Uveal Tract

 🧠 Uveal Tract 


The uveal tract is the middle pigmented and vascular layer of the eye, located between the sclera (outer layer) and the retina (inner layer).


🔍 Parts of the Uveal Tract:


1. Iris

  • The colored part of the eye

  • Controls pupil size and thus regulates the amount of light entering the eye


2. Ciliary Body

  • Located behind the iris

Functions:

  • Aqueous humor production (fluid in the front of the eye)

  • Accommodation (changes lens shape for near vision via ciliary muscle)


3. Choroid

  • Vascular layer between the sclera and retina

  • Supplies oxygen and nutrients to the outer retina


🧬 Functions of the Uveal Tract:

  • Provides nutrition to the eye (especially the retina)

  • Produces aqueous humor

  • Controls light entry via pupil constriction/dilation

  • Helps with focus (accommodation)

  • Plays a role in immune response within the eye


⚠️ Clinical Importance:


Diseases of the uveal tract are collectively called uveitis


  • Tumors can occur in any part of the uveal tract (e.g., choroidal melanoma)


📌 Mnemonic to Remember Parts:


"I See Clearly" → Iris, Ciliary body, Choroid


For further process click https://medorbis.ai

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