Diabetic retinopathy Eye Diseases Retinal diseases
Conditions
Interventions
Sponsors
Eligibility
Inclusion criteria
Inclusion criteria: Added as of 09/05/2008: 1. Both males and females 2. Patients undergoing pan retinal photocoagulation (PRP) for any reason: 2.1. Pan retinal/ sectoral 2.2. One/ both eyes NB: Previous laser treatment to the same eye is not an exclusion criteria
Exclusion criteria
Exclusion criteria: Added as of 09/05/2008: 1. Age <18 years 2. Morphine/ codeine allergy 3. Chronic obstructive pulmonary disease/ emphysema 4. Mental incapability to provide informed consent 5. Concomitant or recent (within 2 weeks) use of monoamine oxidase inhibitors (MAOIs)
Design outcomes
Primary
| Measure | Time frame |
|---|---|
| Added as of 09/05/2008: 1. Visual analogue pain score (100 mm) for each patient, after each laser treatment session 2. Side effect questionnaire for each patient, after each laser treatment session | — |
Secondary
| Measure | Time frame |
|---|---|
| Added as of 09/05/2008: 1. Calculation of the mean and standard deviation of outcome measurements | — |
Countries
United Kingdom