نتایج جستجو برای: eye bank
تعداد نتایج: 219690 فیلتر نتایج به سال:
The spike activity of neurons was recorded from the dorsal bank of the superior temporal sulcus (area MSTd) of alert behaving macaque monkeys performing visual fixation or target tracking tasks, with the aim of studying the tuning features of these neurons with both the direction of slow eye movement and the position of gaze. One hundred thirty-two neurons were tested for several fixation point...
A number of extrastriate visual areas in the parieto-occipital cortex are known from single-cell recordings of the macaque monkey to be involved in the coding of eye-position signals in the brain. These are important for the accurate location of visual objects in extrapersonal space. It can be predicted that these areas will show increased activation during the performance of eye movements at h...
Shi, Dexiu, Harriet R. Friedman, and Charles J. Bruce. Deficits aminobutyric acid (GABA) agonist. The data presented here in smooth-pursuit eye movements after muscimol inactivation show that muscimol deactivation in FEFsem profoundly imwithin the primate’s frontal eye field. J. Neurophysiol. 80: 458– pairs SP eye movements. These reversible deficits in visually 464, 1998. To evaluate smooth-pu...
Objective: To evaluate the incidence of a software program package at Brazilian public eye care institutions through an online survey. The package is made up of the institutions’ websites, electronic medical records, regulatory assistance control system and the preoperative scheduling system. The aim is to analyze if this type of software facilitates the provisioning of eye care services, the p...
The purpose of this article is to examine outcomes of Descemet membrane endothelial keratoplasty (DMEK) performed with cornea bank (CB) prestripped tissue and surgeon stripped tissue (SST).This retrospective study examined subjects who underwent DMEK with CB or surgeon prepared tissue for Fuchs endothelial corneal dystrophy. Best-corrected visual acuity (BCVA), corneal thickness, endothelial ce...
PURPOSE Previously, human corneal stromal interlamellar cohesive strength in the horizontal meridian was shown to be twice as strong peripherally as centrally (approximately 2.90 x 10(-1) versus 1.40 x 10(-1) N/mm). In the current study, stromal samples excised from the vertical meridian were studied to determine if meridional differences also exist. Precise knowledge about corneal stromal stru...
PURPOSE To compare the big-bubble method using air and liquid as medium of separation for Descemet membrane endothelial keratoplasty (DMEK) lenticule preparation in an eye bank. METHODS Donor corneas (n=20) were immersed in liquid [tissue culture medium (TCM)]. Air and liquid was injected using a 25-gauge needle in the posterior stroma or as near to the stroma-Descemet membrane (DM) phase as ...
Background: The present study was conducted to the donor profile and assess trends of cornea donation. Methodology: This as a hospital based cross sectional at tertiary care centre in Central India for period 5 years. Data retrieved from 70 patients eye bank who filled form donation Eye our institution. Sociodemographic donors, cause death time since recorded. Source information regarding corne...
Descemet membrane endothelial keratoplasty (DMEK) is a corneal surgical technique which selectively replaces the damaged posterior part of the cornea with a healthy donor graft retaining the rest of the tissue intact. There is a need to validate and standardize the donor tissue before grafting due to certain issues that can lead to consequences such as graft failure due to poor endothelial cell...
The management of corneal ectasia is evolving, with intrastromal corneal ring segments playing an important role in delaying or eliminating the need for penetrating keratoplasty. This paper describes a modification in the implantation technique of intrastromal corneal ring segments that allows for coupling of the two segments with suture, affording more structural support.
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