, Open-Angle |
| ID | Term |
|---|---|
| D005901 | Glaucoma |
| D009798 | Ocular Hypertension |
| D005128 | Eye Diseases |
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| automated planimetry | Other | Automatic detection of the boundaries of the optic disc and it's excavation on color photographs of the optic disc. |
|
| vertical cup to disc ratio | vertical cup to disc ratio | Baseline visit in the outpatient department |
| rim area | rim area | Baseline visit in the outpatient department |