Three-dimensional imaging in ophthalmology refers to techniques that reconstruct volumetric views of ocular structures from multiple cross-sectional or depth scans. OCT and Scheimpflug systems commonly generate such datasets.
Acquisition
Series of adjacent scans are captured across the area of interest and combined into a 3D cube. Software allows viewing from different angles, slicing through any plane, and measuring volumes or surface shapes.
- Provides comprehensive representation of retina, optic nerve, or anterior segment
- Allows segmentation of specific layers or regions
- Facilitates detection of focal lesions and spatial relationships
- Data storage enables longitudinal volume comparisons
Clinical Benefits
Three-dimensional imaging improves understanding of complex pathologies such as macular holes, epiretinal membranes, and angle structures. It also aids surgical planning and teaching.
- Volume metrics can track oedema resolution or atrophy progression
- Virtual reconstructions support communication with patients and trainees
- 3D datasets underpin many automated analysis tools
- Image quality depends on acquisition speed, fixation, and segmentation accuracy
