Macular hemorrhage after roller coaster riding in a single-eyed patient with congenital glaucoma / Hemorragia macular após passeio em montanha russa em paciente monocular com glaucoma congênito

ABSTRACT A 21-year-old female presented with a 4-day history of decreased vision in her only functional eye (right eye, OD). She had a history of multiple ocular surgeries in both eyes because of congenital glaucoma and had lost light perception in her left eye several years prior. Ophthalmological examination revealed 0.15 Snellen visual acuity, and fundoscopy revealed nearly total cupping and pallor of the optic disc and multiple retinal hemorrhagic foci in the macula in OD. Lesions spontaneously resolved over a few months. Gravitational forces during a roller coaster ride may have caused this macular hemorrhage.

RESUMO Uma paciente de 21 anos de idade se apresentou com perda de visão há quatro dias em seu único olho com visão útil. Ela tinha uma história de cirurgias oculares múltiplas nos dois olhos devido a um glaucoma congênito e perda de percepção luminosa em olho esquerdo há muitos anos. O exame oftalmológico revelou acuidade visual de Snellen de 0,15 e na fundoscopia foi observada escavação do nervo óptico quase total e palidez de papila, assim como focos hemorrágicos múltiplos na região macular. As lesões se resolveram espontaneamente em alguns meses. Acreditamos que essas hemorragias maculares tenham sido causadas pelas forças gravitacionais geradas durante o passeio na montanha russa.

Comparison of the effects of intravitreal bevacizumab and triamcinolone acetonide in the treatment of macular edema secondary to central retinal vein occlusion.

Aim: To compare the effects of intravitrealbevacizumab (IVB) and intravitreal triamcinolone acetonide (IVT) in the treatment of macular edema (ME) secondary to central retinal vein occlusion (CRVO). Materials and Methods: There were 20 patients treated with IVB (1.25 mg/0.05 mL) and 16 treated with IVT (4 mg/0.1 mL). The two groups were compared with regard to best-corrected visual acuity (BCVA), central macular thickness (CMT) on optical coherence tomography (OCT), slit-lamp biomicroscopy and fundus fluorescein angiography results, intraocular pressure (IOP), numbers of injections, and adverse events. Results: The mean follow-up times in the IVB and IVT groups were 17.45±8.1 months (range: 8–33 months) and 19.94±10.59 months (range: 6–40 months), respectively (P = 0.431). Visual acuity increased and CMT decreased significantly within both groups, but no differences were observed between the groups (P = 0.718). The percentages of patients with increased IOP and iatrogenic cataracts were significantly higher in the IVT group than in the IVB group. Conclusions: Treatment with IVB and IVT both resulted in significant improvement in visual acuity and a decrease in CMT in patients with ME secondary to nonischemic CRVO, with no difference between the two treatments. The incidence of adverse events, however, was significantly greater in the IVT group than in the IVB group. IVB may be preferred over IVT for the treatment of ME in patients with non-ischemic CRVO.