Pupil

Every time we look at something new, our pupil dilates and contracts in response to changes in light around us. When a person looks at an object, the size of the pupil increases to let in more light, and in the dark it decreases to protect the retina. It is an important part of the visual perception process and allows us to see in any environment.

The pupil is a round opening in the iris that is controlled by the sphincter, a funnel-like muscle located at the base of the pupil. When light enters the eye, the pupil reflexively dilates, allowing more light into the eye. In this case, the image is sharper and clearer. And when the light dims, the sphincter relaxes and the pupil returns to its normal size.

However, the pupil is not always the center of attention. And in vain! After all, it has a direct bearing on our eye health. For example, due to poor nutrition and poor metabolism, which disrupts the functioning of the gastrointestinal tract, the human cerebral cortex gives incorrect signals. As a result, the formation and secretion of juices is disrupted, which negatively affects the functioning of the eyeball. And this, in turn,

*Comparison of synonyms and antonyms: ***pupil***—pupil

**The pupil** is the hole in the center of the iris that allows light to enter the retina. It is shaped like a circle or oval and is usually slightly smaller than the size of the iris. The pupils can be dilated or constricted depending on the light level.

Synonyms: **pupil, puppil**, pupil

Antonyms: **pupils**.

Pupils are also called ***holes in the iris.*** Synonyms: **hole**. There is also a synonym in Latin - pupille. This is a black oval spot located in the middle of the iris and is the pupil for the lens and the light sensor. The size of the pupil can fluctuate depending on a person's activity, but it is usually open or slightly open. Also in ophthalmology, the term *pupillary response* is used to describe changes in the size of the pupil, such as dilation in bright light or constriction in the dark. If we talk about antonyms, then, like many words, the pupil has its own pair of antonyms. For this word, these are the words **behold** and **not behold. Vision must be correlated with vision, respectively, non-vision against the background of what is clearly visible, namely the opposite phenomenon is the antonym of the pupil. That is why the pupil is not seen in a dream, it is completely the opposite. However, how can you not see the size of the pupil in a child or an adult, or in a person at the moment of hysteria.