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Related Concept Videos

Muscles of the Eye01:20

Muscles of the Eye

The muscles of the eye are sophisticated structures that control eye movement and focus, allowing for the precise and rapid adjustments necessary for vision. The human eye is controlled by ten muscles — six extraocular muscles, three intraocular muscles, and one primary eyelid retractor muscle.
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The six extraocular muscles surround the eyeball and control its movements. They are responsible for a wide range of eye motions, including looking up, down, left, right, and rotating...
Accessory Structures of the Eye01:17

Accessory Structures of the Eye

Optical perception, or vision, is an extraordinary sense dependent on converting light signals received via the ocular organs. These organs, known as eyes, are securely positioned within the bony cavities of the skull, called orbits. The orbits serve a dual purpose: a protective shield for the ocular globes and a stable attachment point for the soft ocular tissues. The eye's external protective mechanisms include the eyelids, which are edged with lashes that act as a barrier against foreign...
Cranial Nerves: Types Part I01:14

Cranial Nerves: Types Part I

Cranial nerves are responsible for transmitting motor and sensory information between the brain and various parts of the body. There are twelve pairs of cranial nerves, with the first six being essential in sensory perception, motor control, and autonomic functions related to the head and neck.
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Visual Agnosia

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Mechanism of Ciliary Motion01:05

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The ciliary structures were first seen in 1647 by Antonie Leeuwenhoek while observing the protozoans. In lower organisms, these appendages are responsible for cell movement, while in higher organisms, these appendages help in the movement of the extracellular fluids within the body cavities.
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Mechanism of Ciliary Motion01:05

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The ciliary structures were first seen in 1647 by Antonie Leeuwenhoek while observing the protozoans. In lower organisms, these appendages are responsible for cell movement, while in higher organisms, these appendages help in the movement of the extracellular fluids within the body cavities.
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Related Experiment Video

Updated: Jun 13, 2026

Ocular Kinematics Measured by In Vitro Stimulation of the Cranial Nerves in the Turtle
10:49

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Published on: June 2, 2018

[Non-oculomotor eye involvement in Moebius sequence].

R Michels, V Sturm, M N Menke

    Der Ophthalmologe : Zeitschrift Der Deutschen Ophthalmologischen Gesellschaft
    |May 11, 2010
    PubMed
    Summary
    This summary is machine-generated.

    Moebius sequence is a rare congenital condition impacting eye movement and vision. Early ophthalmological evaluation is crucial for managing sight-threatening ocular complications.

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    Area of Science:

    • Ophthalmology
    • Genetics
    • Neurology

    Background:

    • Moebius sequence is a rare congenital neurological disorder.
    • It primarily affects the cranial nerves, leading to facial paralysis and eye movement abnormalities.

    Purpose of the Study:

    • To highlight the significant ocular manifestations of Moebius sequence.
    • To emphasize the importance of regular ophthalmological follow-up for affected individuals.

    Main Methods:

    • Review of existing literature on Moebius sequence and its ocular findings.
    • Analysis of case studies detailing ophthalmological complications.

    Main Results:

    • Ocular involvement is a common feature of Moebius sequence.
    • Potential complications include strabismus, ptosis, and refractive errors.
    • These ocular issues can be sight-threatening if not managed.

    Conclusions:

    • Moebius sequence requires comprehensive management, including specialized eye care.
    • Prompt and regular ophthalmological assessment is essential for preserving vision in patients with Moebius sequence.