Ophthalmic Artery
Ophthalmic Artery - Related Videos
01:23
Ophthalmic Drug Delivery Systems
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2026
Ophthalmic drug delivery faces major limitations due to poor absorption across the corneal membrane. This process is primarily driven by diffusion and is influenced by two main factors: the physicochemical properties of the drug and tear drainage. Most ophthalmic drugs, such as pilocarpine, epinephrine, atropine, and local anesthetics, are weak bases. They are typically formulated at an acidic pH to enhance chemical stability. However, this leads to high ionization, reducing their ability to...
02:37
Ophthalmic Drug Delivery for Noninvasive Neuromodulation in a Mouse Model
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2025
Source: Zhan, J., et al. Non-invasive Strategies for Chronic Manipulation of DREADD-controlled Neuronal Activity. J. Vis. Exp. (2019)This video demonstrates a non-invasive ophthalmic drug delivery method for targeted neuromodulation. The drug is delivered via eye drops, absorbed into the circulation, crosses the blood-brain barrier, and activates specific neuronal receptors.
07:21
Measurement of Pulmonary Artery Pressure in Rats Using Right Heart Catheterization
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2025
The protocol provides a detailed introduction to the experience of using the right heart catheterization method to detect pulmonary artery pressure in rats, which will help to obtain accurate data more efficiently and improve the success rate of the experiment. This method also improves the reproducibility of experiments across different laboratories.
06:57
Arterial Line Placement
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2023
Source: Sharon Bord, MD, Department of Emergency Medicine, The Johns Hopkins University School of Medicine, Maryland, USA When monitoring patients, it is important to obtain values that are accurate and reliable. Blood pressure monitoring is one of the essential vital signs, and for a majority of patients, measuring it utilizing non-invasive techniques provides accurate values. However, there are situations in which the blood pressure requires more exact, specific, and reliable measurements.
05:47
Modified Technique for Coronary Artery Ligation in Mice
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Cited by 8 •
2013
The surgical procedure used to induce experimental myocardial infarction in mice begins with left thoracotomy between the third and the fourth ribs in order to visualize the anterior surface of the heart and left lung. The left coronary artery is ligated, the chest is closed and the mouse is allowed to recover spontaneously.
FAQs
The branching pattern shows how one arterial route is organized into specialized supply pathways. After the vessel enters the orbit, branches direct blood toward the retina, choroid, extraocular muscles, and other orbital tissues. This organization links vascular anatomy with tissue demands, allowing biology students to relate vessel position and branching to the eye’s structure and visual function.
These branches indicate distinct targets rather than interchangeable vessels. The central retinal artery is associated with retinal supply, ciliary arteries with the choroid, and muscular arteries with the extraocular muscles. Comparing them helps distinguish the vascular support of sensory tissue, vascular tissue surrounding the retina, and the muscles that position the eye.
The ophthalmic artery’s usual origin from the internal carotid artery places ocular circulation within a larger arterial system that also relates to intracranial blood flow. Its passage through the optic canal beside the optic nerve is therefore anatomically significant: it connects the study of orbital vessels with the spatial relationships important in the visual system.
Visual physiology depends on the tissues that receive and process visual information. By supplying the retina and choroid, the arterial network supports ocular structures directly involved in vision; supply to orbital tissues and extraocular muscles supports the surrounding apparatus. This makes vascular anatomy a useful bridge between circulation, eye structure, and visual function.
A focused study should identify the vessel’s usual origin, route through the optic canal, relationship with the optic nerve, and major branches within the orbit. It should then connect each named branch with its principal tissue targets, including the retina, choroid, extraocular muscles, and surrounding orbital tissues. This approach organizes anatomy around both pathways and functions.
Knowledge of the ophthalmic artery is relevant when a procedure or investigation concerns retinal or intracranial blood flow. Its connection to the internal carotid system and its branches within the orbit provide anatomical context for understanding how blood is directed toward ocular tissues. This background helps link orbital anatomy with vascular assessment and procedures involving visual or intracranial circulation.
Studying this vessel connects arterial anatomy with visual physiology, orbital anatomy, and vascular disorders. It also places retinal circulation in the context of intracranial blood flow. In biology, this integrated perspective helps explain why the eye must be considered both an organ of vision and part of a broader vascular system supported by coordinated arterial pathways.