Healthy VolunteersiOCT-NormalsNCT04790890
Intraoperative Optical Coherence Tomography - Normals
An observational study of Healthy Volunteers, run by Vanderbilt University Medical Center at 1 site in United States.
Trial summary
Optical Coherence Tomography (OCT) image data will be evaluated for image quality and used to test post-processing algorithms to improve detection sensitivity for ophthalmic diseases. Read more about this study
- Who is it for?
- Ages 18 years and olderHealthy volunteers can take part
- Conditions the study is for
- Healthy Volunteers
- What is being tested?
- Optical coherence tomography (OCT)
- Type of treatment
- Medical device
- How many people
- 20 participants
- Where
- 1 siteUnited States
- Study dates
- 8 Mar 2021to 1 Jun 2028
- Phase
- Observational
- Are there results?
- Not yet: the study is under way
Key requirements
Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.
- Ages 18 years and older
- All sexes
- Healthy volunteers accepted
- Adult, Older adult
Study population: The subject population includes both males and females. All study subjects will be >18 years with no pre-existing ophthalmic conditions. All subjects included in the study will be informed of their rights and voluntary nature of the study. The study and informed consent form will be reviewed with subjects by the principal investigator (Dr. Yuankai Kenny Tao). Subjects will have the opportunity to read and review the consent form and ask any questions. Informed consent will be obtained for all subjects.
Who may be able to join
- Healthy adults (>18 years) with no pre-existing ophthalmic conditions
Who cannot join
- Children or adults unable to consent
- Any volunteers with history of ocular disease/injury
Trial locations and contacts
1 site in 1 country. Contact the study team or a site near you to ask about taking part.
About this study
Optical Coherence Tomography (OCT) image data will be evaluated for image quality and used to test post-processing algorithms to improve detection sensitivity for ophthalmic diseases.
Read the detailed description
Optical coherence tomography (OCT) is an established technology for ophthalmic diagnosis which can perform noncontact, noninvasive, real time, cross-sectional imaging of the retina and anterior eye. OCT has displaced ophthalmoscopy and stereo-photography as the gold-standard for clinical assessment and documentation of retinal microanatomy including thickness, cystoid structures, subretinal fluid and retinal traction. Despite these benefits, new technologies can still benefit patients including increasing the resolution, imaging speed, and contrast of OCT technologies. Since 2013, Dr. Tao's group has worked to develop and translate new ophthalmic imaging technologies.
The goal of this proposal is to develop novel OCT technology for improved diagnostic sensitivity in ophthalmology. Specifically, we will develop novel OCT imaging and image-processing methods to improve imaging speed and quality. Successful completion of this project will improve clinical diagnostics of ophthalmic diseases. Pre-clinical validation of system performance and ergonomics is a valuable step is clinical imaging technology development. The aim of this project is to performance system iterations on next-generation ophthalmic OCT imaging technologies over current-generation imaging systems on healthy adult volunteers prior to clinical translation. While system resolution, contrast, and speed can be (and will be) evaluated using calibration standards and phantoms, in vivo human imaging in healthy subjects is necessary to establish a baseline for system performance and image quality prior to clinical translation.
- Conditions
- Healthy Volunteers
- Being tested
- Optical coherence tomography (OCT)
- Keywords
- Optical Coherence Tomography, Ophthalmology, Retina
What participants receive
What participants receive. In a randomised study each person is assigned to one group by chance.
Optical coherence tomography (OCT)Device
Optical coherence tomography (OCT) is a non-invasive imaging test which uses light waves to take cross-section pictures of the retina.
What is being measured
The primary outcome is the main question the study is designed to answer.
Novel Ophthalmic Diagnostics using Optical Coherence Tomography
This study will develop novel OCT technology for improved diagnostic sensitivity in ophthalmology. Specifically, we will develop novel OCT imaging and image-processing methods to improve imaging speed and quality. Successful completion of this project will improve clinical diagnostics of ophthalmic diseases. Pre-clinical validation of system performance and ergonomics is a valuable step is clinical imaging technology development. We will evaluate imaging performance for system iterations on next-generation ophthalmic OCT imaging technologies over current-generation imaging systems on healthy adult volunteers prior to clinical translation. While system resolution, contrast, and speed can be (and will be) evaluated using calibration standards and phantoms, in vivo human imaging in healthy subjects is necessary to establish a baseline for system performance and image quality prior to clinical translation.
Measured: Subjects enrolled in the study may periodically be asked to participate in follow-up imaging during the duration of the study. These follow-up sessions will be optional through study completion, an average of 2 years.
Timeline
From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.
- First posted10 Mar 2021
- Study start8 Mar 2021
- Primary completion1 Jan 2028 (estimated)
- Study completion1 Jun 2028 (estimated)
Resources
- Official record on ClinicalTrials.govThe registry entry this page is built from, with its full change history.
- Publications (4)Papers the sponsor has linked to this study.
