SYSTEM AND METHOD FOR CALCULATING LIMBAL RELAXING INCISIONS
A method and system for calculating ocular incision positions to address astigmatism in an eye. The present design includes providing biometric information, determining an incision location:and angle based on the biometric information and a nomogram such as a Donnenfeld nomogram, relating astigmatism conditions and incision conditions, and presenting the incision location and angle to a user, such as via a graphical user interface. The design is intended to be employed on a general purpose computer and the utility employed, an LRI (Limbal Relaxation Incision) calculator utility may be executed to compute the desired results based on a set of eye measurement inputs.
1 . A system configured to perform ocular incision calculations, comprising:
a computing device comprising:
a Limbal Relaxation Incision (LRI) calculator utility; and
a user interface configured to obtain information from a user and interface with the LRI calculator utility by to present the user with at least one potential incision;
wherein the LRI calculator utility is configured to calculate LRIs based on a nomogram relating astigmatism conditions to incisions.
2 . The system of claim 1 , wherein said user interface comprises a graphical user interface (GUI) for input and output of patient biometric data for LRI calculator utility operations.
3 . The system of claim 1 , wherein said user interface comprises a text based interface for receipt of patient biometric data employed in LRI calculator utility operations.
4 . The system of claim 1 , wherein the nomogram is a Donnenfeld Nomogram.
5 . The system of claim 1 , wherein the LRI calculator utility operations determine at least one incision and incision angle.
6 . The system of claim 5 , wherein the incision and incision angle are determined without phacoemulsification induced astigmatism.
7 . The system of claim 5 , wherein said LRI and Incision Angle are determined with phacoemulsification induced astigmatism.
8 . The system of claim 1 , wherein the computing device further comprises a memory configured to store LRI calculation data and values employable by said LRI calculator utility.
9 . A method configured for execution on a general purpose computing device for calculating Limbal Relaxing Incision (LRIs), comprising:
inputting an individual's biometric information;
determining LRI parameters from said individual's biometric information and applying data from a nomogram relating astigmatism conditions and LRIs to determine at least one LRI and one incision angle; and
presenting the LRI and incision angle to a user.
10 . The method of claim 9 , wherein said biometric information includes the individual's keratometry measurement readings.
11 . The method of claim 9 , wherein said nomogram is a Donnenfeld Nomogram.
12 . The method of claim 11 , wherein said LRI and Incision Angle are determined without phacoemulsification induced astigmatism.
13 . The method of claim 11 , wherein said LRI and Incision Angle are determined with phacoemulsification induced astigmatism.
14 . The method of claim 9 , wherein presenting occurs using graphical user interface configured to show the LRI and angle superimposed over a visual representation of an eye.
15 . A method configured for execution on a general purpose computing device for calculating ocular incisions to address astigmatism in an eye, comprising:
providing biometric information;
determining an incision location and angle based on said biometric information and a nomogram relating astigmatism conditions and incision conditions; and
presenting the incision location and angle to a user.
16 . The method of claim 15 , wherein said biometric information includes keratometry measurement readings.
17 . The method of claim 15 , wherein said nomogram is a Donnenfeld Nomogram.
18 . The method of claim 17 , wherein said incision location and angle are determined for a situation without phacoemulsification induced astigmatism.
19 . The method of claim 17 , wherein said incision location and angle are determined for a situation with phacoemulsification induced astigmatism.
20 . The method of claim 15 , wherein presenting occurs using graphical user interface configured to show the incision location and angle superimposed over a visual representation of an eye.