Estimating the volume of the vitrectomized space using axial length: a guideline.

Purpose: The volume of the vitreous chamber varies with the size of the eye. The space created in the vitreous cavity by a vitrectomy is called the vitrectomized space. The volume of the vitrectomized space is strongly correlated with the axial length of the eye.

Effect of Sleeping Position on the Retinal Nerve Fiber Layer in Individuals with Glaucoma.

Aims And Background: To evaluate the effect of sleeping in the lateral decubitus position on the average thickness of the retinal nerve fiber layer (RNFL) in the peripapillary region of the optic nerve since the effect of posture on intraocular pressure (IOP) and glaucoma progression is not yet sufficiently understood.

Materials And Methods: A cross-sectional observational study was carried out with 40 volunteers who preferably slept in a right lateral decubitus (RLD) (RLD group = 20) and left lateral decubitus (LLD) (LLD group = 20) position. IOP was measured in both eyes, first in the sitting position and again after 10 minutes in a supine position, right lateral, and LLD, respectively.

Influence of the dilution method on the intraocular duration of C3F8 in vitrectomy for macular hole: a randomized clinical trial.

Purpose: To compare the injection of small amounts of undiluted C3F8 with the traditional gas injection in vitrectomy for macular hole treatment.

Methods: This clinical trial included 26 individuals divided into two groups. Group 1 received an intravitreal injection of 0.

Understanding political divisiveness using online participation data from the 2022 French and Brazilian presidential elections.

Digital technologies can augment civic participation by facilitating the expression of detailed political preferences. Yet, digital participation efforts often rely on methods optimized for elections involving a few candidates. Here we present data collected in an online experiment where participants built personalized government programmes by combining policies proposed by the candidates of the 2022 French and Brazilian presidential elections.

Firework-related ocular trauma in Pernambuco, Brazil.

Purpose: This study aimed to describe the demographic and clinical characteristics of victims of fireworkrelated ocular trauma treated at the ophthalmologic emergency de partments of two reference centers in Pernambuco, Brazil, and to identify risk factors related to poor visual prognosis.

Methods: We retrospectively evaluated the medical records of patients admitted in emergency departments with a report of firework-related trauma between January 2012 and December 2018. Data collected included patient's age, sex, place of origin, month and year of the accident, ocular structures affected, characteristics of the injuries, and type of treatment that patients received.

Brow Lift Through The Upper Blepharoplasty Incision: Prospective Clinical Study.

Background: Eyebrow tail ptosis is usually associated with dermatochalasis of the upper eyelid, and it is necessary to treat them together. For these associated procedures to be incorporated as a routine in upper eyelid surgeries, they should preferably be less invasive with consequent fewer complications.

Objective: We describe a minimally invasive technique for the correction of mild-to-moderate eyebrow tail ptosis corrected together with superior dermatochalasis through the blepharoplasty incision.

Comparison of Retinal Structure Using Optical Coherence Tomography Angiography between Persons with and without HIV Infection.

HIV retinal microangiopathy is an important predictor for increased risk of mortality. Optical coherence tomography angiography (OCTA) can investigate microvascular changes resulting from retinal diseases. Study included 25 persons with HIV and 25 healthy persons.

Proteinuria in early referral to spectral domain optical coherence tomography for macular edema detection in type 2 diabetes individuals: results from the Brazilian diabetes study.

Background: Measurement of retinal thickness by optical coherence tomography (OCT) shows higher diagnostic accuracy for diabetic macular edema (DME) than fundus photography alone. The expanding gap between the rising number of type 2 diabetes (T2D) individuals and the availability of OCT devices demands a targeted selection of individuals at higher risk of DME who would benefit the most from early referral. We sought to appraise if proteinuria should be considered in a targeted referral of T2D individuals to OCT examination.

Association between axial length and level of education in elderly patients with cataracts unexposed to electronic devices in the first two decades of life.

Purpose: To determine whether the axial length is associated with the education level in elderly patients with cataracts who were not exposed to electronic devices in the first two decades of life.

Methods: This cross-sectional study was conducted in elderly patients with cataracts in Campinas, Brazil. Patients were divided into 2 groups: Group 1 included those who completed, at most, elementary school (including the illiterate and those who partially or totally attended elementary school), which corresponded to 12 years of schooling; Group 2 included, at least, high school graduates (including those who completed high school and those who partially or fully attended university).

