The utility model discloses a hydrophobic double-circle ring target-shaped
implant for treating corneal
edema, which relates to the technical field of
ophthalmology, and comprises a hydrophobic
implant, an inner piece is arranged on the hydrophobic
implant, an outer piece is arranged outside the inner piece, and the outer piece is arranged outside the outer piece. At least two
oxygen permeation holes are formed in the outer piece, the
diameter of the inner piece ranges from 5.5 mm to 7 mm, and the
diameter of the outer piece ranges from 8 mm to 9.5 mm. The outer piece is additionally arranged on the periphery of the inner piece, so that the area of the hydrophobic implant is enlarged, the target-shaped implant is formed, the
cornea inner
skin surface or the
cornea interlayer matrix surface is covered as much as possible, the water blocking area is enlarged,
cornea epithelium blisters in the
peripheral area are eliminated, and discomfort such as eye
grind is avoided; water
permeation and
oxygen permeation are carried out to ensure that
nutrient substances enter the cornea and avoid corneal tissue hypoxia
necrosis, and in order to ensure the stability of the hydrophobic implant in the implanting process, the edge of the
oxygen permeation hole is in a round and blunt shape.