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  2. What To Know if You're Constantly Getting Headaches Behind ...

    www.aol.com/know-youre-constantly-getting...

    What Headaches Behind Your Eyes Mean, According to Neurologists. There can be several causes of headaches behind your eyes. They include: Vision and eye problems.

  3. Posterior segment of eyeball - Wikipedia

    en.wikipedia.org/wiki/Posterior_segment_of_eyeball

    The posterior segment or posterior cavity [1] is the back two-thirds of the eye that includes the anterior hyaloid membrane and all of the optical structures behind it: the vitreous humor, retina, choroid, and optic nerve. [2]

  4. Refractive error - Wikipedia

    en.wikipedia.org/wiki/Refractive_error

    When an eye focuses light correctly on to the retina when viewing distant objects, this is called emmetropia or being emmetropic. This means that the refractive power of the eye matches what is needed to focus parallel rays of light onto the retina. A distant object is defined as an object located beyond 6 meters (20 feet) from the eye.

  5. Vitreous body - Wikipedia

    en.wikipedia.org/wiki/Vitreous_body

    The vitreous body (vitreous meaning "glass-like"; from Latin vitreus 'glassy', from vitrum 'glass' and -eus) is the clear gel that fills the space between the lens and the retina of the eyeball (the vitreous chamber) in humans and other vertebrates.

  6. Posterior chamber of eyeball - Wikipedia

    en.wikipedia.org/wiki/Posterior_chamber_of_eyeball

    The posterior chamber is a narrow space behind the peripheral part of the iris, and in front of the suspensory ligament of the lens and the ciliary processes.The posterior chamber consists of small space directly posterior to the iris but anterior to the lens.

  7. Uvea - Wikipedia

    en.wikipedia.org/wiki/Uvea

    The uvea (/ ˈ j uː v i ə /; [1] derived from Latin: uva meaning "grape"), also called the uveal layer, uveal coat, uveal tract, vascular tunic or vascular layer, is the pigmented middle layer of the three concentric layers that make up an eye, precisely between the inner retina and the outer fibrous layer composed of the sclera and cornea.

  8. Globe (human eye) - Wikipedia

    en.wikipedia.org/wiki/Globe_(human_eye)

    The globe of the eye, or bulbus oculi, is the frontmost sensory organ of the human ocular system, going from the cornea at the front, to the anterior part of the optic nerve at the back. More simply, the eyeball itself, as well as the ganglion cells in the retina that eventually transmit visual signals through the optic nerve. [1]

  9. These are the pedophile symbols you need to know to protect ...

    www.aol.com/news/2016-04-26-these-are-the...

    In March, a mother was horrified to find a pedophile symbol on a toy she bought for her daughter. Although the symbol was not intentionally placed on the toy by the company who manufactured the ...