Reprezinta inflamatia conjunctivei, membrana care acopera portiunea anterioara a globului ocular.
Aceasta membrana este foarte bine vascularizata, fiind in acelasi timp si foarte sensibila la factorii de risc iritanti ai mediului inconjurator.
Conjunctivita poate fi clasificata ca fiind primara (in cazul conjunctivitelor alergice, infectioase, cat si traumatice) sau secundara (in cazul afectiunilor oftalmologice, cum ar fi glaucomul, uveita, neoplasmul etc).
In cele mai multe cazuri, in conjunctivita este implicata si inflamatia pleoapei, aparand afectiunea numita blefaroconjunctivita.
Exista rase de caini predispuse la alergii cutanate, alergii mediate imunologic, la care conjunctivita are o incidenta mai mare, materializandu-se printr-o conjunctivita alergica.
Semnele clinice se traduc prin: spasmul pleoapei (blefarospasm), hiperemia (inrosirea) conjunctivei, scurgeri oculare seroase, mucoase sau chiar mucopurulente etc.
Acumularea de exudat la nastere, cu asociere infectioasa (bacteriana sau virala) este frecventa in primele zile de viata ale puiului de caine.
In numarul viitor voi descrie conjunctivitele virale, alergice, neoplazice, traumatice si cele secundare bolilor oftalmologice.
De asemenea, voi prezenta notiuni de diagnostic si tratament in conjunctivita, acestea avand un rol esential in evolutia bolii, care, de la o inflamatie simpla, se poate transforma in-tr-o afectiune grava a globului ocular.
Liviu Harbuz,
DVM Ph. D
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