Why the right eyelid swells

The eye as an anatomical entity consists ofeye sockets (bone formation of the skull), eyeball, eyelids, eyebrows and surrounding skin. In the eyeball, in turn, distinguish sclera, cornea, conjunctiva, vascular membrane, which includes the iris and retina. Sclera is called the shell of the eyeball white. It consists of connective tissue. The cornea is the anterior part of the sclera spherical, which is clearly visible on the side of the eye. Conjunctiva is represented by a transparent membrane covering the eyelids and sclera from the inside.

The color of the iris (iris) determines the colorthe human eye (blue, brown, green, etc.). Iris is needed as a diaphragm, which regulates the penetration of light into the eye. The pupil is a hole in the iris of black color. In bright light, the pupil narrows to reduce the flow of light, and expands in the dark. The retina is the inner shell of the eye, which includes a layer of receptors that provide (by analogy with photographic film) the perception of light and information transmitted to the brain, which we perceive as sight.

Information about what the human eye sees,transmitted through the optic nerve. Inside the eyeball is the lens (a biological lens that focuses rays of light on the retina) and the vitreous (a transparent formation resembling a gel located behind the lens). Diagnosis of diseases in the iris of the eyes - iridodiagnostics. Each human organ is projected onto the iris, and its changes establish a preliminary diagnosis of many diseases. This method is used since ancient times, has the ability to obtain information about the whole organism in one projection site. The method is painless, harmless, informative.

The opacity of the lens is called cataract. This eye disease can be congenital and acquired (senile cataract, diabetic, radiation, post-traumatic, etc.). The development of cataracts is influenced by various factors: excess sunlight, a violation of the environment, neuropsychic overstrain, metabolic disorders.

Often the disease affects both eyes. However, in the early stages, one eye can be affected. In this case, patients note a gradual increase in blurred vision, reduced visual acuity both near and far, which can not be corrected by spectacles. The extreme degree of damage to vision in cataracts is blindness (complete loss of vision with the ability to distinguish only light).

At the first signs of cataract development(visual impairment and others) it is recommended to undergo a special examination with an ophthalmologist. Muscles of the eye (straight and oblique) are fixed to the eyeball from different sides (upper, lower, medial, lateral) and provide a variety of eye movements. External signs of cataract appear with a long-term current process in the form of whitish spots on the pupil.

With congenital malfunction or weaknessone or more oculomotor muscles in a person develops the wrong position of the eyes, in everyday life called strabismus. Strabismus can be congenital or acquired (caused by trauma, some diseases or surgical interventions on the eyes).

Normally, the right and left eyes concentrate onone and the same point, but the image is transmitted to the brain from the retina. In turn, the brain processes and combines two pictures, as a result, the visual image in the mind of a person becomes voluminous. If you stretch out your hand in front of you and look at it alternately, closing one or the other eye, you will notice that the hand visually changes its position slightly. Despite the fact that the images will be slightly different from each other, the brain, when viewed with two eyes, interprets them as one.

At the child at development of a strabismus the brain receivestwo images that he can not collect in a single image. As a result, there is a double vision in the eyes, and the brain works with only one image, suppressing the other, coming from the mowing eye. Very soon this suppression becomes irreversible. In order to somehow compensate for strabismus, children often turn or tilt their head to one side, which can lead to a curvature.

If strabismus develops in adults, then suchpeople will complain about doubling in the eyes. In children, the main signs of strabismus are the deviation of one or both eyes from the middle line, squinting, tilting or turning the head in the opposite direction.

Remember! Children, as a rule, do not complain about doubling because of pronounced adaptability. Therefore, all children should be screened in a timely manner from a child's ophthalmologist to identify possible abnormalities. The sooner the treatment begins, the more likely it is to fully restore the impaired vision.

Redness of the eyes can be a manifestation of botheye diseases, and diseases of internal organs. Acute conjunctivitis (inflammation of the conjunctiva) is the most common cause of redness in the eyes. This disease can be caused by both microbes and viruses, often transmitted by contact (through dirty hands). Predisposes to the development of conjunctivitis overheating or hypothermia of the body, decreased immunity, micro-trauma of the eye.

In addition to redness in the development of acuteconjunctivitis patients complain of pain, burning sensation, rubbing in the affected eye, there is photophobia. In the morning, a large number of discharged (serous or purulent) from the eyes, gluing the eyelids in the morning. In this case, not only the eyelids swell, but also the transitional folds. Submandibular lymph nodes are enlarged.

Note! The easiest way to determine the color change of the conjunctiva is to compare its color with the color of the nail.