The aim of this study is to determine if retinal defects and detachments can be detected by fundus photographs taken with the Optos 200Tx fundus camera.
ID
Source
Brief title
Condition
- Retina, choroid and vitreous haemorrhages and vascular disorders
Synonym
Research involving
Sponsors and support
Intervention
Outcome measures
Primary outcome
The proportion of retinal defects/detachments detected on Optos fundus
photographs. The gold standard is a confirmed defect or detachment detected
with fundoscopy performed by an ophthalmologist.
Secondary outcome
none
Background summary
Retinal defects and detachments can be seen in a variety of retinal pathology:
posterior vitreous detachment (PVD), macular pucker or after a blunt trauma to
the eye. PVD is by far the most common cause. Patients with a PVD present with
complaints of floaters and light flashes. In the normal aging process, the
vitreous gel changes its consistency - seen by the patient as floaters - and
looses its usual shape. As a result, it begins to move away from the retina at
the back of the eye towards the centre of the eye. As it moves, it can pull on
the retina and then a patient sees flashes of light. In some but not all
patients, a tear in the retina is torn at the moment of the PVD. Tears can be
repaired with laser photocoagulation. If not timely treated, fluid cumulates
under the retina and this results in a retinal detachment. Surgery is needed to
reattach the retina. If surgery is delayed for whatever reason, the probability
of a beneficial outcome decreases rapidly.
As PVD is quite common, screening - by fundoscopy - for retinal defects and
detachments is a significant part of the workload of the ophthalmologist. It
would be very efficient if this screening could be deferred to auxiliary
personnel. Unfortunately, fundoscopy is difficult and requires a lot of
experience. Recent advances in technology yielded the Optos 200Tx non-mydriatic
fundus camera. This camera is able to photograph 200 degrees (essentially the
entire) of retina at once. Thus, this camera might assist auxiliary personnel
in screening for retinal defects/detachments in patients with compaint that
indicate the presence of a PVD (light flashes and floaters).
Study objective
The aim of this study is to determine if retinal defects and detachments can be
detected by fundus photographs taken with the Optos 200Tx fundus camera.
Study design
Cross-sectional observation study in a clinical setting, the outpatient
department of the department of Ophthalmology, UMCG.
Study burden and risks
A single fundus photograph will be taken with the Optos 200Tx non-mydriatic
fundus camera during a regular care visit (because of complaints of light
flashes and/or floaters) to our outpatient department. The mydriasis
(instillation of drops that dilate the pupil) is part of our routine eye care
and is necessary to perform fundoscopy (the Optos does not require mydriasis).
hanzeplein 1
groningen 9700 RB
NL
hanzeplein 1
groningen 9700 RB
NL
Listed location countries
Age
Inclusion criteria
All patients aged 18 or above complaining of light flashes and floaters
Exclusion criteria
Age below 18 years.
Absence of informed consent
Design
Recruitment
Followed up by the following (possibly more current) registration
No registrations found.
Other (possibly less up-to-date) registrations in this register
No registrations found.
In other registers
| Register | ID |
|---|---|
| CCMO | NL40015.042.12 |