Method and apparatus for testing a patient's visual field
AssigneeIbisVision Limited
InventorBLAIR DONALDSON
Life of this patent
Estimating the term…
Abstract
A method and apparatus for testing a patient's visual field. The testing apparatus comprises a display (3) and a patient input device (9). A home target (19) is presented on the display (3), along with a cursor (21) being moveable under control of the patient input device (9). Once the cursor (21) is moved to the home target (19), a visual field target (11) is presented on the display (3) at a first position. The visual field target (11) is recorded as detected if the cursor (21) moves a predetermined distance towards the visual field target (11). The step is repeated for further visual field targets (11) at further positions for determining the patient's visual field based on the positions of the visual field targets (11) that have been detected.
Claims21
A method for testing a patient's visual field using a testing apparatus having a display and a patient input device, the method comprising the steps of:
- a) presenting a home target on the display;
- b) displaying a cursor on the display, the cursor being moveable by the patient using the patient input device;
- c) once the cursor is moved to the home target, presenting a visual field target on the display at a first position;
- d) recording the visual field target as detected if the patient moves the cursor a predetermined distance towards the visual field target;
- and
- e) repeating steps c) and d) for further visual field targets at further positions for determining the patient's visual field based on the positions of the visual field targets that have been detected.
A non-transient computer readable medium containing program instructions for causing a computer to implement a method for testing a patient's visual field using a testing apparatus having a display and a patient input device, the program instructions comprising:
- a) instructions for presenting a home target on the display;
- b) instructions for displaying a cursor on the display, the cursor being moveable by the patient using the patient input device;
- c) instructions for, once the cursor is moved to the home target, presenting a visual field target on the display at a first position;
- d) instructions for recording the visual field target as detected if the patient moves the cursor a predetermined distance towards the visual field target;
- and
- e) instructions for repeating steps c) and d) for further visual field targets at further positions for determining the patient's visual field based on the positions of the visual field targets that have been detected.
An apparatus for testing a patient's visual field, the apparatus comprising:
- a display;
- a patient input device;
- a control unit configured to (a) present a home target on the display;
- (b) display a cursor on the display, the cursor being moveable by the patient using the patient input device;
- and (c) present, once the cursor is moved to the home target, a visual field target on the display at a first position;
- and
- a memory for recording the visual field target as detected if the patient moves the cursor a predetermined distance towards the visual field target,
- wherein the control unit is further configured to display further visual field targets at further positions and the memory is for recording each of the further visual field targets as detected if the patient moves the cursor the predetermined distance towards the respective one of the further visual field targets.
Dependencies are inferred from the claim text.