CompletedNot Applicable

Effect of Protanopia on the Brightness Perception of Brake Lights

Germany16 participantsStarted 2020-01-07

Plain-language summary

The aim of the offered project is to investigate the influence of protanopia (red blindness) or protanomaly (red vision weakness) on the recognizability of red brake lights with the help of a test person study. From this, estimates of the influence of protanopia or protanomaly on driving ability are to be derived. If a relevant influence can be demonstrated in the study, recommendations for action for the legislator will be made. Translated with www.DeepL.com/Translator

Who can participate

Age range

18 Years

Sex

MALE

See this in plain English?

AI-rewrites the medical criteria so a patient or caregiver can understand them. Always confirm with the trial site.

Inclusion Criteria: * informed consent * male * age (greater or equal) 18 years Exclusion Criteria: * binocular (high contrast) distant visual acuity worse than 0.8 (16/20) * spherical ametropia exceeding 8 dpt * cylindrical ametropia exceeding 2.5 dpt * manifest strabismus (squint) with diplopia * relative afferent pupillary defect exceeding 0.3 log units * anamnestic (patient history) OR morphological (slit lamp --\> anterior segment, ophthalmoscope --\> retina) clue/indicator for a ophthalmologically relevant affection of the eye OR the visual pathway * S.p. severe ocular trauma * Current OR s.p. severe intraocular inflammation * S.p. intraocular surgery within the past three months

Questions worth asking your doctor

Bring these to your next appointment. They're a starting point for a shared conversation — not a sign you qualify or a recommendation to enrol.

1Based on my diagnosis and history, is this trial worth exploring for me — or is there a standard treatment we should try first?
2What does this trial's phase tell us about how much is already known about its safety and benefit?
3What would taking part actually involve for me — visits, tests, time, and travel?
4What are the known and possible risks or side effects I should weigh, and how would they be monitored?
5If this trial isn't the right fit, what other options or trials would you suggest I look into?

Generated to help you prepare — always confirm anything about your own eligibility and care with the study team and your doctor.

Questions for the trial coordinator

The trial coordinator is the person who runs the study day to day. These cover the practical side — logistics, costs, and what taking part would actually mean for your life. The study team confirms whether you meet the criteria; these are questions to ask, not a sign you qualify.

1What does taking part actually involve week to week — how many visits, where, and how long does each one take?
2What costs are covered by the study, and what might I have to pay for myself, including travel, parking, or time off work?
3What happens during screening, and what happens if the study team confirms I don't meet the criteria after those tests?
4Who pays for the scans, blood work, and other tests the trial requires — the study, my insurance, or me?
5How will being in the trial affect my regular care, and will my own doctor stay informed and involved?
6Can I leave the trial at any point if I change my mind, and what would happen to my care if I do?

A starting point for the conversation — always confirm anything about your own eligibility, costs, and care with the study team and your doctor.

What they're measuring

Contrast sensitivity (I)

Timeframe: within one year

Trial details

NCT IDNCT04060238

SponsorAalen University

Sponsor typeOTHER

Study typeOBSERVATIONAL

Primary completion2020-03-15

View on ClinicalTrials.gov More Color Blindness, Red trials