Intra-ocular implant promoting direction guided cell growth

摘要

An intra-ocular implant has an optical portion capable of optically transmitting light from an exterior of an eye to a retina thereof; and an outer skirt portion extending annularly about the optical portion. The outer skirt portion has anterior and posterior surfaces, one or both of the surfaces having a multiplicity of alternating regular microgrooves and ridges extending annularly about the optical portion. The multiplicity of alternating regular microgrooves and ridges have a substantially same width in a range of between about 4 to about 40 micrometers and a substantially same depth in a range of between about 4 to about 40 micrometers. The multiplicity of alternating regular microgrooves and ridges promote cell growth in a direction along longitudinal axes of the annular microgrooves and inhibition of cell growth in a direction perpendicular to the longitudinal axes, thereby inhibiting cell growth into the optical portion.