Relationship Between Macular Thickness Measurement and Signal Strength in Optical Coherence Tomography

Relationship Between Macular Thickness Measurement and Signal Strength Using Stratus Optical Coherence Tomography

Status

Completed

Phases

Unknown

Study type

Observational

Source

ClinicalTrials.gov

Registry ID

NCT01115881

Enrollment

Registered

2010-05-04

Start date

2010-05-31

Completion date

2013-05-31

Last updated

2016-09-27

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Optical Tomography

Keywords

To examine the relationship between signal strength and macular thickness measured by stratus OCT

Brief summary

Signal strength is a parameter introduced in analysis software version 4.0.1, of the OCT stratus, that combines SNR and uniformity of the signal within a scan The scale of signal strength ranges from 1 to 10, with 1 representing poor image quality and 10 representing excellent image quality It has been showed that signal strength has a better image quality discriminating ability than SNR The operation manual recommends a minimum signal strength of 5 for macular thickness measurement There is no consensus on the level of signal strength above which should be considered to be good quality The inclusion Criteria for acceptable signal strength varies widely in the literature the purpose of our study is to examine the relationship between signal strength and macular thickness measured by stratus OCT

Interventions

None listed

Study design

Observational model

COHORT

Time perspective

PROSPECTIVE

Eligibility

Sex/Gender

ALL

Age

18 Years to No maximum

Healthy volunteers

Yes

Inclusion criteria

* healthy subjects in this study other than refractive error, all included eyes had no concurrent ocular pathologic features BCVA of at least 20/30, and had spherical refractive error within the range of * 4.00 D to 4.00 D

Exclusion criteria

Countries

Israel

Outcome results