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Astigmatism

Astigmatism is an imperfection in the curvature of the cornea-the transparent convex membrane that forms the anterior portion of the eyeball’s fibrous tonaca-or in the shape of the lens.

Normally, the cornea the lens are smooth and have the same curvature in all directions, thus helping to focus at the back of the eye the light rays that strike the retina. However, if the cornea or lens is not smooth and evenly curved, light rays are not refracted properly. This is called refractive error. When the cornea is irregularly shaped, it is called corneal astigmatism; when there are lens changes, it is called lenticular astigmatism.

As a result of both types of astigmatism, vision appears blurred or distorted.

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Dr. Maurizio Giusti

active 5 years, 7 months ago

Ophthalmologists
- Via Monte Rosa 1 - Guidonia
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Dr. Marco Allegranti

active 5 years, 7 months ago

Ophthalmologists
- Via Pier Capponi 41 - Firenze
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Dott. Gaetano Trainito

active 5 years, 7 months ago

Ophthalmologists
- Via Emanuele Morselli 73 - Gela
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Dott.ssa Serena Telani

active 5 years, 7 months ago

Ophthalmologists
- Salita da Serro a Morego 9 - Genova
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Dr. Gianfranco Panarello Muscolino

active 5 years, 7 months ago

Ophthalmologists
- Viale Prassilla 41 - Roma
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Can glaucoma be prevented?

The most significant prevention of glaucoma lies in having an eye examination at the onset of the first complaints or specific symptoms of eye disease.

Sjogren’s syndrome

In 1933, Swedish physician Henrik Sjögren first described a group of women in whom chronic arthritis was accompanied by dry eyes and mouth, effectively discovering a condition that still bears

The risk of fungal infections in swimming pools

In places such as swimming pools, fungal infections are very common because of the large number of people in the water, but also because of certain favorable conditions such as higher levels of humidity and temperatures.

Glaucoma: what it is, causes and warning symptoms

Glaucoma is a disease that affects the optic nerve and, if not treated properly, can even lead to blindness. Therefore, it is important to learn to recognize its premonitory symptoms.

Cytomegalovirus infection in pregnancy

Most people who are infected with cytomegalovirus (CMV) have no symptoms.

Hashimoto’s thyroid

When the immune system launches an attack on the thyroid gland, the small gland located under the Adam's apple, which produces hormones that regulate so many functions of the human body.

Thyroid and pregnancy

It is necessary to observe these symptoms during pregnancy and report them to your doctor in time, especially because usually some of them such as fatigue and weight gain are also present during a normal pregnancy, so they might be taken as normal and not alert the person who is affected.

Probiotics and allergic rhinitis

Allergic rhinitis is a very common and widespread condition in the population with fairly high rates and symptoms such as sneezing, itching, and nasal congestion.

Keratitis: symptoms, causes and treatment

Keratitis is an inflammation of the cornea, that delicate and precious transparent membrane that lines and protects the front of our eye. What is keratitis caused by? Are there individuals

Visual disorders in adulthood: the main causes

When you start to see poorly up close or from a distance in persistent way or you have a heavy head or eye discomfort after having read or used the

RELATED PATHOLOGIES

Amblyopia

Amblyopia, more commonly known as “lazy eye,” is a disease of the visual apparatus characterized by reduced vision in one eye due to abnormal visual development early in life. The

Keratitis

Keratitis is an ocular condition caused by inflammation of the cornea, the transparent membrane that lines the central anterior part of the eye, at the iris and pupil, and that

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Degenerative maculopathy is an irreversible disease that affects the macula, the central part of the retina. The result is a progressive loss of visual ability. There are two distinct forms

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Strabismus is an ocular condition characterized by misalignment of the eyes and, therefore, of the left and right visual fields, which can occur in the first 6 months after birth

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Conjunctivitis are inflammatory conditions of the mucous membrane lining the inside of the eyelids, in contact with the eyeball. These are extremely common phenomena in the population of both sexes

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Diabetic retinopathy is an ocular condition in which there is progressive damage to the retina and subsequent gradual decline in visual acuity. It is one of the most feared complications

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Ocular tumors are rare neoplasms that can affect both adults and children and can significantly impair vision (to the point of blindness) and quality of life, as well as shorten

Dry eye

Dry eye syndrome sets in when the superficial tear film that protects, irrigates, and nourishes the outer layers of the eye, particularly the cornea and conjunctiva, is too poor or

Myopia

Myopia is a refractive defect in which the image of distant objects is formed in front of the retina, rather than on the retina itself, making vision indistinct, while vision

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Dott. Gaetano Trainito

active 5 years, 7 months ago

Ophthalmologists
- Via Emanuele Morselli 73 - Gela
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Dott. Riccardo Rizzo

active 5 years, 7 months ago

Ophthalmologists
- Via G. Simili 57 1° Piano - Catania
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Dott. Andrea Fratalocchi

active 5 years, 7 months ago

Ophthalmologists
- Piazzale dell’Umanesimo 10 - Roma
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Dott. Vincenzo Cannemi

active 5 years, 7 months ago

Ophthalmologists

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Dr. Gianfranco Panarello Muscolino

active 5 years, 7 months ago

Ophthalmologists
- Viale Prassilla 41 - Roma
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RELATED SPECIALISTS

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Dr. Giorgio Bailo

active 5 years, 7 months ago

Ophthalmologists
- Piazzale Dateo 2 - Milano
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Dott. Andrea Fratalocchi

active 5 years, 7 months ago

Ophthalmologists
- Piazzale dell’Umanesimo 10 - Roma
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Dott.ssa Serena Telani

active 5 years, 7 months ago

Ophthalmologists
- Salita da Serro a Morego 9 - Genova
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Dott. Marco Di Maita

active 5 years, 7 months ago

Ophthalmologists
- Viale Alcide de Gasperi 151 - Catania
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Dr. Angelo Appiotti

active 5 years, 7 months ago

Ophthalmologists
- Via Luigi Rizzo 8 - Milano
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