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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. 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 ...

4. Subjective refraction - Wikipedia

   en.wikipedia.org/wiki/Subjective_refraction

   An occluder is placed over the eye that is not being tested (e.g.: over the left eye, to test the right eye's vision). A pinhole occluder is then placed before the patient's eye, and their vision is then tested again (each eye separately) to determine if the patient's poor visual acuity is a result of optical irregularities, or pathological issues.

5. 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.

6. Bitter cold in forecast: December set for 'coldest start' in ...

   www.aol.com/bitter-cold-forecast-december-set...

   As many drivers make their way home from Thanksgiving travels, most of the north and eastern U.S. will face below-normal temperatures over the next week – with many regions currently under ...

7. 10 comfort-food recipes to ease stress on election night - AOL

   www.aol.com/news/10-comfort-food-recipes-ease...

   It’s Election Day aka one of the most stressful days of the year. Here are recipes for pasta, stews, desserts and more comfort foods that may be able to help.

8. Alabama A&M LB Medrick Burnett Jr. dies after head injury ...

   www.aol.com/sports/alabsms-m-lb-medrick-burnett...

   Alabama A&M linebacker Medrick Burnett Jr. has died, approximately five weeks after suffering an injury in a head-to-head collision during the Bulldogs' game against Alabama State on Oct. 29. He ...

9. Ophthalmic trial frame - Wikipedia

   en.wikipedia.org/wiki/Ophthalmic_trial_frame

   An ideal trial frame have minimum 3 cells, one each for holding spherical lens, cylindrical lens and other tools like occluder or pinhole. [4] Angle for axis of astigmatism is marked on outermost visible cell There are knobes to adjust pupillary distance, side angle, height and cylindrical lens axis. [5]