WebbThe pupil is a black hole located in the center of the iris of the eye that allows light to strike the retina. It appears black because light rays entering the pupil are either absorbed by the tissues inside the eye … WebbThe function of the pupil is clearly that of controlling the amount of light entering the eye, and hence the light reflex. The constriction occurring during near vision suggests other …
Ciliary muscle - Wikipedia
WebbThe pupil is the small black circle in the centre of the iris. It is a tiny hole present over the lens through which light enters the eye and focuses on the retina for image formation. … WebbNeed and Importance of Register. The purpose of register is to better organize record keeping and ensure there is an efficient system for keeping and passing on information. It is a historical record and can be used for checking any information accurately at any instance of time. They facilitate continuity in the administration of a school. irene acevedo
Comparison of the frequency of use of a pupil expansion device …
WebbMiosis (pupillary constriction): A loss of sympathetic input causes unopposed parasympathetic stimulation which leads to pupillary constriction. This degree of miosis may be subtle and require a dark room. Anhidrosis (decreased sweating): Also caused by a loss of sympathetic activity. The pattern of anihidrosis may help identify the lesion. Examination of the pupil is important because it can denote problems in the pathways controlling the pupil. A light is used to check the … Visa mer The pupil controls how much light is let into the eye. It is very similar to a camera aperture which allows more light in for more exposure. At night, our pupils dilate to allow more light in to maximize our vision. In the bright … Visa mer The iris, the colored part of our eye, is made up of pigment and contains two sets of smooth muscles that control the size of the pupil: the sphincter muscle and the dilator muscle. The sphincter muscle is in the shape of a ring at … Visa mer Webbpurposes,summative assessment should have the following qualities: Validity: the assessment must cover all aspects,and only those aspects,of pupils’ achievement relevant to a particular purpose. Reliability: it should be designed so that users can have confidence that the results are sufficiently accurate and consistent for their purpose. irene ackermann