- Other trials for Healthy VolunteersStudies of the same condition, open and under way.
- More trials run by Vanderbilt University Medical CenterThe sponsor's other registered studies.
- What the trial phases meanHow a treatment moves from first tests in people to approval.
More details
For doctors and researchers: how the study is designed, who runs it, and its registry IDs.
Study design
- Study type
- Observational
- Observational model
- Cohort
- Time perspective
- Prospective
- Enrolment
- 20 participants (estimated)
Sponsor and investigators
- Lead sponsor
- Vanderbilt University Medical Center
- Sponsor type
- University, hospital or other
- Responsible party
- Principal investigator, Yuankai Tao, Vanderbilt University Medical Center
IDs, dates and publications
- ClinicalTrials.gov ID
- NCT04790890
- Sponsor's protocol ID
- 202230
- Acronym
- iOCT-Normals
- Status last verified
- Mar 2026
- First submitted
- 3 Mar 2021
- Last updated
- 10 Mar 2026
- Results posted
- No
- Data monitoring committee
- No
- FDA-regulated drug
- No
- FDA-regulated device
- No
- Individual data sharing
- No
Publications
LIA,
Fechtig DJ, Grajciar B, Schmoll T, Blatter C, Werkmeister RM, Drexler W, Leitgeb RA. Line-field parallel swept source MHz OCT for structural and functional retinal imaging. Biomed Opt Express. 2015 Feb 4;6(3):716-35. doi: 10.1364/BOE.6.000716. eCollection 2015 Mar 1.
PubMed 25798298Spahr H, Hillmann D, Hain C, Pfaffle C, Sudkamp H, Franke G, Huttmann G. Imaging pulse wave propagation in human retinal vessels using full-field swept-source optical coherence tomography. Opt Lett. 2015 Oct 15;40(20):4771-4. doi: 10.1364/OL.40.004771.
PubMed 26469616Yanagi Y, Inoue Y, Jang WD, Kadonosono K. A2e mediated phototoxic effects of endoilluminators. Br J Ophthalmol. 2006 Feb;90(2):229-32. doi: 10.1136/bjo.2005.076711.
PubMed 16424539
Study at a glance
From the registry record, last updated by the sponsor on 10 Mar 2026. Recruitment status is as the sponsor reported it: confirm with the study team.
- Official title
- Intraoperative Optical Coherence Tomography - Normals
- ClinicalTrials.gov ID
- NCT04790890
- Acronym / sponsor ID
- iOCT-Normals / 202230
- Conditions
- Healthy Volunteers
- Keywords
- Optical Coherence Tomography, Ophthalmology, Retina
- Study type
- Observational
- Recruitment status
- Enrolling by invitation
- Enrolment
- 20 participants (estimated)
- Lead sponsor
- Vanderbilt University Medical CenterUniversity, hospital or other
- Study start
- 8 Mar 2021 (actual)
- Primary completion
- 1 Jan 2028 (estimated)
- Study completion
- 1 Jun 2028 (estimated)
- First posted
- 10 Mar 2021 (actual)
- Results
- Not posted in the source record
Clinical summary
The research question as the sponsor registered it. This describes what the study plans to test, not what it found.
Optical Coherence Tomography (OCT) image data will be evaluated for image quality and used to test post-processing algorithms to improve detection sensitivity for ophthalmic diseases.
Detailed description
Optical coherence tomography (OCT) is an established technology for ophthalmic diagnosis which can perform noncontact, noninvasive, real time, cross-sectional imaging of the retina and anterior eye. OCT has displaced ophthalmoscopy and stereo-photography as the gold-standard for clinical assessment and documentation of retinal microanatomy including thickness, cystoid structures, subretinal fluid and retinal traction. Despite these benefits, new technologies can still benefit patients including increasing the resolution, imaging speed, and contrast of OCT technologies. Since 2013, Dr. Tao's group has worked to develop and translate new ophthalmic imaging technologies.
The goal of this proposal is to develop novel OCT technology for improved diagnostic sensitivity in ophthalmology. Specifically, we will develop novel OCT imaging and image-processing methods to improve imaging speed and quality. Successful completion of this project will improve clinical diagnostics of ophthalmic diseases. Pre-clinical validation of system performance and ergonomics is a valuable step is clinical imaging technology development. The aim of this project is to performance system iterations on next-generation ophthalmic OCT imaging technologies over current-generation imaging systems on healthy adult volunteers prior to clinical translation. While system resolution, contrast, and speed can be (and will be) evaluated using calibration standards and phantoms, in vivo human imaging in healthy subjects is necessary to establish a baseline for system performance and image quality prior to clinical translation.
