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Comparison of intradevice repeatability of thickness measurements for macular area in the eyes with normal and various retinal diseases using SS-OCT and SD-OCT
The investigators studied the intradevice repeatability of thickness measurements for total retina, retinal nerve fiber layer (RNFL) and ganglion cell-inner plexiform (GC-IPL) layers of macular area in the eyes with normal and various retinal diseases using SS-OCT and SD-OCT and compared the repeatability between two devices.
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| Label | Type | Description | Intervention Names |
|---|---|---|---|
| Normal group | Healthy subjects without any ocular problems Repeat exams of OCT device (SD and SS-OCT) |
| |
| Retinal diseases group | Patients with various macular diseases Repeat exams of OCT device (SD and SS-OCT) |
|
| Name | Type | Description | Arm Group Labels | Other Names |
|---|---|---|---|---|
| Repeat exams of OCT device | Device | All 2 consecutive OCT examinations were performed by 1 experienced technician, in the order of SD-OCT and SS-OCT. The interval was 10 minutes between examinations by each OCT devices |
| Measure | Description | Time Frame |
|---|---|---|
| To compare repeatability between swept-source optical coherence tomography (SS-OCT) and spectral-domain OCT (SD-OCT) devices for the measurement of retinal thickness in various retinal diseases. | Comparison of Intraclass correlation coefficient (ICC) and coefficients of variability (CV) between devices | Each device was examined twice consecutively within one minutes. After one OCT device exam, another OCT exam was performed immediately. The interval between test devices did not exceed 5 minutes. |
| Measure | Description | Time Frame |
|---|---|---|
| To compare repeatability according to the degree of macular thickness | To compare the repeatability of retinal thickness according to central macular thickness in eyes with retinal diseases | Each device was examined twice consecutively within one minutes. After one OCT device exam, another OCT exam was performed immediately. The interval between test devices did not exceed 5 minutes. |
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Inclusion Criteria:
Exclusion Criteria:
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normal control : 36 eyes of 36 subjects
retinal disease group: 78 eyes of 78 patients
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| Name | Affiliation | Role |
|---|---|---|
| Mincheol Seong, MD, PhD | Hanyang University | Study Chair |
| Facility | Status | City | State | ZIP | Country | Contacts |
|---|---|---|---|---|---|---|
| Hanyang University Guri Hospital | Guri-si | Gyeonggi-do | 11923 | South Korea |
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