Methods and Apparatus for Integrated Cataract Surgery
Techniques, apparatus and systems for cataract surgery. Implementation of the described techniques, apparatus and systems includes a method for cataract eye surgery is presented, including: determining a surgical target region in a lens of the eye and applying laser pulses to photodisrupt a portion of the determined target region before making an incision on a capsule of the lens within an integrated surgical procedure. The laser pulses can be applied before making an incision on a cornea of the eye. In some cases, the target region includes the nucleus of the lens. The integrated surgical procedure involves using the same pulsed laser source for three functions: for photodisrupting the target region, for making an incision on the capsule of the lens and for making an incision on the cornea of the eye.
1 . A method for cataract eye surgery, comprising:
determining a surgical target region in a lens of the eye; and
applying laser pulses to photodisrupt a portion of the determined target region
before making an incision on a capsule of the lens, within an integrated surgical procedure.
2 . The method of claim 1 , wherein the applying laser pulses step is performed before making an incision on a cornea of the eye.
3 . The method of claim 1 , wherein the target region includes a nucleus of the lens.
4 . The method of claim 1 , wherein the integrated surgical procedure comprises:
using a pulsed laser source for photodisrupting the target region;
using the same laser source for making an incision on the capsule of the lens; and
using the same laser source for making an incision on the cornea of the eye.
5 . The method of claim 4 , wherein the incisions are one of
a multi-plane incision, a valved incision, a self-sealing incision a partial incision, and a full-thickness incision.
6 . The method of claim 4 , wherein the making of the capsular incision comprises:
creating an essentially closed loop of bubbles to define a capsular lid,
spacing the bubbles along the loop to make the removal of the capsular lid easy.
7 . The method of claim 4 , wherein the integrated surgical procedure comprises:
removing photodisrupted material through the capsular incision and the corneal incision.
8 . The method of claim 4 , wherein the integrated surgical procedure comprises:
inserting an intra ocular lens into the lens capsule through the existing corneal and capsular incisions.
9 . The method according to claim 8 , wherein the integrated surgical procedure comprises:
inflating the lens capsule during the insertion of the intra ocular lens; and
placing a haptic portion of the intraocular lens to optimize at least one of a centration and an anterior-posterior localization of an optic portion of the intraocular lens.
10 . A method according to claim 8 , wherein the integrated surgical procedure comprises:
deflating the lens capsule following the insertion of the intra ocular lens, thereby bringing an anterior portion and a posterior portion of the capsule closer to the intraocular lens in a controlled manner to optimize a centration and an anterior-posterior localization of the intraocular lens.
11 . The method of claim 1 , wherein the photodisruption comprises:
determining a boundary of the target region;
focusing the laser pulses on a posterior region of the target region; and
focusing the laser pulses on a region anterior to the posterior region of the target region.
12 . The method of claim 1 , further comprising:
inserting a trochar into the corneal and the capsular incisions.
13 . The method of claim 12 , wherein:
the trochar is inserted to create an essentially watertight contact with at least one of the cornea and the capsule.
14 . The method of claim 12 , wherein the integrated surgical procedure comprises at least one of:
inserting surgical tools through the trochar;
managing the eye-fluids during a period of the surgery through the trochar; and
inserting the intra ocular lens into the capsule through the trochar.
15 . The method of claim 1 , wherein the integrated surgical procedure comprises
maintaining a shape of a portion of the eye by infusing a physiologically suitable viscoelastic fluid into a volume of the eye.
16 . The method of claim 15 , wherein the maintaining the shape of an eye-portion comprises:
infusing a viscoelastic fluid into the lens in relation to the removal of a photodisrupted nucleus through the capsular incision.
17 . The method of claim 1 , wherein the integrated surgical procedure further comprises:
optically accessing a peripheral area of the lens via an angled mirror.
18 . A method for performing cataract surgery, comprising:
directing a beam of laser pulses with an integrated surgical device to fragment a portion of a lens for removal before making any physical incision on the eye;
performing a partial or full thickness capsular incision to access the fragmented lens portion with the integrated surgical device;
removing the fragmented lens portion from the eye through the incision; and
inserting an intraocular lens into the eye through the incision to a position of the removed fragmented lens portion.
19 . The method as in claim 18 , further comprising:
placing removable trochars to traverse a corneal incision and the capsule incisions to maintain an essentially watertight seal.
20 . An eye-surgical device, comprising:
a multi-purpose pulsed laser, configured:
to be directed at a lens of an eye to fragment a portion of the lens before making a physical incision on the eye; and
to perform a corneal incision and a capsular incision to access the fragmented lens portion with the multi-purpose laser; and
an aspiration device, configured
to remove the fragmented lens portion from the eye through the corneal incision and the capsular incision.