Category eye health

Symptoms Herpes simplex keratitis
eye health

Symptoms Herpes simplex keratitis

Related articles: Herpes simplex keratitis Definition Herpes simplex keratitis is a corneal infection caused by the Herpes simplex virus (HSV). It represents one of the most serious ophthalmological problems, as it can determine the loss of corneal transparency with reduced visual capacity. Most common symptoms and signs * Burning eyes Conjunctivitis Ocular pain Fotofobia Eyelid swelling Hypoaesthesia Tearing Eyes reddened Corneal opacity Reduced vision blisters Blurred vision Further indications Herpes simplex keratitis usually occurs one week after contact of the virus with the ocular surface

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eye health

Color Blindness

What is color blindness? Color blindness is a predominantly genetic defect, which consists of the inability - total or partial - to distinguish colors mainly due to an alteration of the photosensitive structures at the level of the retina. Despite being a disorder that involves a small slice of the population (it is estimated that about 8% of men and 0
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eye health

Emeralopia - Night Blindness

Generality Hemeralopia - also known as night blindness - is a disorder characterized by difficulty seeing at night and in low light or twilight conditions. Subjects suffering from emeralopia present a delay in visual adaptation when they pass from dark environments to very bright environments and vice versa; however, they have a normal visual capacity during daylight hours
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eye health

Ocular herpes

Definition Ocular herpes is a common infection of the eye, mainly supported by the herpes simplex virus. Although a single episode of ocular herpes tends to resolve without any complication, in some cases the infection can cause scarring at the corneal level or, worse still, irreversibly compromise the sight
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eye health

Conjunctival hyperemia

Generality Conjunctival hyperemia is a frequent disorder characterized by redness of one or both eyes. This condition is often an indication of inflammation , but can recognize various causes. In fact, conjunctival hyperemia can derive from various pathologies that affect the eye and ocular adnexa, such as infections, allergies, trauma, elevated intraocular pressure, penetration of foreign bodies, incorrect use of contact lenses or exposure to irritants ( eg cigarette smoke, dust, smog, ammonia and chlorine)
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eye health

I.Randi Orthokeratology

Generality Orthokeratology is a particular technique used in ophthalmology for the purpose of correcting various types of visual defects. More in detail, orthokeratology - or better, nocturnal orthokeratology - makes use of contact lenses that must be used at night in order to correct sight defects such as myopia, hypermetropia, astigmatism and presbyopia
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eye health

stye

Definition In the medical field, the orzaiolo is an infection that appears as a bulge in the eyelid, an expression of an acute inflammatory process affecting the sebaceous glands of the eyelashes. The orzaiolo appears as a sort of pimple or round pimple, comparable to an abscess of rather solid consistency, which appears on the outer wall of the eyelid or (less frequently) on the inner wall
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eye health

Ophthalmic ointment

What are ophthalmic ointments Ophthalmic ointments are pharmaceutical preparations that are applied directly to the eye to treat or improve a specific eye condition. Similar to eye drops, ophthalmic ointments are also indicated in the treatment of all superficial ocular inflammations, including those with infectious and allergic origin
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eye health

pterygium

Generality Pterygium is a disease that affects the anterior surface of the eye. This pathological condition is characterized by the development of a fibrovascular membrane at the level of the scleral conjunctiva . Progressively, the pterygium may extend to cover the cornea (transparent tissue that lies in front of the iris and pupil)
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eye health

Retinitis

Definition Retinitis is defined as any inflammation affecting the retina, whether due to infections, hereditary degenerative diseases or inflammatory (inflammatory) processes of the neighboring ocular tissues. Although numerous sub-categories exist, retinitis can be subdivided substantially into two macro-groups; according to the cause of origin, they are distinguished: Infective retinitis, induced by bacteria, viruses (in particular, by cytomegalovirus) or mycetes Retinitis pigmentosa, hereditary-degenerative disease that almost always leads to blindness Retinitis is a real threat to eyesight,
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eye health

Sparkling Scotoma

Generality The scintillating scotoma is a visual manifestation very often associated with migraine with aura . This symptom consists in the perception of a dark speck surrounded by small colored stripes with intermittent luminosity , in a visual half-field. In practice, the subject who experiences a scintillating scotoma sees an area of ​​less visual efficiency, while the details present in the rest of the visual field are perceived normally. Th
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