Pars ciliaris retinae

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Pars ciliaris retinae is a part of the retina located in the eye. It is specifically the anterior portion of the retina that extends from the ora serrata to the ciliary body. This region is non-photosensitive, meaning it does not contain the photoreceptor cells that are responsible for detecting light and color.

Anatomy

The pars ciliaris retinae is situated in the anterior segment of the eye. It is continuous with the pars plana and the pars plicata, which are parts of the ciliary body. The ciliary body itself is a ring of tissue that includes the ciliary muscle and the ciliary processes, playing a crucial role in the production of aqueous humor and the accommodation of the lens.

Function

While the pars ciliaris retinae does not participate in the direct process of vision, it is involved in the overall health and function of the eye. The cells in this region contribute to the production of the vitreous humor, a gel-like substance that fills the vitreous chamber of the eye. This helps maintain the eye's shape and provides a medium through which light can pass to reach the photosensitive parts of the retina.

Clinical Significance

The pars ciliaris retinae can be involved in various ocular diseases and conditions. For instance, it may be affected in cases of uveitis, an inflammation of the uvea, which includes the ciliary body. Additionally, surgical procedures involving the anterior segment of the eye, such as cataract surgery, must take care to avoid damaging this region to prevent complications.

Related Structures

• Retina
• Ora serrata
• Ciliary body
• Pars plana
• Pars plicata
• Photoreceptor cells
• Aqueous humor
• Vitreous humor
• Vitreous chamber
• Uvea
• Uveitis
• Cataract surgery

See Also

• Eye anatomy
• Ocular diseases
• Retinal structure