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FAQ OCHIO network

FREQUENT QUESTIONS

What diseases can hide vision disturbances?

Visual disturbances hide far more serious illnesses:

  • cataracts – occurs in the elderly and manifests by doubling the image;
  • glaucoma – is manifested by sudden decrease in vision, headache and vomiting;
  • retinal detachment – occurs especially in men over the age of 40 and has as a symptom the perception of a wave;
  • migraines – are severe headache, manifested in short periods;
  • brain tumors – visual disturbances are a symptom in this case. These are accompanied by vomiting, difficulty walking or speech;
  • diabetes mellitus – a disease that is symptomatic of a decrease in vision quality.

How do I prevent the development of vision problems?

It is very important to wear sunglasses during the summer. They protect your eyes from too strong solar rays. For a better view, it is recommended to quit smoking, avoid stress and sleep at least 8 hours per night. Problems of vision may also occur due to chronic fatigue, if you are under medical treatment or if you are going through a more stressful period. In these cases, sight problems pass if you go outdoors, rest and have a healthy diet.

What are the causes that lead to frequent lacrimation?

All of us have faced eyewashing or wetting, not just when we were excited, but also when exposed to cold, wind or other unfavorable weather conditions. The tears, which are necessary for all types of eyes to keep them lubricated and healthy, are produced by a series of glands located on the edges of the eyelids. Larger amounts of tears are produced by the tear gland located on the upper eyelid. Excessive tears may be caused by a series of abnormalities linked either to the production of too many tears, or to drainage or tear flow problems. Excessive tingling can be related to eye infections, allergic reactions, genes turned inward, foreign bodies in the eyes or exposure to wind, smoke or steam. Surprisingly, even dry eye patients have laceration due to the fact that when the eye lubrication level is too low, the tear gland compensates for excessive lacrimation.

Can ocular disorders be prevented?

Occurrence of eye diseases can not be prevented, but we can anticipate and possibly avoid the progression of a disease. For example, an adult having glaucoma parents may, through preventive checks, detect very early the appearance of the first signs of glaucoma and make early treatment to avoid progressing the disease. Also, a diabetic patient can prevent or delay the onset of diabetic retinopathy if he manages to control his biochemical parameters, especially glucose. The appearance of an acute facotoxic glaucoma can be prevented by the early operation of a very advanced cataract, which is, in fact, the cause of this type of glaucoma. Conjunctival bans can be prevented by rigorous hygiene of hands, as wearing sunglasses with the appropriate lens can prevent / postpone macular lesions favored by UV or blue radiation.

How do we clean our glasses?

The first step is to wash your hands with soap and water and then wipe them with a clean, lint-free towel. Step two is to rinse glasses under a hot water jet from the tap. This will remove dust and other debris that can scratch the lens when cleaning. It is important to avoid hot water because it can damage some lens treatments. Then we can apply a drop of plain liquid soap to the lenses and gently rub both sides of the lenses and frames. After cleaning the lenses and soap frames, we roam well. To remove most of the water from the lenses, glasses shake lightly. Then, with a clean towel-free towel, carefully wipe the lenses and frames. After removing the lenses, it is good to check that the lenses are clean. If these are streaks or stains, we can remove them with a clean microfibre cloth.

At what age should I take my child to the first ophthalmic consultation?

Go to an ophthalmic consultation with your baby shortly after birth to detect congenital ailments. Then repeat the ophthalmologic examination at the age of 3-4 years. These consultations are done in the absence of any symptom. The reason? During this time, extremely diverse diseases can occur. For babies born prematurely, ophthalmic consultation becomes an emergency. In the first 6 months, go to a specialist even if the baby has no eye problems. An eye that is smaller, a pupil that is not as dark as the other, color differences, an eye that tears, anything that looks abnormal or asymmetric must go to the ophthalmologist. At two years, it’s a good second visit without symptoms.

What is astigmatism?

Astigmatism is a refractive defect in which refractive power is not the same on all meridians (the cornea has a radius of curvature on a spindle, and the perpendicular meridian has a different radius of curvature). In the case of regular astigmatism, the main meridians are perpendicular. We meet in ophthalmic practice and irregular astigmatism (eg Keratoconus) that has a complex therapeutic approach. Depending on the magnitude of ametropia, signs may range from slight blurred vision to headache and poor vision. Most often, it is due to an irregular, elongated shape of the cornea (like a rugby ball) causing the light to focus at two points on the retina instead of one. Astigmatism is corrected with glasses or toric contact lenses.

