Abstract: Apparatus for testing a patient's visual field, the apparatus comprising: means for recording the results of the patient's responses to one or more visual field targets (5) presented during a visual field test; and a fixation loss switch activatable by an observer observing the patient during the visual field test for identifying periods of fixation loss by the patient. The results recorded during periods of fixation loss are identified as being unreliable. Also disclosed is a method of testing a patient's visual field.

Abstract: A method for testing a patient's (2) visual field using testing apparatus. A fixation target is provided on a display (3) at a known target position and the patient's (2) direction of gaze is tracked using an eye tracker to determine the patient's point of regard. A marker (5) is provided on the display (3) indicating the patient's (2) point of regard, where the marker (5) moves with movement of the patient's (2) point of regard. It is detected when the marker (5) is moved to the fixation target and a new target is then provided on the display at a further known target position. The new target is recorded as detected if the marker (5) is moved to the new target, with the new target then becoming the fixation target. The steps are repeated for further new targets for determining the patient's (2) visual field based on the positions of the new targets that have been detected.

Abstract: A method for testing a patient's (2) visual field using testing apparatus. A fixation target is provided on a display (3) at a known target position and the patient's (2) direction of gaze is tracked using an eye tracker to determine the patient's point of regard. A marker (5) is provided on the display (3) indicating the patient's (2) point of regard, where the marker (5) moves with movement of the patient's (2) point of regard. It is detected when the marker (5) is moved to the fixation target and a new target is then provided on the display at a further known target position. The new target is recorded as detected if the marker (5) is moved to the new target, with the new target then becoming the fixation target. The steps are repeated for further new targets for determining the patient's (2) visual field based on the positions of the new targets that have been detected.

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.

Abstract: Apparatus for testing a patient's visual field, the apparatus comprising: means for recording the results of the patient's responses to one or more visual field targets (5) presented during a visual field test; and a fixation loss switch activatable by an observer observing the patient during the visual field test for identifying periods of fixation loss by the patient. The results recorded during periods of fixation loss are identified as being unreliable. Also disclosed is a method of testing a patient's visual field.

Abstract: A method of ocular testing is provided using a testing apparatus having a display (2) and a control means (6, 17) for controlling movement of a cursor (7). The method comprises providing a fixation target (T), detecting when an observer (1) moves the cursor (7) over the fixation target, and once the cursor has been moved over, providing a new target on the display (2). The observer (1) is then encouraged to move the cursor (7) over the new target, this then becoming the fixation target. If the observer (1) does not move the cursor (7) over the new target, it is determined that the new target falls outside the observer's visual field. The above is then repeated to build up a visual field of the observer (1) based on the detected and undetected target positions.

Abstract: A method of ocular testing is provided using a testing apparatus having a display (2) and a control means (6, 17) for controlling movement of a cursor (7). The method comprises providing a fixation target (T), detecting when an observer (1) moves the cursor (7) over the fixation target, and once the cursor has been moved over, providing a new target on the display (2). The observer (1) is then encouraged to move the cursor (7) over the new target, this then becoming the fixation target. If the observer (1) does not move the cursor (7) over the new target, it is determined that the new target falls outside the observer's visual field. The above is then repeated to build up a visual field of the observer (1) based on the detected and undetected target positions.