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  2. Punctum - Wikipedia

    en.wikipedia.org/wiki/Punctum

    Blind spot (vision), or punctum cecum, the blind spot in human vision corresponding to the location of the optic disk; Erb's point (neurology) or punctum nervosum, a nerve point in the human neck; Imperforate lacrimal punctum, a congenital disorder of dogs

  3. Fovea centralis - Wikipedia

    en.wikipedia.org/wiki/Fovea_centralis

    The fovea centralis is a small, central pit composed of closely packed cones in the eye.It is located in the center of the macula lutea of the retina. [1] [2]The fovea is responsible for sharp central vision (also called foveal vision), which is necessary in humans for activities for which visual detail is of primary importance, such as reading and driving.

  4. Blind spot (vision) - Wikipedia

    en.wikipedia.org/wiki/Blind_spot_(vision)

    Distribution of rods and cones along a line passing through the fovea and the blind spot of a human eye [1]. A blind spot, scotoma, is an obscuration of the visual field.A particular blind spot known as the physiological blind spot, "blind point", or punctum caecum in medical literature, is the place in the visual field that corresponds to the lack of light-detecting photoreceptor cells on the ...

  5. Optic disc - Wikipedia

    en.wikipedia.org/wiki/Optic_disc

    The optic disc or optic nerve head is the point of exit for ganglion cell axons leaving the eye. Because there are no rods or cones overlying the optic disc, it corresponds to a small blind spot in each eye. The ganglion cell axons form the optic nerve after they leave the eye.

  6. Why Did Aemond Burn Sharp Point in the ‘House of the ... - AOL

    www.aol.com/lifestyle/why-did-aemond-burn-sharp...

    Feeling enraged and hopeless now that Rhaenyra’s (Emma D’Arcy) new dragons pose more of a threat, Aemond takes Vhagar for a ride and sends a castle named Sharp Point up in flames as people ...

  7. Nib (pen) - Wikipedia

    en.wikipedia.org/wiki/Nib_(pen)

    The pointed nib is flexible and comes to a sharp point rather than a broad edge. Thick and thin strokes are achieved by varying the amount of pressure on the nib. Thick lines are created on downstrokes by pushing down on the nib, causing the nib tines to splay and allowing more ink to flow through the widened slit onto the writing surface.