AAO 2: Chapter 2, The Eye

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AAO 2: Chapter 2, The Eye
2011-03-04 08:27:07
AAO Ophthalmology

Fundamentals and Principles of Ophthalmology
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  1. The anteroposterior diameter of the adult eye is ______.
    23-25 mm
  2. The average volume of the anterior chamber is ______.
    250 uL
  3. The average volume of the posterior chamber is ______.
    60 uL
  4. The total volume of the average adult eye is ______.
    approximately 6.5 - 7 ml
  5. The middle layer of the globe that is consist of the choroid, ciliary body and the iris. It is highly vascular and serves a nutritive and supportive function.
  6. It covers the posterior 4/5 of the surface of the globe, with an anterior opening for the cornea and posterior opening for the optic nerve.
  7. This capsule covers the sclera and rectus muscles anteriorly, and is also overlain by the bulbar conjunctiva. It fuses with the conjunctiva near the limbus.
    Tenon's capsule
  8. The thickest portion of the sclera is located at _________.
    Posterior pole around the optic nerve where it 1 mm thick
  9. The thinnest portion of the sclera is locater at ________.
    just behind the insertions of the rectus muscles (0.3 mm thin)
  10. It is the transition zone between the peripheral cornea and the anterior sclera.
  11. It is a circular spongework of connective tissue lined by trabeculocytes. The meshwork is roughly triangular in cross section, with the apex at Schwalbe's line and the base formed by the scleral spur and the ciliary body.
    Trabecular meshwork
  12. The uveal tract is firmly attached to the sclera at only 3 sites. What are these sites?
    • the scleral spur
    • the exit poits of the vortex veins
    • the optic nerve
  13. The ciliary body is 6-7 mm wide and consists of 2 parts:
    • pars plana (avascular)
    • pars plicata (richly vascularized) - consist of approximately 70 radial folds, the ciliary processes