Category: Encyclopedia of the Eye

TRACHOMA

TRACHOMA

A form of conjunctivitis caused by Trachoma virus, which belongs to a group of atypical PLT-viruses, which take place between real viruses and bacteria, and with their properties they are similar to rickettsiae. The occurrence of trachoma is specific for areas along the estuaries of rivers with quiet flow, swamp areas, coasts of shallow warm […]

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TUMORS OF THE CONJUNCTIVA

EPICANTUS – mole of the conjunctiva (CONJUNCTIVA MELANI) This mole is localized pigmentation, often next to the limbus or on the tear nipple. It does not require treatment. It is important because of the differential diagnosis towards the melanoma of the joint. Melanoma has a faster growth; it is pathologically vascularized and prone to penetration […]

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CONJUNCTIVITIS

CONJUNCTIVITIS

Conjunctivitis or the inflammation of the conjunctiva is a very common disease and its severity varies from mild inflammation with lacrimation to severe inflammation that causes damage and decay of the tissue. Conjunctiva (the outermost layer of the eye and the inner surface of the eyelids) is a transparent, smooth and shiny membrane that connects […]

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Retinoblastoma in the left eye

TUMORS OF THE RETINA

Retinoblastoma Retinoblastoma (glioma) is a tumor of the inside eye’s membrane or the retina. It occurs in the first years of life, in 30% of cases on both sides. It is inherited AD. It is noticeable only when it affects the vitreous, so from the extended pupillary opening for a blind eye, bursts a yellow […]

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BLEPHARITIS

BLEPHARITIS (INFLAMMATION OF THE EYELID)

Blepharitis marginalis ciliaris (inflammation of the edge of eyelid) is a disease of the edge of eyelid caused by bacterial infection of eyelash secretory canals, and it can be a consequence of uncorrected refractive anomaly, allergy and chronic stimulation. It can be lupus erythematosus, squamous and ulcerative. Symptoms: Edges of eyelids are red, sometimes swollen, […]

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CHALAZION

CHALAZION

Chalazion is a chronic inflammation of meibomian gland caused by a blockage of secretion in the secretory canal. It often appears in several places and it is more common with adults. The gland increases with no sign of inflammation, and the patient usually seeks medical advice because of the altered appearance of the eyelid (small […]

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TUMORS OF THE ORBIT

Symptoms: The main sign of tumors is exophthalmos, and then swelling and reduced mobility of the eye. Types: Orbital cysts: • congenital> dermoid, epidermoid cysts, teratomas, encephalocele and meningecele. • Acquired cysts> mucocele, piocele, inflammatory cysts, parasitic cysts, dental cysts, cysts of a lacrimal gland Primary orbital tumors: • tumors of the development > dermoids, […]

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HORDEOLUM

HORDEOLUM (STYE)

Stye (chordeolum) is an acute, focal inflammation of the eyelid. It appears as a sudden, painful inflammatory swelling on the edge of the upper or lower eyelid, which may seize the whole eyelid. It is mostly the inflammation of tiny meiboam sebaceous glands on the eye (internal hordeolum), and less often an infection of the […]

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AMBLYOPIA

AMBLYOPIA

Amblyopia is a disorder of the visual system that is characterized by poor or indistinct vision in an eye that is otherwise physically normal. It is estimated that is affects 1-5 % of the population. The disorder is caused by impaired transmission or lack of transmission of visual image into the brain in the period […]

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STRABISMUS

STRABISMUS (SQUINTING)

Strabismus or squinting is a disorder of the position of eyes and visual function, at which it is not possible to direct both visual lines towards a fixed point. Normally, when an object is observed, images of both eyes fall simultaneously into the point of central vision of the eye. However, if both eyes are […]

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