Close-up photograph of a person's eye following a corneal graft (keratoplasty),an operation in which any diseased parts of the cornea (the membrane covering the eye) are replaced by clear corneal tissue from a donor. Keratoplasty may involve all layers of the cornea (penetrating keratoplasty) or only the superficial layers (lamellar keratoplasty). In the latter case the thickness of the donated cornea is reduced accordingly | |
Licence : | Droits gérés |
Crédit: | Science Photo Library / Argentum |
Taille de l’image : | 4997 px × 3343 px |
Model Release : | Non requis |
Property Release : | Non requis |
Restrictions : | - |