Eyelid treatment device

1. An apparatus for a laser treatment of an eyelid of an eye, the apparatus comprising:

a laser source configured to generate a laser beam for the laser treatment;

an optical waveguide with a proximal input end for receiving the laser beam and a distal output end for emitting the laser beam,

the waveguide including a proximal end portion including the proximal input end of the waveguide, a distal end portion including the distal output end of the waveguide,

the distal end portion including a flattened flared arcuate tip sized and shaped to fit between an interior surface of the eyelid and an exterior surface of the eye, the tip includes an arcuate cross-section and two fan-shaped exterior sides opposite of each other, wherein the entire tip is at an angle from and projects asymmetrically off a central longitudinal axis of the proximal end portion, wherein the fan-shaped exterior sides comprise an eyeball engagement surface with a concave contour facing the longitudinal axis, and an eyelid engagement surface with a convex contour facing away from the longitudinal axis,

wherein the tip is configured to guide the laser beam toward the eyelid and away from the eye, and includes a reflective surface at the distal output end that reflects the laser beam transversely to the eyelid engagement surface and toward the interior surface of the eyelid.

2. An apparatus as defined in claim 1 , wherein the proximal end portion is cylindrical.

3. An apparatus as defined in claim 1 , wherein the eyeball engagement surface and the eyelid engagement surface have triangular-shaped peripheral configurations.

4. An apparatus as defined in claim 1 , wherein the waveguide has a rounded leading edge defining a terminal distal end of the waveguide, and the eyelid engagement surface has a triangular-shaped peripheral configuration with a base at the rounded leading edge.

5. An apparatus as defined in claim 4 , wherein the eyeball engagement surface has a triangular-shaped peripheral configuration with a base that is spaced from the rounded leading edge in a direction toward the proximal input end of the waveguide.

6. An apparatus as defined in claim 1 , wherein the waveguide has an elongated distal end surface with an arcuate peripheral configuration, elongated distal end surface extending between the eyeball engagement surface and the eyelid engagement surface.

7. An apparatus as defined in claim 1 wherein the distal output end of the waveguide is oriented to emit electromagnetic treatment energy in a first direction, and the waveguide has a second distal output end oriented to emit electromagnetic treatment energy in a second direction perpendicular to the first direction.

8. An apparatus as defined in claim 1 , wherein the waveguide is a unitary part comprising a single, continuous body of light-transmitting material with an opaque reflective coating.

9. An apparatus as defined in claim 1 , wherein the apparatus further comprises a handpiece, and wherein the waveguide is removable from the handpiece and serves as a handpiece tip.

10. An apparatus as defined in claim 9 , wherein the distal output end of the waveguide is located at one of the side surface portions.

11. An apparatus as defined in claim 9 , wherein the distal end portion of the handpiece tip has a rounded leading edge defining the terminal distal end of handpiece tip, and the triangular-shaped peripheral configuration has a base at the rounded leading edge.

12. An apparatus as defined in claim 9 , wherein the handpiece tip is a unitary part comprising a single, continuous body of light-transmitting material with an opaque reflective coating.