What is myopia?

Myopia is the ametropia in which the image of the objects is formed in an outbreak in front of the retina. It is due to the elongation of the antero-posterior axis of the eyeball. Myopia can occur in childhood (myopia of school) during adolescence or adulthood. There is a type of myopia that occurs from birth (myopia “malignant”) and can reach very high values. In the case of opacification of the crystalline nucleus, “miopenic cataract” occurs. In the growing period of the child, myopia usually increases, the evolution being related to the increase of the eyeball and implicitly of the antero-posterior axis of the eye. For treatment, a specialist ophthalmologist should be consulted, indicating the glasses required for myopia. Also, a high protein and vitamin diet, effort avoidance, and reading hygiene will be indicated, keeping the distance from the 35 cm card and with proper illumination.

What is Hypermetropia?

Hypermetropia is the defect of refraction in which the outbreak is formed not on the retina, but behind it. It is constantly encountered in childhood when the eye is not fully developed. The hypermetropon makes efforts to accommodate (clearing the clear image) when looking at the distance and when looking close, trying to correct some or all of the refractive defect. Children and young people with low hypermetropia are able to compensate by means of accommodation the lack of convergence (“make a bigger visual effort” to see clearly). In the case of medium or large hyperplasia, the patient does not see clearly either at a distance or read. Ophthalmologist will determine the degree of hypermetropia objectively and will indicate the necessary correction with convergent lens glasses, ie “plus”, required in relation to the age and degree of ametropia. Wearing glasses makes disappearing all the phenomena of eye fatigue, to give a clear, restful image and a balance of the whole body.

What are progressive lenses?

The main advantage of the progressive lenses is that one can wear a single eyeglass that can be as close and close as possible. Progressive lenses use the principle of optimization, which is based on linearization and represents the surface of special-purpose lenses. The focusing power of the lens progressively increases between the high and low power region of the lens. The progressive lens model is a corrective lens used for presbyopia or other dysfunctions such as visual disturbances or adaptation. The advantage of this model is that the glasses can be used both for reading and for distance. They are made up of a gradient and the power of the lens increases depending on the ophthalmologist’s administration. The gradient starts at the top of the progressive lens, the area being specific to the remote viewing and reaching the maximum power at the bottom being used for reading.

How many lenses already exists?

There are several types of lenses: concave, biconcave, convex, biconvex or meniscus-convex. Meniscus-convex lenses are used in ophthalmic optics and have a convex and convex surface, converging or diverging depending on the degree of curvature of the concave surface relative to the convex surface. Lenses are also distributed, depending on their complexity, in spherical lenses and aspheric lenses. Spherical lenses are symmetrical, meaning that their curved side may be part of the surface of a circle, while the aspheric ones have more complicated shapes. Spherical lenses may be subject to multiple distortions, so-called optical aberrations. However, this drawback was eliminated by aspheric lenses. When we talk about eyeglass lenses, in addition to the optical correction of vision, these are made with various treatments that provide additional benefits to wearers. Thus, anti-reflective treatments (which reduce the brightness due to light reflection and increase image contrast), UV anti-radiation treatments (which significantly reduce the amount of UV radiation) are applied to the lenses.

What does an ophthalmic consultation mean?

Visiting an ophthalmologist is a fairly simple process and generally does not last for more than 30-40 minutes. The ophthalmologic examination begins with the medical history of the patient (medical and family history) and the knowledge of his lifestyle (working environment, leisure activities). Then follow the visual acuity test. The patient reads figures and letters on a luminous panel. In this way, the ophthalmologist can determine if prescription eyeglasses are prescribed. Dioptrie is determined and the patient is informed about the choice of eyeglasses and contact lenses. A very important step is measuring eye pressure, especially for people over 35 years of age. This can cause glaucoma or the appearance of glaucoma. Examination to the ophthalmoscope may cause eye, retina, optic nerve damage. If you spend a lot of time in front of your computer, your TV, or if you work in a risky environment for your eye’s health (dust, wind, extreme temperatures, strong light), it’s a good idea to see your ophthalmologist once a year. You can help prevent problems by wearing appropriate eyewear or using eye drops.

What is amblyopia?

Amblyopia or “lazy eye” is the decrease in visual acuity (AV) of an eye or both. It is an alteration of binocular vision.

  • Amblyopia is deep if the visual acuity is less than 10%.
  • average if visual acuity is between 20 and 50%.
  • easy if visual acuity is over 50%.

