Interior 2_2005.qxd - Oftalmologia.ro
Interior 2_2005.qxd - Oftalmologia.ro
Interior 2_2005.qxd - Oftalmologia.ro
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OFTALMOLOGIA 2 - 2005<br />
PRINCIPII DE TRATAMENT<br />
ALE ARSURILOR OCULARE ~N<br />
LUMINA CONCEPTULUI DE<br />
SUPRAFA}| OCULAR| {I<br />
CELULE STEM LIMBICE<br />
V. POTOP, MARIETA DUMITRACHE<br />
REZUMAT<br />
Conceptul de suprafa\` ocular` define]te interdependen\a func\ional` existent`<br />
[ntre cele dou` epitelii nekeratinice ale corneei ]i conjunctivei. Celulele stem limbice<br />
asigur` regenerarea epiteliului cornean survenit` [n urma diferitelor injurii. Aplicarea acestor<br />
concepte a permis p<strong>ro</strong>grese importante [n tratamentul arsurilor oculare.<br />
CUVINTE CHEIE:<br />
• suprafa\` ocular`,<br />
• celule stem limbice,<br />
• ulcera\ii corneene sterile,<br />
• arsuri chimice.<br />
ABSTRACT<br />
The term ocular surface emphasizes the functional interdependence of the<br />
nonkeratinizing epithelium of cornea and conjunctiva. The limbal stem cells are responsable<br />
for replacement of corneal epithelium following ocular surface injuries. Over the past<br />
decades important advances in the management of chemical injury have occured based<br />
on the application of theories on ocular surface and limbal stem cells .<br />
KEY WORDS:<br />
• ocular surface,<br />
• limbal stem cells,<br />
• sterile corneal ulceration,<br />
• chemical injuries.<br />
Din punct de vedere anatomic suprafata globului ocular prezint` limite precise ce par<br />
a separa structuri diferite histologic. Limbul scle<strong>ro</strong>cornean separa intre ele epiteliile<br />
corneean si cel conjunctival. Epiteliul cornean este de tip stratificat scuamos nekeratinizat<br />
compus din 5-6 straturi celulare si lipsit de celule caliciforme. El se afla intr-un p<strong>ro</strong>ces de<br />
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