Retinal Nerve Fiber Layer Thickness Measurement on Parapapillary Atrophy With the Cirrus High-Definition (HD) Optical Coherence Tomography (OCT)
- Conditions
- Glaucoma
- Registration Number
- NCT00742196
- Lead Sponsor
- Yonsei University
- Brief Summary
Retinal nerve fiber layer (RNFL) thickness measurement on the parapapillary atrophy is incorrect. Because a new spectral domain OCT, the Cirrus HD OCT, uses a movable circle to analyze the RNFL thickness, we may suggest a new analysis strategy for the parapapillary atrophy.
- Detailed Description
Recently, the retinal nerve fiber layer (RNFL) thickness measurement using the optical coherence tomography (OCT) becomes very useful to detect such a glaucomatous damage. However, there are some difficult cases including parapapillary atrophy to perform this measurement. Because the RNFL thickness is so sensitive to the position of measurement and the measurement of RNFL thickness on parapapillary atrophy is incorrect, it is difficult to determine exact RNFL thickness in patients with a large parapapillary atrophy. In the present study, we want to find the proper method to analyze the RNFL thickness on parapapillary atrophy. The previous OCT used a fixed circle to measure the RNFL thickness, but the new spectral domain OCT, the Cirrus HD OCT, uses a movable one. Therefore, we may suggest a new analysis strategy for the parapapillary atrophy.
Recruitment & Eligibility
- Status
- UNKNOWN
- Sex
- All
- Target Recruitment
- 30
- Qualified OCT images (signal strength > or = 8)
- Previous intraocular surgery history
- Media opacity
- DM
Study & Design
- Study Type
- OBSERVATIONAL
- Study Design
- Not specified
- Primary Outcome Measures
Name Time Method Retinal nerve fiber layer thickness when the OCT images are taking Size of parapapillary atrophy when the OCT images are taking
- Secondary Outcome Measures
Name Time Method
Trial Locations
- Locations (1)
Gong Je Seong
🇰🇷Seoul, Korea, Republic of