Since the initial report on pars plana vitrectomy (PPV) for macular holes in 1991 by Kelly and Wendell [1], vitreous surgery has been established as a standard treatment for macular holes. The main goal of surgical management is removing tangential and anterior–posterior traction around the hole and immobilization and connection of hole edges. Therefore posterior hyaloid, the ILM, and epiretina...

The natural vitreous is a transparent, gelatinoid structure occupying four-fifths of the volume of the eye. It has a thin, membrane-like structure corresponding to the vitreous cortex that extends from the ora serrata to the posterior pole.1 It is somewhat spherical but slightly flattened meridionally, and it has a cup-shaped depression in its anterior side. It consists of about 99% water by we...

BACKGROUND To characterize the causative pathogens and the visual outcomes among patients with endophthalmitis at a large referral center in northeastern Thailand. METHODS All cases of infectious endophthalmitis treated between 1983 and 2007 were reviewed retrospectively. The patient data - including age, sex, history of ocular injuries, previous treatment and duration of the symptoms - were ...

PURPOSE To evaluate the clinical features and investigate their relationship with visual function in Japanese patients with acute zonal occult outer retinopathy (AZOOR). METHODS Fifty-two eyes of 38 Japanese AZOOR patients (31 female and 7 male patients; mean age at first visit, 35.0 years; median follow-up duration, 31 months) were retrospectively collected: 31 untreated eyes with good visua...

purpose: to investigate the incidence, mechanisms, characteristics, and visual outcomes of traumatic wound dehiscence following keratoplasty. methods: medical records of 32 consecutive patients with traumatic globe rupture following keratoplasty who had been treated at our center from 2001 to 2009 were retrospectively reviewed. results: the study population consisted of 32 eyes of 32 patients i...

Purpose. To investigate if there is a prognostic implication of the presence of cellular debris in the anterior vitreous in patients with Behçet's disease (BD) without any ocular symptoms. Methods. One hundred and twenty eyes of 60 patients with BD were included in the study. The eyes were divided into two groups according to the presence of cellular debris in the anterior vitreous. The first g...

Aims—Viral uveitis and retinitis, usually caused by herpesviruses, are common in immunosuppressed patients. The diagnosis of viral anterior uveitis and retinitis is usually clinical. The polymerase chain reaction (PCR) has been used for the diagnosis of some viral infections, especially those caused by herpesviruses. This paper reports the use of PCR in the diagnosis of viral retinitis in vitre...

PURPOSE To asses the correlation between ocular components (axial length, anterior segment length, corneal power, vitreous length and equivalent power of the eye) and refractive error in eyes with higher and lower ametropia of subjects with anisometropia. METHODS An analytical survey was carried out in 68 patients with anisometropia of two or more diopters, assisted at the Ophthalmological Cl...

PURPOSE To investigate the possibility of using polylactic acid (PLA) as a surgical adjuvant for visualizing the vitreous body during vitrectomy. METHODS After a core vitrectomy, 1 mL of PLA suspension was injected into the rabbit vitreous in two groups: group A, 2.5% PLA (n = 5), and group B, 1% PLA (n = 9). Vehicle injection instead of PLA was used as a control (group C, n = 5). The clinica...

PURPOSE Results from this and other laboratories strongly suggest that differences in the properties of the ocular media that bathe cells in the anterior and posterior regions of the lens contribute to its normal growth patterns and polarity. The aim of this study was to compare the effects of aqueous and vitreous on the morphology of lens epithelial explants, with particular attention to chang...