Background
To report a retrospective non-comparative interventional study on the effectiveness and ocular tolerance of a heavy silicone
oil tamponade (HSO, Densiron-68) for primary inferior rhegmatogenous retinal detachment (RRD).
Methods
Forty-one eyes of 41 consecutive patients were recruited between January 2004 and August 2006. Primary vitrectomy with Densiron-68,
a heavy silicone oil, was used in all cases. Inclusion criteria were primary RRD with at least one retinal break between 4
and 8 clock hours. The study protocol consisted of a minimum of eight clinic visits: baseline, surgery, 1 week, 1 month and
3 months after the initial surgery; removal of oil and 1 week, 1 month and 3 months postoperatively. The primary endpoint
was anatomical re-attachment of the retina. Cases were judged successful when there was reattachment of the retina in the
absence of any tamponade agent. The secondary endpoint was to record the visual function and any complications arising from
the surgery. Out of 41 patients initially included in the study, 33 completed all follow-up visits.
Results
Anatomical success was achieved in 91% of cases (30 out of 33) with one retinal operation, and rose to 94% (31 out of 33)
with additional surgery. Mean visual acuity improved from logMAR 1.19 (SD 0.9) to 0.5 (SD 0.51, p = 0.001). No significant ocular hypertension, clinically significant emulsification of the tamponade or inflammation developed
during follow-up.
Conclusion
With Densiron-68, high anatomical and functional success rates can be achieved with primary vitrectomy for RRD and predominantly
inferior pathology.
Keywords Semifluorinated alkanes - Perfluorohexyloctane - Primary inferior - Rhegmatogenous retinal detachment - Heavy silicon oil