Macular toxicity following brilliant blue G-assisted macular hole surgery - a report of three cases.

INTRODUCTION: Brilliant blue G is a new dye used for staining the internal limiting membrane to ease its peeling in cases like a macular hole. CASES: Three patients presented with full-thickness idiopathic macular hole. They underwent pars planavitrectomy, Brilliant Blue G (BBG) stained internal limiting membrane peeling and fluid gas exchange. OBSERVATIONS: Postoperatively,the macular hole closed but foveal thinning and perifoveal hyperpigmentation presumably due to BBG toxicity were observed in all three patients. All of them had a subnormal final best corrected visual acuity. CONCLUSION: This case series highlights the unusual occurrence of macular toxicity following brillantblue G-assisted macular hole surgery.

Subfoveal triamcinolone acetonide following macular hole surgery.

BACKGROUND: Triamcinolone acetonide (TA) is commonly used in vitreous surgery to visualize the posterior hyaloid and internal limiting membrane. Some TA can accumulate in the macular hole during surgery which can persist postoperatively. CASE: A 17-year-old boy underwent successful macular hole surgery with TA-assisted induction of posterior vitreous detachment. Sub-foveal deposit of TA was observed postoperatively, which got absorbed at 7 weeks with complete closure of the macular hole, and best corrected visual acuity improved from 20/100 preoperatively to 20/60. CONCLUSION: Residual TA after macular hole surgery may not hamper the anatomical and functional outcome. Similar cases have been reported in the literature and most of them show no harmful effect of TA on macular hole closure and visual recovery.

Endophthalmitis following open-globe injuries.

The incidence of traumatic endophthalmitis may be decreasing due to earlier wound closure and prompt initiation of antibiotics. Risk factors for endophthalmitis include retained intraocular foreign body, rural setting of injury, disruption of the crystalline lens, and a delay in primary wound closure. The microbiology in the post-traumatic setting includes a higher frequency of virulent organisms such as Bacillus species. Recognizing early clinical signs of endophthalmitis, including pain, hypopyon, vitritis, or retinal periphlebitis may prompt early treatment with intravitreal antibiotics. Prophylaxis of endophthalmitis in high-risk open-globe injuries may include systemic broad-spectrum antibiotics, topical antibiotics, and intravitreal antibiotics to cover both Gram-positive and Gram-negative bacteria. For clinically diagnosed post-traumatic endophthalmitis, intravitreal vancomycin, and ceftazidime are routinely used. Concurrent retinal detachment with endophthalmitis can be successfully managed with vitrectomy and use of intravitreal antibiotics along with a long acting gas or silicone oil tamponade. Endophthalmitis is a visually significant complication of open-globe injuries but early wound closure as well as comprehensive prophylactic antibiotic treatment at the time of injury repair may improve visual acuity outcomes.

Eales' disease: diagnosis and management.

Eales' disease is an idiopathic inflammatory venous occlusive disease. It primarily affects young adults and is often bilateral. It is characterized by three overlapping stages of venous inflammation (vasculitis), occlusion, and retinal neovascularization. Diagnosis is mostly clinical and requires exclusion of other systemic or ocular conditions that could present with similar retinal features. Recurrent vitreous haemorrhage is the hall mark of Eales' disease. Treatment is usually corticosteroids in the inflammation stage and photocoagulation in the proliferative stage of the disease. Visual prognosis is good if treated early in the course of the disease.