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Arboviruses are viral diseases transmitted by mosquitoes and tics bites. They are a major cause of morbidity and sometimes mortality. Their expansion is constant and due in part to climate change and globalization. Mostly found in tropical regions, arboviruses are sometimes the source of epidemics in Europe. Recently, the Chikungunya virus and the Zika virus were responsible for very large epidemics impacting populations that had never been in contact with those viruses. There are currently no effective antiviral treatments or vaccines. Ocular manifestations due to those infections are thus more frequent and increasingly better described. They are sometimes, as with Zika, complicated by a congenital ocular syndrome. The goal of this review is to describe the ophthalmological manifestations of Dengue fever, Chikungunya virus, Zika virus, West Nile virus, and yellow fever., (Copyright © 2018 Elsevier Masson SAS. All rights reserved.)

Introduction: Non-Hodgkin lymphomas (NHLs) constitute a group of heterogeneous diseases that can arise in lymphatic nodal or extranodal sites. Ocular lymphomas account for 1% of all NHLs. Tumor of the orbit, which can lead to compression of the optic nerve, is the most frequent presentation of the disease. Primary infiltration of the optic nerve and its sheath remains exceptional., Observation: We report the case of a 51-year-old female patient treated for a NHL. While she was considered to be in remission after four courses of chemotherapy, she presented a right visual loss with hand motion acuity. Her examination revealed a right afferent pupillary defect. Brain MRI emphasized an infiltration of her right optic nerve with no other orbit abnormality. Cerebrospinal fluid analysis showed lymphomatous meningitis. She was then considered to have lymphomatous optic neuropathy (LON). Despite initial improvement of the visual acuity with treatment, the patient died of bone marrow aplasia 6 weeks later., Conclusion: LON can be suspected in a painful and sudden visual loss in a context of neoplasia. The diagnosis is confirmed by MRI and cerebrospinal fluid analysis. LON may occur as the sole ocular manifestation of disease recurrence in a patient with systemic NHL, otherwise thought to be in clinical remission., (Copyright © 2011 Elsevier Masson SAS. All rights reserved.)

Purpose: To determine the characteristics of infectious keratitis related to plano cosmetic lenses., Methods: Retrospective case study of a series of infectious keratitis among plano cosmetic lenses wearers. The main parameters were demographic data, medical history, risk factors for infectious complications and keratitis severity criteria, microbiological results, clinical course, and final visual acuity., Results: Five patients were included, all females, ranging from 15 to 50 years of age. Four were emmetropic. One patient had undergone refractive photokeratectomy a few months before. All had risk factors for infectious complications. The fundamental causes of infections were diverse: bacterial abscesses, keratomycosis, and amoebic keratitis. All presented severity criteria. In two cases, the keratitis led to severe consequences with legal blindness requiring penetrating keratoplasty in one case., Discussion: Infectious keratitis in plano cosmetic lenses wearers is not rare and may have dramatic consequences. Sales are specifically regulated and the lenses are considered cosmetic products, not medical devices. The sales regulations for plano cosmetic lenses should be updated, as several countries have already done after encountering many serious incidents., (Copyright 2010 Elsevier Masson SAS. All rights reserved.)

Objectives: To clarify the clinical and angiographic characteristics of idiopathic polypoidal choroidal vasculopathy (IPCV) and its natural course., Methods: Descriptive, prospective, consecutive case series of patients with presumed IPCV seen at Fort-de-France Hospital Center (French West Indies) between January and June 2006. All participants underwent complete eye examination and fluorescein and indocyanine green (ICG) angiography. The nature and location of the lesions were assessed in all eyes. Inclusion criteria were demonstration of characteristic lesions of IPCV on ICG angiography., Results: Diagnosis of IPCV was made in 26 eyes of 14 patients, ten women and four men, all of Afro-Caribbean origin. The mean age was 77.4 years (range 60-92 years). Drusen were present in 13 eyes (50%), age-related macular degeneration (AMD) in one eye, and branch retinal vein occlusion in one eye. Twelve patients (85.7%) had bilateral involvement. Twelve eyes (46.2%) had visual acuity (VA) (Snellen) worse than 20/200, six eyes (23.1%) had VA between 20/200 and 20/100, and eight eyes (30.8%) had VA better than 20/100. On ICG angiography, lesions were predominantly located in the peripapillary area but also in the midperiphery, the macular and interpapillomacular areas, and the far periphery., Conclusion: Peripheral locations of IPCV and associations with drusen or AMD are not rare. The prognosis of the disease is poor in its natural course. Its etiology is unknown but genetic factors are probably involved. It is the main differential diagnosis for exudative AMD in black patients.

Purpose: To evaluate the safety and efficacy of the 25-gauge transconjunctival vitrectomy system for a variety of vitreoretinal surgery indications at short-term follow-up., Methods: Retrospective study of consecutive interventional cases that underwent surgery performed by one surgeon using the Alcon 25-Gauge vitrectomy system, in Bordeaux University Hospital, from September 2004 to May 2006. Indications were epiretinal macular membrane (72 eyes), macular hole (24 eyes), and other diseases (14 eyes)., Results: One hundred and ten eyes of 105 consecutive patients underwent surgery. None required conversion to 20-gauge vitrectomy or wound suture. One iatrogenic retinal break occurred intraoperatively. Two transient wound leaks, seven cases of hypotonia, one of chronic endophthalmitis, one of rhegmatogenous retinal detachment, one of retinal break, two recurrent intravitreal hemorrhages, and six cases of hypertonia were noted postoperatively. Three eyes required additional surgery. Mean overall visual acuity improved from 0.691 +/- 0.465 logMAR preoperatively to 0.476 +/- 0.492 logMAR at 1 month (p<0.0001). Visual acuity improvement was statistically significant for eyes with macular epiretinal membrane (p<0.0001) and macular hole (p=0.0158). The macular hole closure rate was 87.5%. Mean operative time was 25.91+/-10.94 min. Mean follow-up was 13.32+/-18.1 weeks. Thirteen eyes developed cataracts during the follow-up period., Conclusion: Vitrectomy with the 25-Gauge system appears to be relatively safe and particularly appropriate for macular surgery.