Publications by authors named "Acacio Alves Souza Lima-Filho"
Objective: To assess the number of eyes with silicone oil in the vitreous after intravitreal injection.
Methods: This cross-sectional, comparative study was divided into 2 groups: (1) treatment-eyes subjected to antiangiogenic therapy; (2) control-no history of intravitreal injection. Subjects were assessed regarding age, gender, clinical diagnosis, lens status, visual acuity and number of previous intravitreal injections.
Inflammatory Reaction After Aflibercept Intravitreal Injections Associated With Silicone Oil Droplets Released From Syringes: A Case-Control Study.
Ophthalmic Surg Lasers Imaging Retina
May 2019
Background And Objective: To determine factors causing inflammation after intravitreal aflibercept injections.
Patients And Methods: This case-control study included aflibercept-treated eyes with inflammation post-injection and aflibercept-treated control eyes. Medical records were analyzed to identify contributing factors.
Release of silicone oil droplets from syringes.
Int J Retina Vitreous
January 2019
Background: Intravitreal silicone oil droplets have been found in the vitreous. The aim of this study is to compare the rates of silicone oil released by different brands of commonly used syringes for intravitreal injection after agitation by flicking.
Methods: Three models of two brands of syringes were analyzed for their rates of silicone oil release: Saldanha Rodrigues (SR) 1 mL insulin syringe (SR, Brazil, syringe 1), Becton-Dickinson (BD) Plastipak 1 mL insulin syringe (Brazil, syringe 2), and BD Safety-Glide 1 mL insulin syringe (USA, syringe 3).
Purpose: To classify and quantify anthocyanins in a vital dye extracted from the acai fruit (), adjust pH and osmolarity, and perform lyophilization to develop a new chromovitrectomy dye.
Methods: Three dye concentrations 10%, 25%, and 35% (equivalent to 100, 250, and 350 mg of lyophilized acai fruit pulp extract samples) were evaluated when diluted in 1 ml of phosphate-buffered solution (pH 7 and 300 mOsm). The dye was analyzed by mass spectrometry and high-performance liquid chromatography (HPLC) to identify and quantify anthocyanins molecules.
Purpose: Evaluate toxicity of acai fruit (Euterpe oleracea) dye concentrations in a rabbit model.
Methods: Rabbits were injected intravitreously with 10%, 25%, and 35% acai dye concentrations. Control eyes received balanced salt solution (BSS).
Aim: The goals of this study were to determine the potential for use of the natural anthocyanins from the açai fruit (Euterpe oleracea) during vitreoretinal surgery and the ideal physicochemical properties of the dye.
Methods: We evaluated the color variations of the dye at different pHs and osmolarities with or without the use of mordants as a potential new tool for internal limiting membrane peeling. The extracts of anthocyanin from the açai fruit were analyzed by spectrophotometry to determine the degree of color variations associated with various pHs and osmolarities.
Posterior hyaloid detachment and internal limiting membrane peeling assisted by anthocyanins from acai fruit (Euterpe oleracea) and 10 other natural vital dyes: experimental study in cadaveric eyes.
Retina
January 2013
Purpose: The purpose of this study was to determine whether natural dyes facilitate posterior hyaloid detachment (posterior vitreous detachment [PVD]) and retinal internal limiting membrane (ILM) peeling in human eyes.
Methods: Open-sky vitrectomy with posterior hyaloid and ILM removal was performed in 86 human cadaveric eyes. After core vitrectomy, 11 different dyes were injected into the vitreous cavity to aid hyaloid detachment and ILM removal.
Purpose: To investigate the retinal biocompatibility of six novel vital dyes for chromovitrectomy.
Methods: An amount of 0.05 mL of 0.