Red eyes are often symptomatic for numerous pathologies of various components of the eye’s surface the conjunctiva, the cornea and the lachrymal apparatus causing qualitative/quantitative alterations of the lachrymal film.
Among the causes, according to a european study conducted on almost 80,000 patients, the most frequent cause (43%) is an allergic conjunctivitis, followed by bacterial conjunctivitis (33%) and dry eyes (21%).
Red eyes create discomfort: the blood vessels, thickend by the reaction create a coarseness of the conjunctivitis and during the continuous movements the eyelids perceive these irregularities as extraneous objects.
To obviate often eyewash and ocular liquids are used which when used without medical indications can cause severe damage to the eyes.
“Red eyes? Beware of do-it-yourself treatment” is the theme of an international congress held at Fermo (21-22 september) whose contents were illustrated this morning in Rome.
Each year in Italy 17 million eyewashes are sold but of these only 6 million are prescribed by a specialist: therefore specialists declare that 10% of the persons who use eyewashes regularly are at risk.
The italians buy the artificial tears with extreme ease, some use it even 60 times a day - confirms prof. Stefano Bonini, director of the Clinica Oculistica del Campus Biomedico di Roma - but don’t obtain results despite the numerous somministrations. A high percentage presents lacerations on the cornea and at that point the situation is compromised. Eyewashes contain preservatives which irritate and over time can compromise the ocular tissues. This problem does not exist when an any eyewash is used once in a while but if the eye continues to redden it is really important to go to a specialist.
Also prof. Giovanni Calabria, director of the Clinica Oculistica of the Università of Genova, afferms that inappropriate use of eyewashes in the long run can alter the lachrymal film. The diagnosis by a specialist can avoid these damages because the specialist can reconduct the symptoms to the pathology and avoid the worsening of the patient’s condition.
The increasing attention of science to a more systematic diagnosis of the dry eye, the introduction of ever more innovative methods like the citilogy and the immoistochimica are producing the genesis of a treatment philosophy called by oftalmologists “Specialized lachrymal integration” – afferms prof. Alfonso Giovannini Director of the Istituto di Scienze Oftalmologiche of the University of Ancona – the first treatments of the dry eye were aimed at curing the last phases of the pathology, partially because these were easier to identify and because there was little knowledge of the “trigger” mechanisms implied in the “dry eye”. Today the music changes.
Source: Salute Europa del 20/09/06
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