Ophthalmic System Pointer Control for OCT Alignment
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Solution Overview
Problem
Existing ophthalmic OCT apparatuses require lengthy adjustments for alignment, focus, and coherence gate positioning, increasing the operational burden on examiners and prolonging the time to capture images.
Innovation Solution
An ophthalmic system with a display control unit and control unit that allows examiners to adjust the working distance, focus, and coherence gate position using a pointer on a display screen, enhancing operability and reducing capture time through efficient mouse operation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If traditional mouse operation is used to adjust alignment, focus, and coherence gate position, then the examiner can make adjustments, but the adjustment time is lengthy and the operational burden is increased
Solution Approach 1:
The patent creates a visual copy of the optical path components (anterior eye portion, fundus, coherence gate) on the display screen as selectable objects. The examiner can directly select and adjust these displayed representations, which correspond to actual physical components, eliminating the need for complex multi-step mouse operations and significantly reducing adjustment time.
Solution Approach 2:
The display screen serves as an intermediary between the examiner and the optical components. By displaying visual representations of the optical path and allowing selection/adjustment through the display interface, the system mediates the control process, making adjustments more intuitive and faster compared to traditional direct mouse control of physical components.
2Manufacturing precision
If multiple adjustments (alignment, focus, coherence gate) are performed sequentially, then each parameter can be optimized, but the total time to capture images is prolonged
Solution Approach 1:
The patent merges multiple adjustment functions (alignment, focus, coherence gate positioning) into a single integrated display interface. All adjustment operations can be performed by selecting and manipulating objects on the same screen, combining what were previously separate adjustment procedures into one unified workflow, thereby maintaining precision while improving efficiency.
Solution Approach 2:
The system performs preliminary visualization of all optical path components on the display screen before the actual image capture. The examiner can preview and adjust all parameters (alignment, focus, gate position) in advance by interacting with the displayed representations, ensuring optimal settings are established before capturing the final image, thus avoiding repeated adjustments during the capture process.
Data Source
AI summary
An ophthalmic system including an ophthalmic apparatus for acquiring an image of an anterior portion of a subject's eye and a tomographic image of the subject's eye includes a display control unit configured to cause a display unit to display the image of the anterior eye portion and the tomographic image, and an instruction unit configured to, if a pointer which indicates a point on the display unit is on the image of the anterior eye portion, give an instruction to change a distance between the subject's eye and the ophthalmic apparatus, and if the pointer is on the tomographic image, give an instruction to change the position of a coherence gate.