Abstract
Background. To investigate the efficacy of selective laser trabeculoplasty (SLT) for lowering intraocular pressure (IOP) in patients with open angle glaucoma (OAG) secondary to emulsified silicone oil (SO). Methodology/Principal Findings. Prospective, interventional, consecutive case series of 11 eyes with sustained elevation of IOP after SO removal. The mean IOP at baseline, week 1, month 1, month 3, and month 6 was evaluated. The mean baseline IOP was significantly decreased from 25 ± 2.7 mmHg to 18.4 ± 5.5 mmHg at week 1 (P = 0.01), 17.9 ± 3.1 mmHg at month 1 (P = 0.008), 15.8 ± 3.9 mmHg at month 3 (P = 0.003), and 16.2 ± 4.7 mmHg at month 6 (P = 0.004). IOP < 21 mmHg was achieved in 91% of the eyes without a significant complication at month 6. Conclusion/Significance. SLT may be successful for lowering IOP in patients with OAG secondary to emulsified SO which was not controlled with maximum antiglaucomatous medical treatment.
Highlights
Silicone oil (SO) as an endotamponade in the treatment of retinal detachments was first introduced by Cibis et al in 1962 [1]
We assume that peripheral anterior synechia might have been resulted from iridectomy procedure at the time of pars plana vitrectomy in patient 8
Emulsification of silicone oil (SO) carries a high risk of intraocular pressure (IOP) elevation by mechanically obstructing the trabecular meshwork [15]
Summary
Silicone oil (SO) as an endotamponade in the treatment of retinal detachments was first introduced by Cibis et al in 1962 [1]. SO removal is an effective treatment for lowering intraocular pressure (IOP); it does not always provide IOP control. Success rates of medical treatment in controlling high IOP levels in SO related secondary glaucoma vary between 30% and 78% [9, 10]. While the medical antiglaucomatous treatments have high failure rates in the management of glaucoma secondary to SO, conventional glaucoma surgery has a limited success and carries high risk of complications such as hypotony and phthisis [11, 12]. To investigate the efficacy of selective laser trabeculoplasty (SLT) for lowering intraocular pressure (IOP) in patients with open angle glaucoma (OAG) secondary to emulsified silicone oil (SO). SLT may be successful for lowering IOP in patients with OAG secondary to emulsified SO which was not controlled with maximum antiglaucomatous medical treatment
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