ISRCTN ISRCTN34037927
DOI https://doi.org/10.1186/ISRCTN34037927
Secondary identifying numbers 08/H0808/198
Submission date
30/10/2009
Registration date
30/11/2009
Last edited
11/12/2013
Recruitment status
No longer recruiting
Overall study status
Completed
Condition category
Eye Diseases
Prospectively registered
Protocol
Statistical analysis plan
Results
Individual participant data

Plain English summary of protocol

Not provided at time of registration

Contact information

Miss Sobha Sivaprasad
Scientific

Dept. Ophthalmology
King's College Hospital NHS Trust
Denmark Hill
London
SE5 9RS
United Kingdom

Phone +44 (0)20 3299 3385
Email senswathi@aol.com

Study information

Study designSingle centre randomised single blinded controlled trial
Primary study designInterventional
Secondary study designRandomised controlled trial
Study setting(s)Hospital
Study typePrevention
Participant information sheet Not available in web format, please use the contact details below to request a patient information sheet
Scientific titleThe effect of prevention of Dark Adaptation (DA) on the progress of Diabetic Macular oEdema (DME)
Study acronymDA and DME
Study objectivesBy reducing the metabolic demand of retinal rods, which is maximal in dark adaptation, retinal hypoxia in diabetic eye disease will be reduced, and the progress of diabetic eye disease reversed.
Ethics approval(s)Approved by Kings College Hospital Research Ethics Committee (REC) in February 2009 (ref: 08/H0808/198)
Health condition(s) or problem(s) studiedDiabetic retinopathy
InterventionPatients will sleep wearing a device ('light mask') that illuminates one (closed) eyelid. The eye is chosen at random. The other eye acts as control.
Each patient will be treated for 6 months
Intervention typeOther
Primary outcome measure1. Ocular coherence tomography (OCT)
2. Microperimetry
3. Colour contrast sensitivity
4. Visual acuity
5. Digital fundus photography with quantitative analysis of microaneurysms

Investigations are made at baseline, 3 and 6 months
Secondary outcome measuresNone
Overall study start date01/03/2009
Completion date01/05/2010

Eligibility

Participant type(s)Patient
Age groupAdult
Lower age limit18 Years
Upper age limit65 Years
SexBoth
Target number of participants40
Key inclusion criteria1. Adults age 18-65
2. No systemic disease apart from diabetes (type I or II)
3. Symmetrical DME which cannot be treated surgically, or does not require immediate intervention
Key exclusion criteria1. Any other systemic disease or severe diabetic complication
2. Any other eye condition except refractive error of > 5 D
3. History of any psychological disturbance
4. Persons of no fixed abode
5. Sleep apnoea.
6. Inability to tolerate the device, or difficulty in sleeping wearing the device.
Date of first enrolment01/03/2009
Date of final enrolment01/05/2010

Locations

Countries of recruitment

  • England
  • United Kingdom

Study participating centre

Dept. Ophthalmology
London
SE5 9RS
United Kingdom

Sponsor information

King's College Hospital NHS Trust (UK)
Hospital/treatment centre

Dept Ophthalmology
King's College Hospital NHS Trust
Denmark Hill
London
SE5 9RS
England
United Kingdom

Phone +44 (0)2073599080
Email geoffreyarden@aol.com
ROR logo "ROR" https://ror.org/01n0k5m85

Funders

Funder type

Other

Internal funding

No information available

Results and Publications

Intention to publish date
Individual participant data (IPD) Intention to shareNo
IPD sharing plan summaryNot provided at time of registration
Publication and dissemination planNot provided at time of registration
IPD sharing plan

Study outputs

Output type Details Date created Date added Peer reviewed? Patient-facing?
Results article results 01/12/2011 Yes No