Do blue-blocking lenses block blue colour from our lives? A randomised controlled study measuring colour vision using the gold standard colour vision test (an anomaloscope) in patients with blue filtering intraocular lenses (tinted yellow)
| ISRCTN | ISRCTN21290113 |
|---|---|
| DOI | https://doi.org/10.1186/ISRCTN21290113 |
| ClinicalTrials.gov (NCT) | NCT00403143 |
| Protocol serial number | N0515186315 |
| Sponsor | Record Provided by the NHSTCT Register - 2007 Update - Department of Health (UK) |
| Funder | North West London Hospitals NHS Trust (UK) |
- Submission date
- 28/09/2007
- Registration date
- 28/09/2007
- Last edited
- 27/11/2019
- Recruitment status
- Stopped
- Overall study status
- Stopped
- Condition category
- Eye Diseases
Prospectively registered
Protocol
Statistical analysis plan
Results
Individual participant data
Record updated in last year
Plain English summary of protocol
Not provided at time of registration
Contact information
Miss Amynah Goawalla
Scientific
Scientific
Department of Ophthalmology
North West London Hospitals NHS Trust
Central Middlesex Hospital
Acton Lane
Park Royal
London
NW10 7NS
United Kingdom
| Phone | +44 (0)20 8963 7158 |
|---|---|
| amynahgoawalla@gmail.com |
Study information
| Primary study design | Interventional |
|---|---|
| Study design | Randomised controlled trial |
| Secondary study design | Randomised controlled trial |
| Scientific title | Do blue-blocking lenses block blue colour from our lives? A randomised controlled study measuring colour vision using the gold standard colour vision test (an anomaloscope) in patients with blue filtering intraocular lenses (tinted yellow) |
| Study objectives | To measure colour vision in patients with a blue light filtering lens implant in one eye and a non-tinted implant in the other eye (and compare this group with a control group with bilateral non-tinted implants) and to determine whether blue light filtering lenses limit colour vision in any way. |
| Ethics approval(s) | Not provided at time of registration |
| Health condition(s) or problem(s) studied | Eye Diseases: Visual sense |
| Intervention | Blue light filtering lens implant in one eye vs non-tinted implant in the other eye. A paired t-test will be used to analyse the results. |
| Intervention type | Other |
| Primary outcome measure(s) |
Not provided at time of registration |
| Key secondary outcome measure(s) |
Not provided at time of registration |
| Completion date | 30/10/2007 |
Eligibility
| Participant type(s) | Patient |
|---|---|
| Age group | Not Specified |
| Sex | Not Specified |
| Target sample size at registration | 40 |
| Key inclusion criteria | Not provided at time of registration |
| Key exclusion criteria | Not provided at time of registration |
| Date of first enrolment | 01/10/2006 |
| Date of final enrolment | 30/10/2007 |
Locations
Countries of recruitment
- United Kingdom
- England
Study participating centre
Department of Ophthalmology
London
NW10 7NS
United Kingdom
NW10 7NS
United Kingdom
Results and Publications
| Individual participant data (IPD) Intention to share | No |
|---|---|
| IPD sharing plan summary | Not provided at time of registration |
| IPD sharing plan |
Editorial Notes
27/11/2019: The trial was stopped in 2007 and no results were or will be published.
25/11/2019: ClinicalTrials.gov number added. No publications found. Verifying results with principal investigator
18/05/2017: No publications found in PubMed, verifying study status with principal investigator.
