A randomised controlled trial to evaluate the effect of face-down posturing on retinal displacement and distortion following retinal detachment repair.
During the surgical repair of a retina detachment, a gas bubble is inserted into the eye to keep the retina flat. Following this, it is common to ask patients to adopt a certain head position for a set period of time after their operation. This is known as posturing. It is thought that by adopting a certain head position/posturing, the bubble aids re-attachment of the retina. However, when the retinal detachment involves the macula (central portion of the retina) it has been shown that the retina can shift (or displace) post-operatively, leading to distortion in the patient's vision. The purpose of this study is to investigate whether adopting different head positions following surgery for macula involving retinal detachments, can reduce retinal displacement and visual distortion. The investigators plan to recruit 368 patients. Patients will be in follow up for a period of six months. The study will be operational at two different hospitals in the United Kingdom.
Study Type
OBSERVATIONAL
Enrollment
262
To assess the proportion of patients in each treatment group with retinal displacement at 26 weeks after surgery
The proportion of patients in each treatment group with retinal displacement at 26 weeks after surgery
Time frame: 26 Weeks
To assess the degree of retinal displacement on autofluorescence imaging
Degree of retinal displacement on autofluorescence imaging at 26 weeks
Time frame: 26 Weeks
To assess proportion of patients in each group with retinal displacement at 8 weeks
The proportion of patients in each group with retinal displacement at 8 weeks after surgery.
Time frame: Eight weeks
To report the mean (SD)/median (IQR) ETDRS visual acuity score at two different time-points
To report the mean (SD)/median (IQR) ETDRS visual acuity score at 8 and 26 weeks after surgery in each treatment group
Time frame: Eight and 26 weeks
To report the mean(SD)/median(IQR) Objective distortion score at two different time-points
To report the mean(SD)/median(IQR) Objective distortion score at 8 and 26 weeks after surgery in each treatment group - with Objective distortion measured with D Charts
Time frame: Eight and 26 weeks
To report the mean (SD) / median (IQR) Visual function score as measured using the Visual Function Questionnaire
To report the mean (SD) / median (IQR) Visual function score as measured using the Visual Function Questionnaire (NEI Visual Function Questionnaire 25) in each treatment group at 26 weeks after surgery.
Time frame: 26 Weeks
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