Apparatus and method for applying light in ocular and periocular areas

Abstract

A removable tip for a light energy handpiece comprises a hollow conduit configured to surround a light guide in the handpiece; a support extension having a length longer than a length of the hollow conduit; and a shielding extension coupled to the support extension at an angle less than 180 degrees and located in front of the hollow conduit. The shielding extension is configured to be inserted behind an eyelid and extend to the fornix, the shielding extension comprised of a thermally insulative material.

What is claimed is: 
     
         1 . A method of treating meibomian gland dysfunction by an application of thermal energy, the method comprising:
 providing a handpiece having a thermal energy device at a distal end thereof;   providing a tip on the distal end of the thermal energy device, the tip having a shielding extension configured to be inserted behind an eyelid and comprised of a thermally insulative material;   inserting the shielding extension behind the eyelid;   contacting the anterior surface of the eyelid with the tip prior to applying thermal energy to the anterior surface of the eyelid;   applying thermal energy to the anterior surface of the eyelid;   wherein heat from the thermal energy device treats meibomian gland dysfunction.   
     
     
         2 . The method of  claim 1 , further comprising the step in which shielding extension is manipulated to create a mechanical separation of the target tissue from adjacent posterior eye structures. 
     
     
         3 . The method of  claim 1 , wherein the shielding extension is configured to be sufficiently flexible such that it deforms to conform to irregular eye structure surfaces when inserted. 
     
     
         4 . The method of  claim 1 , wherein the tip comprises a material that is biocompatible with ocular tissue. 
     
     
         5 . The method of  claim 1 , wherein the handpiece further comprises a heat sink thermally coupled to the shielding extension. 
     
     
         6 . The method of  claim 1 , wherein the handpiece further comprises a cooling source thermally coupled to the shielding extension. 
     
     
         7 . The method of  claim 1 , wherein the thermal energy device is a light energy device. 
     
     
         8 . The method of  claim 7 , wherein the light energy device is scanned to deliver fractional energy treatment to the eyelid. 
     
     
         9 . The method of  claim 1 , wherein the thermal energy device is scanned to deliver fractional energy treatment to the eyelid. 
     
     
         10 . A device for treating meibomian gland dysfunction by an application of thermal energy, the method comprising:
 a handpiece having a thermal energy device at a distal end thereof;   a tip on the distal end of the thermal energy device, the tip having a shielding extension configured to be inserted behind an eyelid and comprised of a thermally insulative material;   wherein:   the shielding extension is inserted behind the eyelid,   the anterior surface of the eyelid is contacted with the tip prior to applying thermal energy to the anterior surface of the eyelid, and   thermal energy is applied to the anterior surface of the eyelid;   whereby heat from the thermal energy device treats meibomian gland dysfunction.   
     
     
         11 . A method of treating meibomian gland dysfunction by an application of thermal energy, the method comprising:
 providing a handpiece having a thermal energy device at a distal end thereof;   providing a shield configured to be inserted behind an eyelid and comprised of a thermally insulative material;   inserting the shield behind the eyelid;   contacting the anterior surface of the eyelid with the distal end of the handpiece prior to applying thermal energy to the anterior surface of the eyelid;   applying thermal energy to the anterior surface of the eyelid by activating the thermal energy device;   wherein the applied thermal energy treats the meibomian gland dysfunction.   
     
     
         12 . The method of  claim 11 , wherein the shielding is configured to be sufficiently flexible such that it deforms to conform to irregular eye structure surfaces when inserted. 
     
     
         13 . The method of  claim 11 , wherein the shield comprises a material that is biocompatible with ocular tissue. 
     
     
         14 . The method of  claim 11 , wherein the thermal energy device is scanned to deliver fractional thermal energy treatment to the eyelid. 
     
     
         15 . The method of  claim 11 , further comprising providing a light energy device on the handpiece in addition to the thermal energy device. 
     
     
         16 . The method of  claim 15 , wherein the light energy device is selected from one or more of: a LED, a laser, and an intense pulsed light (IPL) device.