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Presbyopia is a physiological process of progressive loss of accommodation, which leads to a deterioration in the ability to focus vision on objects at different distances. This is now thought to be a direct consequence of two causes: the design of the transparent lens and the way it has to change shape to allow focusing, and the instability of proteins over very long periods of time. In recent years,...
Narząd wzroku jest jednym z najważniejszych zmysłów człowieka. Jego poszczególne składowe umożliwiają m.in. odbieranie bodźców zewnętrznych, rozpoznawanie kształtów, rozróżnianie kolorów czy określenie dystansu między obserwowanymi przedmiotami. Spośród struktur tworzących ten precyzyjny układ szczególną uwagę należy skupić na źrenicy. Jest to czarny otwór w środkowej części tęczówki, który warunkuje...
In the paper eight names for ‘pupil of the eye’ that comes from local dialects or cants of Polish language, namely: pupilla, puppa, pupka, panienka, lalka, babka, człowieczek, mężyk, and their cognate names are lexically and semantically described. All such nouns refer to the concept of the human being that can be supposedly observed in the “pupil of the eye”. The wide belief in such a concept give...
The theory that pupillary changes can reflect human psychophysical character was confirmed in several conducted studies. Authors of those studies have used devices called eye trackers in order to measure pupillary changes, blinking rate, eye movement patterns or even a gaze position. The main goal of those apparatuses is to locate the pupil on a given image using implemented pupil detection algorithms...
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