ClinicalTrials.gg
CompletedNCT03578302Updated Jun 12, 2025

The Heidelberg Engineering BI US Evaluation Study

An observational study in Normal Eyes and Eye Abnormalities, sponsored by Heidelberg Engineering GmbH. Completed at 1 site in United States. Open to participants aged 18 Years and older, including healthy volunteers. Per ClinicalTrials.gov, last updated 2025-06-12.

Sponsored by Heidelberg Engineering GmbH (part of EssilorLuxottica) · Observational

Study type
Observational
Model
Case-crossover
Time perspective
Prospective
Enrollment
39
Ages
18 Years and older
Sex
All
01

Study summary

Evaluation of defined parameters measured in pathological and non-pathological eyes with the Heidelberg BI

Read the detailed description

The primary objectives of this study are to assess the feasibility to acquire acceptable images and to assess repeatability

02

Conditions studied

  • Normal Eyes
  • Eye Abnormalities

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03

In context

Eye Abnormalities

28 studies on the registry are indexed under Eye Abnormalities; 3 are open to participants now.

This study's enrollment of 39 is below the median of 100 across 14 observational studies indexed under Eye Abnormalities.

Browse Eye Abnormalities studies →

Lead sponsor

Heidelberg Engineering GmbH is the lead sponsor of 22 studies on the registry; 1 is open to participants now.

First submitted before Heidelberg Engineering GmbH became part of EssilorLuxottica.

Counted across the registry records on this site, refreshed daily.

04

Who can participate

Ages eligible
18 Years and older
Sexes eligible
All
Accepts healthy volunteers
Yes
Sampling method
Probability sample

Study population

Subjects with:

  1. Eyes with Normal Anterior Segment or
  2. Eyes with Abnormal Anterior Segment, including Eyes with Cataract Eyes without a Crystalline Lens Eyes with Corneal Abnormality Eyes with Anterior Segment Pathology

Go through the criteria one by one — yes, no or not sure — and take the list to your doctor or the study team. Kept in this browser only.

Inclusion criteria

  1. Age 18 years or older
  2. Able and willing to undergo the test procedures, sign , and follow instructions

    At least one of the following:

  3. Eyes with Normal Anterior Segment
  4. Eyes with Cataract
  5. Eyes without a Crystalline Lens
  6. Eyes with Corneal Abnormality
  7. Eyes with Anterior Segment Pathology

Exclusion criteria

Exclusion Criteria:

  1. Subjects unable to read or write
  2. Active infection or inflammation in one or both eyes
  3. Insufficient tear film or corneal reflex
  4. Physical inability to be properly positioned at the study devices or eye exam equipment
  5. Inability to fixate
  6. Rigid contact lens wear during past 2 weeks
  7. Soft lenses, in the study eye, if worn, should be removed at least one hour prior to the measurements *Note: Eyes with risk for acute angle closure glaucoma are excluded from the dilated portion of the study
Terms in these criteria, in plain language(1)

Underlined terms in the criteria open these too. Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.

Informed consent

Before you join, the study team explains what taking part involves — its purpose, what happens, the risks and possible benefits — and answers your questions, so you can decide freely. Consent is usually recorded on a form (the informed consent form, ICF) signed by you or, where the law allows, by someone legally authorised to decide for you.

You can keep asking questions during the study, you are told of new information that matters, and you can choose to leave at any time.

05

Study design

Observational model
Case-crossover
Time perspective
Prospective
Enrollment
39 participants (actual)
Patient registry
No

Groups and cohorts

  • Anterior Segment Pathology

    single measurement Anterior Segment Pathology

    Device: BI Anterior Segment Mode

  • All except Anterior Segment Pathology

    3 repeat measurements with and without dilation for all eyes except Anterior Segment Pathology

    Device: BI Anterior Segment and IOL Biometry Mode

Interventions

  • DeviceBI Anterior Segment Mode

    Single eye measurement in Anterior Segment Mode

  • DeviceBI Anterior Segment and IOL Biometry Mode

    Eye measurement 3 times with and without dilation in IOL biometry and Anterior Segment mode

06

What researchers measure

Primary outcomes

  1. Percentage of successfully scanned biometry images of the eye

    Percentage of successfully scanned biometry images of the eyes per scan mode. Success is defined as agreement of the subjective assessment of the operator and the auto assessment of the device.

    Time frame: 1 day

  2. Repeatabiltiy of specific parameters of the biometry images of the eye

    Repeatability of specific parameters stratified by different eye pathologies

    Time frame: 1 day

07

Study locations

1 site
  • State University of New York College of Optometry
    New York, New York 10036, United States
08

Timeline

Tracking since Sep 25, 2026
ElapsedEstimatedEstimated, not yet reached

Ran from May 2018 to primary completion in Dec 2018, 6 months.

How these figures are worked out, and which studies are left out of them.

Registered
Jun 21, 2018
First posted
Jul 6, 2018
StartActual
May 22, 2018
Primary completionActual
Dec 3, 2018
CompletionActual
Dec 3, 2018
Last update
Jun 12, 2025
What these dates mean
Start.
When the first participant enrolled; while estimated, when the study expects to open to recruitment.
Primary completion.
When the last participant was examined or treated to collect data for the study's main question, its primary outcome. A study that stopped early gives the date its data collection stopped.
Completion.
When the last participant's last visit took place, for every outcome, secondary ones and side effects included: the end of the study. Often later than primary completion, sometimes the same day.
Actual and Est.
Actual means the registry says the date has happened. Est. (estimated) is a date the sponsor plans or expects. It can still move, and the sponsor is expected to change it to actual once it has passed.
No changes since tracking began. The registry record was last updated on Jun 12, 2025, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
09

Registry details

Key details

Study ID
NCT03578302
Responsible party
Sponsor
First posted
Jul 6, 2018
Start date
May 22, 2018
Primary completion
Dec 3, 2018
Completion
Dec 3, 2018
Last update
Jun 12, 2025

Study contacts

Mitchell Dul, OD
principal investigator · State University of New York College of Optometry

Oversight

FDA-regulated drug
No
FDA-regulated device
Yes
View the source record on ClinicalTrials.gov ↗

Not currently enrolling

This study is completed, as verified in Jan 2019. You cannot join it, but the record below documents what was studied.

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Discussion

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