ophthalmology

The allergy in the eyes makes the eyes red, swollen, tearing and with a burning sensation. The allergy may be caused by improper eye makeup or expired expiration date; by the presence of microorganisms that cause conjunctivitis, by the wind and by contact with animals such as dogs or cats. These causes usually do not cause irreversible damage to the eyes and the allergy tends to heal when the triggering agent ceases to be in contact with the mucosa of the eye

HIV can affect any part of the eye, from more superficial regions such as the eyelids, to the deep tissues such as retina, vitreous and nerves, causing diseases such as retinitis, retinal detachment, Kaposi's sarcoma, and various types of eye infections. The chances of having vision affected by the infection are greater when the disease is in more advanced stages, due to the immune changes caused by the disease, as well as by opportunistic infections that take advantage of the immunity to settle down

Purtscher's retinopathy is a retinal injury, usually caused by head trauma or other types of strokes in the body, although its exact cause has not yet been elucidated. Other conditions, such as acute pancreatitis, renal failure, parturition or autoimmune diseases may also cause this change, however, in these cases it is called Purtscher- like retinopathy

Cellulitis of the orbit is the inflammation or infection that is located in the eye, which is the cavity of the face where the eye and its attachments, such as muscles, nerves, blood vessels and lacrimal apparatus, are inserted, reaching its inner orbital part, or periorbital, in the region of the eyelids

With the constant use of smartphones, tablets, computers or consoles that force the eyes to remain focused at the same distance for long periods of time, which causes dry eye syndrome, eye fatigue and headaches. Daily eye care is essential to protect eyesight, as they not only protect you, but also relax and moisturize your eyes, reducing even the risk of having to wear glasses

To combat dry eye, which is when the eyes turn red and burning, it is recommended to use moisturizing drops or artificial tears 3 to 4 times a day to keep the eye moist and reduce the symptoms. In addition, it is important to consult an ophthalmologist to identify the cause of dry eye and initiate appropriate treatment if necessary

The macular hole is a disease that reaches the center of the retina, called the macula, forming a hole that grows over time and causes gradual loss of vision. This region is the one that concentrates the most amount of visual cells, so this situation causes symptoms like loss of central vision sharpness, distortion of the images and difficulty for activities like reading or driving

Ocular tuberculosis occurs when the bacterium Mycobacterium tuberculosis , which causes tuberculosis in the lung, infects the eye, causing symptoms such as blurred vision and hypersensitivity to light. However, this bacteria can affect various parts of the eye and therefore the symptoms can vary greatly depending on the affected site

PRK surgery is a type of refractive eye surgery that helps to definitely correct the degree of vision problems such as myopia, farsightedness or astigmatism. It works by changing the shape of the cornea using a laser that corrects the curvature of the cornea, helping to improve vision. This surgery has many similarities with Lasik surgery, however, some steps of the procedure are different in each technique, and although this surgery appeared before Lasik surgery and has a longer postoperative period, it is still used in many cases, especially in people with thin corneas

Photophobia is the increased sensitivity to light or clarity that causes a dislike or discomfort in the eyes in these situations and causes symptoms such as difficulty opening or keeping eyes open in a lighted environment. Thus, the person with photophobia suffers from an intolerance to the light stimulus, which can be caused by diseases of the eye, such as congenital defects or eye inflammation, or by systemic diseases, such as albinism or meningitis, for example

Terson's syndrome is intraocular bleeding that occurs due to an increase in intrabrain pressure, usually as a result of a cranial bleeding due to rupture of an aneurysm or traumatic brain injury, for example. It is not known exactly how this bleeding occurs, which is usually in important regions of the eyes, such as the vitreous, which is the gelatinous fluid that fills most of the eyeball, or the retina, which contains cells responsible for the vision, and can arise in adults or children

Amblyopia, also known as lazy eye, is the visual impairment that occurs mainly due to lack of stimulation to the affected eye during the development of vision, being more frequent in children and young adults. It is detected by the ophthalmologist, and the determination of the cause is essential to decide which type of treatment is indicated, such as the use of glasses or cap in the eye, and whether or not there will be a cure

An eye drop that promises to cure cataracts is being developed in the United States. The eye drops contain a substance called lanosterol, which is related to the origin of the cataract and seems to be able to definitively eliminate cataracts, without the need for surgery. This medicine works mainly in the early stages of the disease and in the prevention of its evolution, dissolving the stains of the onset of the cataract, maintaining the original shape of the crystalline proteins and thus preventing the worsening of the disease

Ocular rosacea is considered the V degree of classical rosacea and occurs in about 50% of patients with this disease, causing problems in the eye region, similar to a conjunctivitis which, if left untreated, can result in serious ocular complications. The diagnosis is essentially clinical. Normally, if the ocular manifestations are analyzed in isolation, they are not sufficient to guarantee the diagnosis of ocular rosacea, therefore, it is necessary to analyze the manifestations in the skin

The use of some medications can cause cataracts because their side effects can affect the eyes, causing toxic reactions or increasing the sensitivity of the eyes to the sun, which can cause this disease to develop early. However, it should not be forgotten that there are other more common causes that cause this disease, even in those who use these types of medicines, such as aging, excessive exposure to the sun, inflammation of the eye and diseases such as diabetes, high cholesterol and hormonal changes

Retinitis, also called retinosis, encompasses a set of diseases that affect the retina, an important region of the fundus of the eye that contains cells responsible for capturing images. It causes symptoms such as gradual loss of vision and the ability to distinguish colors, and may even lead to blindness

The ophthalmologist, popularly known as an ophthalmologist, is the doctor who specializes in evaluating and treating vision-related diseases, involving eye and its attachments, such as tear duct and eyelids. Some of the diseases most treated by this specialist are myopia, astigmatism, farsightedness, strabismus, cataracts or glaucoma, for example

Retinal degeneration, also called macular degeneration, is a disease that causes a reduction in the ability of central vision, with darkening and loss of sharpness, preserving peripheral vision. This disease is related to aging and affects, mainly, people over 50 years of age, however, it is also possible that it arises in young people

Xerophthalmia is a progressive eye disease that is caused by vitamin A deficiency in the body, which leads to dry eyes, and may result in long-term complications such as night blindness or the onset of corneal ulcers, for example. Although it has severe complications, xerophthalmia usually has a cure, which can be achieved by increasing the intake of vitamin A in foods such as whole milk, cheese or eggs, or by supplementation with the vitamin

The tattoo on the eyeball consists of the injection of paint beneath the surface of the white part of the eye, which becomes colored with the selected tone. Thus, this type of tattoo does not change the color of the iris, serving only to color the white region of the eye. To make the tattoo in the eye uses a very similar technique to the tattoo on the skin: The eye is cleansed with saline and, in some cases, a massage is done to facilitate the entry of the paint; Small holes are made in the surface of the eye , using a machine or a fine needle, small holes are made in the surface of the eye; Th