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NCT Number: NCT01866371

High Resolution Retinal Imaging

Studying the morphology and function of the normal and diseased retina in vivo is needed for advancing the detection, diagnosis, and treatment of retinal disease. This protocol uses an adaptive optics scanning laser ophthalmoscope (AOSLO) to image the normal and diseased retina with individual cellular resolution non-invasively. The primary objective of this study is to obtain and analyze high-resolution images of the retina, in particular by imaging the cone photoreceptor mosaic, the retinal vasculature and other retinal layers. The study design will involve case-control studies, where cases are followed over time. Subjects age 7 and older may be invited to participate. The main research procedure involves retinal imaging with the AOSLO. The primary endpoint is the observation of differences in retinal images between subjects with and without retinal diseases. These changes will be quantified by examining the cell density, size, spacing and regularity of the cone photoreceptor mosaic, as well as examining the differences between other retinal layers.

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Key information

Age range

7 year and older

Sex eligibility

All sexes

Study type

Observational

Primary location

University of Pennsylvania

Philadelphia, Pennsylvania, 19104, United States

Location status: Recruiting

Location contact

Jessica IW Morgan, PhD

CONTACT

[email protected]

215-614-4196

Who can participate

Healthy volunteers accepted: Yes

Only the study team can determine whether someone qualifies for participation.

Inclusion criteria

  • Males or females age 7 years or older.
  • Parental/guardian permission (informed consent) and if appropriate, child assent. Child subjects age 7-17 must give assent.
  • Reasonable compliance with an imaging protocol as determined by the study personnel.

Exclusion criteria

  • Individuals that are at risk to acute glaucoma.
  • Individuals that are photophobic and experience adverse psychological reactions to flashes of light.
  • Ocular opacities, high refractive error, and high frequency of nystagmus as determined by the study team.

Treatment and study plan

retinal imaging

Procedure

Retinal imaging procedures include adaptive optics imaging, optical coherence tomography and fundus photography.

Primary outcomes

  1. high-resolution images of retina

    Time frame: 1 day (initial visit)

    The primary objective of this study is to obtain and analyze high-resolution images of the retina in normal and diseased eyes non-invasively.

Secondary outcomes

  1. Cone mosaic parameters

    Time frame: 1 day (initial visit)

    Imaging the cone photoreceptor mosaic, and analyzing cell density, size, spacing, regularity, and other mosaic parameters in normal retina compared to diseased retina.

Study contacts

Contact information is provided by the study sponsor or research team.

Jessica IW Morgan, PhD

CONTACT

[email protected]

215-614-4196

Sponsors and collaborators

Lead sponsor

University of Pennsylvania

Other

Collaborators

  • National Eye Institute (NEI)

Registry information

Acronym: AOSLO

Important dates

Study start
2013
Primary completion
2030
Study completion
2031
First posted
May 31, 2013
Registry last updated
May 5, 2026

OpenTrials presents study information sourced from ClinicalTrials.gov. The official registry record should be consulted for the latest information.

View the official ClinicalTrials.gov record (opens in a new tab)

This listing is for discovery and informational purposes only. It is not medical advice, does not guarantee that a study is recruiting, and does not determine eligibility. Contact the study team and a qualified healthcare professional when considering participation.

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