Contact lens. This is a thin plastic lens worn on the surface of the eye to correct vision,as an alternative to spectacles. Most modern contact lenses are made of soft,flexible plastic that is permeable to oxygen. If contact lenses are not cared for properly,or are worn for extended periods of time,they can cause a variety of problems. These include infections,drying of the eyes and abnormal blood vessel growth | |
Licence : | Droits gérés |
Crédit: | Science Photo Library / Lawry, Lawrence |
Taille de l’image : | 3389 px × 4190 px |
Model Release : | Non requis |
Property Release : | Non requis |
Restrictions : | - |