US 11,779,202 B2
Systems and methods for automated subjective refractions
Matthew Grossberg, Atlantic Beach, FL (US)
Assigned to Lombart Brothers, Inc., Jacksonville, FL (US)
Filed by Lombart Brothers, Inc., Jacksonville, FL (US)
Filed on Sep. 16, 2020, as Appl. No. 17/22,539.
Claims priority of provisional application 62/901,691, filed on Sep. 17, 2019.
Prior Publication US 2021/0076928 A1, Mar. 18, 2021
Int. Cl. A61B 3/028 (2006.01); A61B 3/032 (2006.01); A61B 3/12 (2006.01)
CPC A61B 3/0285 (2013.01) [A61B 3/032 (2013.01); A61B 3/12 (2013.01)] 18 Claims
OG exemplary drawing
 
1. A system for administering a subjective refraction test on a patient, the system comprising:
a phoropter having a plurality of lenses that are adjustable to affect the vision of the patient to administer a plurality of sub-tests of the subjective refraction test;
a display device configured to display a plurality of visual references viewable by the patient through the plurality of lenses of the phoropter; and
a computing device coupled to the phoropter and the display device, the computing device configured to:
generate and display a script and a first plurality of response fields, the script corresponding to a first set of conditions for a first sub-test of the plurality of sub-tests, the first set of conditions corresponding to a first visual reference viewed by the patient through a first combination of the plurality of lenses of the phoropter, the script being displayed for reading by a technician to the patient and the first plurality of response fields configured to receive first feedback from the patient indicative of the patient's vision under the first set of conditions;
receive a first input indicative of the patient's vision under the first set of conditions;
automatically generate and display, based on the first input, an updated script and the first plurality of response fields, the updated script corresponding to an updated first set of conditions for the first sub-test of the plurality of sub-tests, the updated first set of conditions corresponding to an updated first visual reference viewed by the patient through a second combination of the plurality of lenses of the phoropter;
receive a second input indicative of the patient's vision under the updated first set of conditions;
iteratively update the script and the second combination of the plurality of lenses, and maintain the first plurality of response fields to receive feedback from the patient until a predefined number of responses are received during the first sub-test to determine an endpoint for the first sub-test of the plurality of sub-tests;
communicate a signal to the phoropter and the display device causing the patient to be presented with a second set of conditions to administer a second sub-test of the plurality of sub-tests in response to the determined endpoint for the first sub-test, the second set of conditions comprising a second visual reference viewed by the patient and a third combination of the plurality of lenses of the phoropter;
automatically generate and display, based on the determined endpoint for the first sub-test, a second script and a second plurality of response fields, the second script corresponding to the second set of conditions and the second plurality of response fields configured to receive second feedback indicative of the patient's vision under the second set of conditions, wherein the second script provides a prompt for updated patient feedback under the second set of conditions;
receive an updated input corresponding to the updated patient feedback; and
determine an endpoint for the second sub-test of the plurality of sub-tests based on a determined a visual acuity during the second sub-test matching a predefined visual acuity value.