Trans-scleral illumination system for vitreoretinal surgery
In one embodiment, an illumination system includes a speculum having two arms coupled to blades at distal ends thereof and a biasing member at proximal ends thereof. One or more optical fibers are disposed through at least one of the arms and have one or more termination points located within at least one of the blades. The optical fibers are configured to deliver light to an interior space of an eye when the eye is coupled to the speculum. In some embodiments, the illumination system further includes a temple support pad.
1. A surgical illumination system, comprising:
a speculum for retracting eyelids of a patient, the speculum comprising:
a first arm having a first proximal end and a first distal end, the first distal end coupled to a first blade; and
a second arm having a second proximal end and a second distal end, the second distal end coupled to a second blade, the first and second arms movable about a pivot axis; and
an optical fiber coupled to at least one of the first blade and the second blade, the optical fiber configured to propagate light provided by a light source for illuminating at least a portion of an eye;
wherein the first and second blades are each shaped to fit under the patient's eyelids and each include a contact surface configured to press against a sclera of a patient's eyeball;
wherein the contact surface has an outward curvature along a length of each blade to conform to a natural contour of the eyeball and enable a substantial portion of the blade to contact the sclera during use;
wherein a distal end of the optical fiber is disposed within at least one of the first blade and the second blade, and a proximal end of the optical fiber is optically connected to the light source;
wherein the optical fiber further comprises a termination point at the distal end;
wherein the termination point of the optical fiber is exposed to an exterior environment of the first blade or the second blade via an opening in the first blade or the second blade configured to direct light beams into an interior space of the eye through the pars plana.
2. The surgical illumination system of claim 1 , wherein the light source comprises an LED light source.
3. The surgical illumination system of claim 1 , wherein the light source comprises a lamp-based light source.
4. The surgical illumination system of claim 1 , wherein the light source comprises a laser light source.
5. The surgical illumination system of claim 1 , wherein the termination point includes a distal tip having an end face arranged at an angle normal to an optical axis of the optical fiber.
6. The surgical illumination system of claim 1 , wherein the termination point includes a distal tip having an end face arranged at an oblique angle relative to an optical axis of the optical fiber.
7. The surgical illumination system of claim 1 , wherein the optical fiber further includes one or more light output points along a length of the optical fiber and aligned with one or more openings of the first blade or the second blade, the one or more light output points configured to propagate light toward the interior space of the eye.
8. The surgical illumination system of claim 1 , wherein the optical fiber further comprises a light non-emitting termination point at the distal end.
9. The surgical illumination system of claim 8 , wherein the optical fiber includes one or more light output points along a length of the optical fiber and aligned with one or more openings of the first blade or the second blade.
10. The surgical illumination system of claim 8 , wherein the optical fiber is a side-emitting optical fiber configured to emit light along an uninterrupted portion of the optical fiber.