Vitreous Core Aspiration
Vitreous Core Aspiration - Related Videos
05:05
Dissection of Human Vitreous Body Elements for Proteomic Analysis
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04:41
Whole Vitreous Humor Dissection for Vitreodynamic Analysis
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02:39
Evisceration of Mouse Vitreous and Retina for Proteomic Analyses
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The dissection technique illustrates evisceration of the vitreous, retina, and lens from the mouse eye, separation by centrifugation, and characterization with protein assays.
02:10
The Nucleosome Core Particle
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2020
Nucleosomes are the DNA-histone complex, where the DNA strand is wound around the histone core. The histone core is an octamer containing two copies of H2A, H2B, H3, and H4 histone proteins. The paradox Nucleosomes, paradoxically, perform two opposite functions simultaneously. On the one hand, their main responsibility is to protect the delicate DNA strands from physical damage and help achieve a higher compaction ratio. While on the other hand, they must allow polymerase enzymes to access DNA...
09:26
Preparation and Using Phantom Lesions to Practice Fine Needle Aspiration Biopsies
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Practicing of fine needle aspiration biopsies (FNAB) by trainees is relatively challenging, due to the lack of an easily available, appropriate lesion. Preparation of an AV phantom lesion for practicing the FNAB procedure and mastering proficiency is relatively easy.
FAQs
The vitreous cutter coordinates controlled suction with cutting so material can be aspirated through a small ocular instrument. Infusion simultaneously replaces removed volume and helps maintain intraocular pressure. This coordinated action allows the surgeon to remove targeted vitreous while preserving the intended stability of the eye during posterior-segment surgery.
Selective removal helps reduce unnecessary disturbance to nearby vitreous structures and the retina. This matters because abnormal vitreous attachments can create traction, or pulling forces, on the retina. By focusing aspiration on the central vitreous, the technique can improve surgical access while addressing traction-related mechanical problems more selectively.
Vitreous may be liquefied or gelled, and either form can be aspirated with the vitreous cutter during appropriate microsurgical treatment. The instrument combines cutting with suction rather than relying on suction alone. This pairing supports controlled removal across different vitreous consistencies and helps limit disruption while the surgeon works in the posterior segment.
Yes. Aspirated intraocular material can be collected as a sample for diagnostic analysis when the clinical problem requires more than surgical access. This creates a link between treatment and investigation: the same microsurgical approach can help clear the operative field while supplying vitreous material for evaluation of an underlying intraocular disorder.
The procedure uses a vitreous cutter, controlled aspiration, and infusion during vitrectomy. The cutter applies suction and cutting to remove selected vitreous through a small ocular instrument, while infusion maintains the eye’s volume and pressure. Together, these components support controlled microsurgical removal and access to structures in the posterior segment.
Surgeons may use the technique when posterior-segment disease requires removal of central vitreous or improved access to the retina. The overview identifies vitreous hemorrhage, retinal detachment, infection, and other disorders requiring posterior-segment surgery as relevant settings. Its value depends on combining tissue removal with management of the underlying surgical problem.
Vitreous Core Aspiration can provide clearer access to the retina, reduce traction associated with abnormal vitreous attachments, and obtain intraocular samples for diagnostic analysis. These outcomes support both therapeutic and investigative goals in ophthalmic surgery. The approach is therefore relevant when surgeons must address mechanical vitreous effects, retinal access, or diagnostic uncertainty.