Focus, Parallelism and Accommodation
نویسندگان
چکیده
منابع مشابه
Relationship among accommodation, focus, and resolution with optical instruments.
We studied instrument myopia as an overall effect consisting of interactions among the observer's accommodation and resolution during instrument viewing and the manner in which the instrument is focused. Previous investigations of instrument myopia generally have been limited to only one of these variables. Our results are consistent with the dark-focus-bias theory of accommodation, which holds...
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Accommodation was monitored continuously under open-loop conditions while subjects viewed a sinusoidally oscillating sine-wave grating (0.2 Hz; +/- 1 D; 2.7 c/d; 0.56 contrast) in a Badal optometer. The target was illuminated by monochromatic light (590 nm) or white light (3000 K) with longitudinal chromatic aberration (LCA) normal, doubled, neutralized and reversed. Subjects (12) accommodated ...
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A central topic in work on ellipsis is the parallelism between missing VPs and their antecedents. There is evidence that parallelism is conditioned both syntactically and semantically. This has resulted in complex hybrid principles that regulate both syntactic structures and their interpretations (e.g., Fox 1995, 2000). We present an alternative, unified account based on parallelism of semantic...
متن کاملThe effect of modulating ocular depth of focus upon accommodation microfluctuations in myopic and emmetropic subjects
The magnitude of accommodation microfluctuations increases in emmetropic subjects viewing low luminance targets or viewing a target through small artificial pupils. Larger microfluctuations reported in myopia may result from an abnormally large depth of focus (DoF). The effect of modulating the size of the DoF has not been investigated in myopic subjects and may help to explain the cause of the...
متن کاملOptical aberrations, accommodation, and visual acuity with a bioanalogic continuous focus intraocular lens after cataract surgery
Purpose To evaluate the visual outcomes, pseudoaccommodation, and wavefront aberrometry after implantation of Wichterle IOL-Continuous Focus (WIOL-CF®, Gelmed International, Kamenne Zehrovice, Czech Republic) by i-Trace aberrometry. Methods In this retrospective interventional case series study, after cataract surgery with implantation of accommodative WIOL-CF®, the patients were evaluated wi...
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ژورنال
عنوان ژورنال: Semantics and Linguistic Theory
سال: 2015
ISSN: 2163-5951
DOI: 10.3765/salt.v0i0.2819