Comparison Between Nylon and Polyglactin Sutures in Pediatric Cataract Surgery: A Randomized Controlled Clinical Trial.

To compare the performance of nylon sutures to that of polyglactin sutures in pediatric patients undergoing cataract surgery. University of Campinas (UNICAMP), Campinas, São Paulo, Brazil A prospective, randomized, partially masked, single-site clinical trial. (https://clinicaltrials.

TXNRD2 (rs35934224) CT genotype as possible protective marker for primary open-angle glaucoma in a Brazilian population.

Purpose: To investigate the association of the single-nucleotide polymorphism rs35934224 in the TXNRD2 gene with primary open-angle glaucoma in a Brazilian population.

Methods: This was a cross-sectional study conducted to verify the association between the rs35934224 TXNRD2 (thioredoxin reductase 2) and primary open-angle glaucoma in a population from the Northeast region of Brazil. A total of 184 individuals were enrolled, including 94 with primary open-angle glaucoma (45 men and 49 women) and 94 controls (40 men and 54 women) from the Recife Eye Institute.

Optical coherence tomography angiography: microvascular alterations in diabetic eyes without diabetic retinopathy.

Purpose: To describe microvascular changes in the maculas of individuals with type 2 diabetes observed on optical coherence tomography angiography (OCTA) images. We compared the maculas of diabetic subjects without diabetic retinopathy with those of healthy subjects and correlated the findings with the clinical profiles of diabetic subjects.

Methods: One eye each of 30 patients with diabetes and 30 healthy individuals were examined.

Role of nicergoline in corneal wound healing in diabetic rats.

Background: To investigate the effect of nicergoline on the rate of complete corneal ulcer reepithelialization (CCUR) in diabetic rats with diabetic keratopathy.

Methods: Forty-eight streptozotocin-induced diabetic rats were randomly divided into two groups. The experimental group (n = 24) received nicergoline (10 mg.

Evaluation of the retinal vasculature of patients with branch retinal vein occlusion using optical coherence tomography angiography.

Purpose: To evaluate vascular density in super-ficial and deep capillary plexuses of the retina, measured using optical coherence tomography angiography in patients with branch retinal vein occlusion. Affected eyes were compared with the contralateral eye of the same patient and both were compared with normal eyes.

Methods: A cross-sectional study including 16 previously untreated patients with branch retinal vein occlusion.

Use of axial length to estimate the vitreous chamber volume in pseudophakic.

Purpose: To develop an equation for estimating the vitreous chamber volume in pseudophakic patients based on the axial length of the eye.

Methods: A consecutive series of patients who underwent vitrectomy surgery for a macular hole or an epiretinal membrane were enrolled. The inclusion criteria were as follows: having pseudophakia, being older than 50 years, and having eyes with axial length ranging from 21 to 26 mm.

Subfoveal perfluorocarbon liquid removal by peeling of internal limiting membrane, without retinotomy.

Perfluorocarbon liquid has been widely used during vitreoretinal operations. Subretinal retention is a rare intraoperative complication, but even small quantities can damage the macular structure and function, and no standard treatment has been established. We encountered a 43-year-old woman who presented a retained subfoveal bubble after a vitreoretinal operation due to primary rhegmatogenous retinal detachment.

Effect of intravitreal dexamethasone solution on the reduction of macular thickness in pseudophakic diabetic patients in a public hospital in Brazil: a randomized clinical trial.

Purpose: To determine the effect of short-term 4 mg/mL dexamethasone solution treatment in diabetic macular edema (DME).

Patients And Methods: Twenty-seven pseudophakic diabetic patients with visual impairment caused by DME were randomized to receive 0.01 mL (40 μg), 0.

Determining Optic Nerve Cupping Using Optical Coherence Tomography (OCT) Versus a New Electronic Mobile Device.

Purpose: We present a new device that may aid in glaucoma screening. The vertical cup-to-disc ratio (CDR) obtained from a new electronic mobile device (EMD) was compared with that obtained from a spectral-domain optical coherence tomography. In addition, results from examiner's evaluations were compared with the results mentioned above.