Study design
- Observational model
- Cohort
- Time perspective
- Prospective
Who may qualify
- Ages
- 18 years and older
- Sex
- All
- Healthy volunteers
- Accepted
- Age groups
- Adult, Older adult
- Study population
- The subject population includes both males and females. All study subjects will be >18 years with no pre-existing ophthalmic conditions. All subjects included in the study will be informed of their rights and voluntary nature of the study. The study and informed consent form will be reviewed with subjects by the principal investigator (Dr. Yuankai Kenny Tao). Subjects will have the opportunity to read and review the consent form and ask any questions. Informed consent will be obtained for all subjects.
Key inclusion criteria (1 listed)
- Healthy adults (>18 years) with no pre-existing ophthalmic conditions
Key exclusion criteria (2 listed)
- Children or adults unable to consent
- Any volunteers with history of ocular disease/injury
Eligibility is decided by the study team after screening; this overview does not establish that a patient qualifies. Full inclusion and exclusion criteria.
Interventions
| Intervention | Type | Arms |
|---|---|---|
| Optical coherence tomography (OCT)Optical coherence tomography (OCT) is a non-invasive imaging test which uses light waves to take cross-section pictures of the retina. | Device | – |
Primary outcome
Novel Ophthalmic Diagnostics using Optical Coherence Tomography
Time frame: Subjects enrolled in the study may periodically be asked to participate in follow-up imaging during the duration of the study. These follow-up sessions will be optional through study completion, an average of 2 years.
This study will develop novel OCT technology for improved diagnostic sensitivity in ophthalmology. Specifically, we will develop novel OCT imaging and image-processing methods to improve imaging speed and quality. Successful completion of this project will improve clinical diagnostics of ophthalmic diseases. Pre-clinical validation of system performance and ergonomics is a valuable step is clinical imaging technology development. We will evaluate imaging performance for system iterations on next-generation ophthalmic OCT imaging technologies over current-generation imaging systems on healthy adult volunteers prior to clinical translation. While system resolution, contrast, and speed can be (and will be) evaluated using calibration standards and phantoms, in vivo human imaging in healthy subjects is necessary to establish a baseline for system performance and image quality prior to clinical translation.
Results and safety
This study is still under way. Results are not available in the source record yet.
Research links
- Official record on ClinicalTrials.govLast updated by the sponsor 10 Mar 2026.
- BackgroundLIA,
- Background: PubMed 25798298Fechtig DJ, Grajciar B, Schmoll T, Blatter C, Werkmeister RM, Drexler W, Leitgeb RA. Line-field parallel swept source MHz OCT for structural and functional retinal imaging. Biomed Opt Express. 2015 Feb 4;6(3):716-35. doi: 10.1364/BOE.6.000716. eCollection 2015 Mar 1.
- Background: PubMed 26469616Spahr H, Hillmann D, Hain C, Pfaffle C, Sudkamp H, Franke G, Huttmann G. Imaging pulse wave propagation in human retinal vessels using full-field swept-source optical coherence tomography. Opt Lett. 2015 Oct 15;40(20):4771-4. doi: 10.1364/OL.40.004771.
- Background: PubMed 16424539Yanagi Y, Inoue Y, Jang WD, Kadonosono K. A2e mediated phototoxic effects of endoilluminators. Br J Ophthalmol. 2006 Feb;90(2):229-32. doi: 10.1136/bjo.2005.076711.
- Individual participant dataSharing planned: No
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Referral and contact
AzTrials does not enrol participants or take referrals. Contact the study team or a site listed below; they decide who can take part.
The record lists no contact. Use the official record to reach the sponsor.
1 site in 1 country: see every site and its status.
Questions about this trial
What is this clinical trial studying?
An observational study of Healthy Volunteers, run by Vanderbilt University Medical Center at 1 site in United States.
The full registered description is in the About this study section and the official record.
Who may be eligible to take part?
The sponsor lists 1 inclusion and 2 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.
Is this clinical trial currently recruiting?
The record says: enrolling by invitation, as of the sponsor's last update on 10 Mar 2026. Status can change between updates, so confirm with the study contact before making plans.
Where is the study taking place?
The record lists 1 site in United States. Whether a site is taking part right now should be confirmed with that site. See every site.
What are the possible benefits and risks?
They depend on the study and the treatment, and no study can promise a benefit. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.
Are results available for this study?
This study is still under way. Results are not available in the source record yet.
How can a doctor refer a patient or contact the research team?
The record lists no contact. The official record names the sponsor, who can be asked directly. AzTrials does not enrol participants or take referrals.
What does the primary outcome measure?
Novel Ophthalmic Diagnostics using Optical Coherence Tomography (time frame: Subjects enrolled in the study may periodically be asked to participate in follow-up imaging during the duration of the study. These follow-up sessions will be optional through study completion, an average of 2 years.). It is what the study was designed to measure, not a finding.
Where can I read the original study information?
On the ClinicalTrials.gov record for NCT04790890, which also lists 4 linked publications.
Does a listing mean the treatment is approved or proven to work?
No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.
How often is this information updated?
AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 10 Mar 2026.