Children can develop amblyopia from birth until the age of 6-7 years. The amblyopia child does not realize he does not see well with one eye. Thus, the brain ignores the problems of the problem eye and only perceives the images from the healthy eye. The earlier diagnosed, the better the chances of treatment. There are several forms of amblyopia, but the most common are amblyopia accompanied by refractive vices (myopia, hypermetropia and astigmatism) or strabismus.

Causes of amblyopia:

  • Deprivation– when in the first few weeks of life, due to an obstacle (unilateral congenital cataract or other organic diseases), the eye does not see and consequently the vision does not develop normally
  • When the baby is instructed to wear glasses and does not wear it – the view remains weak, especially when there are diopter differences between the eyes
  • Strabismic amblyopia – the date of competition between the eyes – so the cortex will use preferentially the eye that sees better and fixes, and the stray eye remains almost unused.
  • The most common cause is the diopter difference between the two eyes (anisometropy)

The baby is not born with amblyopia, it is installed on the way through the non-use of one eye, so it can be prevented by checking at the young age and correcting the diopter as quickly as possible through glasses. The purpose of the treatment is to make the child look perfectly with each eye and to use both eyes at the same time, allowing their binocular vision and consequently the normal development of space vision (3D).

What is strabismus?

Strabismus is an ocular affection in which the axes of the two eyes are not parallel and one or both eyes deviate. The main sign of strabismus is the lack of alignment of the visual axes of the eyes, that is, an eye running away from the normal legal position before. There are also indirect signs such as closing one of the eyes in strong light, turning or tilting the head to one side.

The causes of strabismus are many:

  • Heredity: parents, siblings or close relatives have strabismus, but it can also occur in relatives without straggling relatives.
  • Refraction vices (presence of dioptres), especially when there are differences in dioptres between the eyes. Often, refraction vices are transmitted hereditary.
  • Low vision of an eye for various reasons (eye injury, cataracts, intraocular tumors).
  • Neonatal neurologic history: premature, dismutated, cerebral stroke, meningitis.
  • Neurological disorders: hydrocephalus, Down syndrome, cerebral palsy.
  • Congenital malformations of the orbit or eye.
  • Cerebral, orbit or eye trauma.
  • Unknown causes: Most of the time, the cause can not be established.

What is allergic conjunctivitis?

Conjunctival is a mucosal membrane similar to other mucous membranes of the human body, such as those of the nose and throat. The most common form of allergic symptoms in the conjunctiva is due to hypersensitivity to substances like pollen or fan, as well as allergies to fur animals or the like. Conjunctival hypersensitivity reactions may also occur in people without known prior allergies.

Symptoms. Conjunctival allergic reactions are generally extremely unpleasant, but completely harmless to eyes and eyesight. These may manifest in the form of itching, reddening and inflammation of the conjunctiva. Sometimes there is an abundant secretion that flows leaving sticky traces. It is usually accompanied by sensitivity to light. During so-called toxic reactions, with the onset of a strong reaction to an irritant in the environment, there is often a strong inflammation.

Blepharitis

The main advantage of the progressive lenses is that one can wear a single eyeglass that can be as close and close as possible. Progressive lenses use the principle of optimization, which is based on linearization and represents the surface of special-purpose lenses. The focusing power of the lens progressively increases between the high and low power region of the lens. The progressive lens model is a corrective lens used for presbyopia or other dysfunctions such as visual disturbances or adaptation. The advantage of this model is that the glasses can be used both for reading and for distance. They are made up of a gradient and the power of the lens increases depending on the ophthalmologist’s administration. The gradient starts at the top of the progressive lens, the area being specific to the remote viewing and reaching the maximum power at the bottom being used for reading.

What Is Dry Eye Syndrome?

Symptoms. Many people suffer from dry eye syndrome. This problem is more common in elderly people, but young people may also feel dry eye. Discomfort is often associated with certain activities like the state in front of the computer screen or reading. Most feel not just dry eye, but also tiredness, irritation or pain. The cause is the absence of lacrimal film (which in ordinary terms we call tears or tear fluid), which makes it impossible to keep moisture in the eyeball. This causes the appearance of minor injuries, irritations and the feeling of a foreign body.

Treatment. It can not be cured, but there are great chances of relieving symptoms.

THE SPECIALIST ADVICE

There are several types of eye vision problems and eye affections. Annual changes indicate an emergency, others suggest related illnesses. Some visual disturbances show that you spent too much time in front of your computer. Certainly, after a certain age, a visit to an ophthalmologist is required. Find out some of their most common questions and answers.

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