Posterior Pole Targeting
Posterior Pole Targeting - Related Videos
08:57
Introduction to the Power Pole Board
0 Views •
2023
Source: Ali Bazzi, Department of Electrical Engineering, University of Connecticut, Storrs, CT. DC/DC converters are power electronic converters that convert DC voltages and currents from a certain level to another level. Typically, voltage conversion is the main purpose of DC/DC converters and three main types of conversion exist in a single converter: stepping up, stepping down, and stepping up or down. Among the most common step-up converters are boost converters (Refer to this collections...
01:24
Pole and System Stability
0 Views •
2024
The transfer function is a fundamental concept representing the ratio of two polynomials. The numerator and denominator encapsulate the system's dynamics. The zeros and poles of this transfer function are critical in determining the system's behavior and stability. Simple poles are unique roots of the denominator polynomial. Each simple pole corresponds to a distinct solution to the system's characteristic equation, typically resulting in exponential decay terms in the system's response.
03:26
Isolating Short Posterior Ciliary Arteries: A Protocol to Excise Intact Short Posterior Ciliary Microvessels from Porcine Eye
0 Views •
2025
This video describes the protocol to isolate the short posterior ciliary arteries from the porcine eye. The isolated short posterior arteries are a suitable source for elucidating the molecular insights and protein profiles of the ocular blood vessels.
14:21
Dissection of Organizer and Animal Pole Explants from Xenopus laevis Embryos and Assembly of a Cell Adhesion Assay
0 Views •
Cited by 2 •
2007
This video demonstrates the technique used for preparation of organizer and animal pole explants from Xenopus laevis embryos, including the use of the eyebrow knife - a specialized dissection tool made of one's eyebrow. The protocol for assembling an adhesion assay is also given, which probes for the presence of key adhesion molecules present on the surface organizer or animal pole cells that are critical for proper development.
14:54
Rat Model of Photochemically-Induced Posterior Ischemic Optic Neuropathy
0 Views •
Cited by 2 •
2015
The goal of this protocol is to photochemically induce ischemic injury to the posterior optic nerve in rat. This model is critical to studies of the pathophysiology of posterior ischemic optic neuropathy, and therapeutic approaches for this and other optic neuropathies, as well as of other CNS ischemic diseases.
FAQs
Anatomical landmarks provide the reference framework for posterior pole targeting. The retina, macula, and optic disc identify distinct vision-critical regions, while controlled positioning aligns the instrument or delivery system with the selected site. This alignment reduces dependence on approximate placement and helps investigators direct imaging, sampling, or treatment toward the structure under study.
Controlled positioning matters because small alignment errors can shift an instrument or delivery system away from the intended retinal site. By maintaining alignment with the relevant anatomical landmark, the technique can limit exposure of surrounding tissue. That precision is especially important when experiments compare localized effects, examine vulnerable structures, or evaluate interventions intended for a defined posterior region.
Target selection depends on the scientific question rather than treating the posterior pole as a single uniform site. Investigators may align with the retina generally or with the macula or optic disc specifically. Naming the intended landmark clarifies where imaging, sampling, or delivery should occur and supports consistent comparison between experiments focused on different retinal structures.
Accuracy depends on two linked factors: recognition of the relevant anatomical landmark and control of instrument or delivery-system positioning. If either is inconsistent, imaging, sampling, or administration may occur at a different retinal location than intended. Standardizing these elements improves experimental consistency and makes observed disease-related or treatment-related changes easier to interpret.
A basic workflow begins by identifying the posterior structure relevant to the experiment, such as the retina, macula, or optic disc. The operator then uses that landmark to align the imaging, sampling, or therapeutic system and maintains controlled positioning during the procedure. The resulting approach connects the chosen site with the intended measurement or intervention.
The required setup depends on the intended use, because posterior pole targeting can support imaging, sampling, or therapeutic delivery. In each case, the central components are an instrument or delivery system, a way to identify the relevant anatomical landmark, and controlled positioning. This flexible arrangement allows the same targeting principle to support different biological techniques without implying identical equipment.
Researchers can apply this approach to studies of retinal disorders, drug delivery, gene-based therapies, and regenerative strategies. Targeting helps connect a specific intervention or observation with vision-critical tissue, including the retina, macula, or optic disc. That localization is useful when the study seeks to examine disease-related changes or evaluate effects intended for a defined retinal region.
Successful targeting can improve experimental consistency and reduce off-target effects, making results more closely reflect the intended retinal site. In imaging, it supports focused observation of disease-related changes; in sampling or delivery, it helps associate collected material or therapeutic exposure with the selected structure. These outcomes strengthen interpretation in ophthalmic research.