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2. List of instruments used in ophthalmology - Wikipedia

   en.wikipedia.org/wiki/List_of_instruments_used...

   to keep the eyes open during any operation; light wire instrument Needle holders: holding the needle in position while applying sutures •Silcock's needle holder-do-; has a catch and is used for heavier gauge needles; used mainly for skin, muscle and corneal incisions •Arruga's needle holder

3. Orbitoclast - Wikipedia

   en.wikipedia.org/wiki/Orbitoclast

   The operation involved placing the pick behind the eye socket of the patient and breaking through the thin layer of bone found there by applying a hammer to the end of the pick and driving the instrument into the frontal lobes. The pick would then be swung medially and laterally to separate the frontal lobes from the thalamus. In 1948, Freeman ...

4. SkyCity - Wikipedia

   en.wikipedia.org/wiki/SkyCity

   SkyCity (originally known as the Eye of the Needle) [1] [2] was a revolving restaurant and bar situated atop the Space Needle in Seattle, Washington, United States. [ 3 ] [ 4 ] Description and history

5. Couching (ophthalmology) - Wikipedia

   en.wikipedia.org/wiki/Couching_(ophthalmology)

   A sharp instrument, such as a thorn or needle, is used to pierce the eye either at the edge of the cornea or the sclera, near the limbus. The opaque lens is pushed downwards, allowing light to enter the eye. Once the patients sees shapes or movement, the procedure is stopped.

6. Hypodermic needle - Wikipedia

   en.wikipedia.org/wiki/Hypodermic_needle

   Needles in common medical use range from 7 gauge (the largest) to 34 (the smallest). 21-gauge needles are most commonly used for drawing blood for testing purposes, and 16- or 17-gauge needles are most commonly used for blood donation, as the larger luminal cross-sectional area results in lower fluid shear, reducing harm to red blood cells ...

7. Nanoneedle - Wikipedia

   en.wikipedia.org/wiki/Nanoneedle

   The needles may also find a use in tip-enhanced Raman spectroscopy, a process in which molecular energy levels are measured by comparing the frequency of incident light with that of outgoing light. A sharp needle tip allows for a more precise examination of the sample, down perhaps to that of single molecules.