IP Library Granted Patent US 9,968,295
Granted Patent B2
US 9,968,295 · App. 14/312,187 · Granted May 15, 2018

Surgical guidance and planning software for astigmatism treatment

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Quick Facts
Patent No.
US 9,968,295
App. No.
14/312,187
Granted
May 15, 2018
Kind
B2
Abstract

Software for calculating an astigmatism treatment is operable upon execution to perform the following steps: receiving an initial primary incision position; determining a power and orientation for a toric intraocular lens (IOL) to treat an astigmatism of an eye based on the initial primary incision position; determining an adjusted primary incision position based on the power and the orientation for the toric IOL to further reduce the astigmatism; and generating an output comprising the adjusted primary incision position.

Claims (20)

1. An apparatus, comprising:

one or more processing modules operable to execute software embodied in a non-transitory computer-readable medium, the software operable when executed to perform the following steps:

receiving an initial primary incision position;

receiving a surgically induced astigmatism value corresponding to the initial primary incision position;

determining, based on an amount of astigmatism to be corrected for an eye and the surgically induced astigmatism value corresponding to the initial primary incision position, a power and orientation for a toric intraocular lens (IOL);

determining, based on an amount of post-surgical astigmatism associated with the toric IOL having the determined power and orientation and the surgically induced astigmatism value corresponding to the initial primary incision position, an adjusted primary incision position, wherein a surgically induced astigmatism value corresponding to the adjusted primary incision position reduces the amount of post-surgical astigmatism; and

generating an output comprising the adjusted primary incision position; and

a laser system communicatively coupled to the one or more processing modules, the laser system operable to:

receive the output comprising the adjusted primary incision position; and

in response to receiving the output, incise a cornea of a patient to create the primary incision at the adjusted primary incision position.

2. The apparatus of claim 1 , wherein the software is further operable when executed to receive at least one secondary incision position, wherein the step of determining the power and the orientation of the toric IOL is also based on the at least one secondary incision position.

3. The apparatus of claim 1 , wherein:

the software is further operable when executed to determine a position for at least one limbal relaxing incision based on the power and the orientation for the toric IOL and generate an output comprising the position for the at least one limbal relaxing incision; and

the laser system is further operable to:

receive the output comprising the position for the at least one limbal relaxing incision; and

incise the cornea of the patient to create the at least one limbal relaxing incision.

4. The apparatus of claim 1 , wherein the amount of astigmatism to be corrected for the eye is determined based on patient biometric data retrieved from a memory.

5. The apparatus of claim 4 , wherein:

the apparatus further comprises a biometer operable to generate the patient biometric data; and

the patient biometric data is imported into the memory from the biometer via an interface.

Assignments (6)
CONFIRMATORY DEED OF ASSIGNMENT EFFECTIVE APRIL 8, 2019 Recorded Dec 10, 2019
From: NOVARTIS AG
To: ALCON INC.
Reel/Frame 051454/0788 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Jun 23, 2014
From: CHAUDHARY, GAUTAM; SRASS, HADI
To: ALCON LENSX, INC.
Reel/Frame 033159/0870 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Jun 23, 2014
From: HOLLADAY, JACK T.
To: ALCON LENSX, INC.
Reel/Frame 033159/0913 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Jun 23, 2014
From: SARAYBA, MELVIN
To: ALCON RESEARCH, LTD.
Reel/Frame 033159/0981 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Jun 23, 2014
From: ALCON LENSX, INC.
To: NOVARTIS AG
Reel/Frame 033160/0015 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Jun 23, 2014
From: ALCON RESEARCH, LTD.
To: NOVARTIS AG
Reel/Frame 033160/0054 →