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If you’re enrolled in Medicare, routine vision care isn’t guaranteed. Some privately administered Medicare Advantage plans cover eyeglasses and eye exams. But Original Medicare — which ...
Contact lenses. to correct refractive errors of the eye; a little invasive. Phoropter. used in refraction testing. Tonometers. used to determine the intraoccular pressure (IOP) - useful in glaucoma; video link for various types of tonometers. Speculum: to keep the eyes open during any operation. Universal eye speculum.
The praxinoscope improved on the zoetrope by replacing its narrow viewing slits with an inner circle of mirrors that intermittently reflected the images. The praxinoscope allowed a much clearer view of the moving image compared to the zoetrope, since the zoetrope's images were actually mostly obscured by the spaces in between its slits.
Mind's eye. The notion of a "mind's eye" goes back at least to Cicero's reference to mentis oculi during his discussion of the orator's appropriate use of simile.. In this discussion, Cicero observed that allusions to "the Syrtis of his patrimony" and "the Charybdis of his possessions" involved similes that were "too far-fetched"; and he advised the orator to, instead, just speak of "the rock ...
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Each 16 hour flight took 11 minutes to simulate on the fatigue test rig. [1] Fatigue testing is a specialised form of mechanical testing that is performed by applying cyclic loading to a coupon or structure. These tests are used either to generate fatigue life and crack growth data, identify critical locations or demonstrate the safety of a ...
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