În cele mai multe cazuri, flocoanele nu sunt periculoase. Sunt cauzate de bucăți mici de țesut, din interiorul ochiului, care creează umbre pe retină, atunci când sunt atinse de lumină. Deși ai impresia că sunt pe suprafața ochiului, ele sunt, de fapt, în interior.
Uneori, mici hemoragii din interiorul ochiului pot duce la apariția flocoanelor, în momentul în care celulele roșii intră în corpul vitros al ochiului. Punctele plutitoare pot lua, treptat, aspectul unui strat de fum și dispar în momentul în care sângele este absorbit.
Alteori, flocoanele pot fi cauzate de contracția corpului vitros, care are loc în mod natural, pe măsură ce îmbătrânim. În momentul în care corpul vitros se îndepărtează de retină, anumite particule pot pătrunde în interiorul ochiului și se transformă în aceste puncte. În mod normal, au aspect de pânză de păianjen.
Când trebuie să te îngrijorezi
În general, flocoanele apar atunci când privești insistent spre ceva luminos, precum cerul albastru sau o bucată de coală albă. Vei observa că aceste puncte se mută, în momentul în care miști ochii, și se vor mări, dacă vei încerca să îi privești în mod direct.
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