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2. Pinhole occluder - Wikipedia

   en.wikipedia.org/wiki/Pinhole_occluder

   A pinhole occluder is an opaque disk with one or more small holes through it, used by ophthalmologists, orthoptists and optometrists to test visual acuity. The occluder is a simple way to focus light, as in a pinhole camera, temporarily removing the effects of refractive errors such as myopia. Because light passes only through the center of the ...

3. List of optometric abbreviations - Wikipedia

   en.wikipedia.org/wiki/List_of_optometric...

   Pinhole see Pinhole occluder and Visual_acuity#Legal_definitions: PHNI Pinhole No Improvement see Pinhole occluder and Visual_acuity#Legal_definitions: PHVA Pinhole Visual Acuity: PL Perception of light POH / PrOH Previous ocular history PPA Peri-papillary atrophy Pt Patient RAPD Relative afferent pupillary defect OD Right eye (oculus dexter) Ret.

4. Pinhole glasses - Wikipedia

   en.wikipedia.org/wiki/Pinhole_glasses

   Pinhole glasses, also known as stenopeic glasses, are eyeglasses with a series of pinhole-sized perforations filling an opaque sheet of plastic in place of each lens. Similar to the workings of a pinhole camera , each perforation allows only a very narrow beam of light to enter the eye which reduces the size of the circle of confusion on the ...

5. Pinhole (optics) - Wikipedia

   en.wikipedia.org/wiki/Pinhole_(optics)

   Wide-field micrograph of a damaged 80 μm pinhole Natural pinholes formed by tree leaves – Solar eclipse of August 21, 2017 in Washington state. A pinhole is a small circular hole, as could be made with the point of a pin. In optics, pinholes with diameter between a few micrometers and a hundred micrometers are used as apertures in optical ...

6. This Insect Has Super-Propulsive Pee - AOL

   www.aol.com/insect-super-propulsive-pee...

   Watch the Video. Click here to watch on YouTube. Sharpshooters may be small, but their pee is mighty — yes, you read that right. As you’ll see in this video, these small insects come with ...

7. Tony Hinchcliffe ‘Apologizes to Absolutely Nobody’ for Puerto ...

   www.aol.com/tony-hinchcliffe-apologizes...

   Comedian and “Kill Tony” podcast host Tony Hinchcliffe ignited a national firestorm with his appearance at Donald Trump’s Oct. 27 rally at New York City’s Madison Square Garden. While ...

8. Leftover Halloween candy? Try these 4 delicious recipes - AOL

   www.aol.com/leftover-halloween-candy-try-4...

   Alas, Fright Night is over, but that doesn't mean the fun is done! If you have a mountain of leftover candy from your Halloween festivities, you may be tempted to toss it in the garbage or settle ...

9. Insulating concrete form - Wikipedia

   en.wikipedia.org/wiki/Insulating_concrete_form

   Insulating concrete form or insulated concrete form (ICF) is a system of formwork for reinforced concrete usually made with a rigid thermal insulation that stays in place as a permanent interior and exterior substrate for walls, floors, and roofs. The forms are interlocking modular units that are dry-stacked (without mortar) and filled with ...