Fig. 1. Relative position of compact sclera angiography device

Fig. 2. Model of imaging device

Fig. 3. Optical path of compact sclera angiography device

Fig. 4. Structure of compact sclera angiography device. (a) Integrated optical device; (b) section view of imaging device

Fig. 5. Equivalent linear optical path diagram in vacuum

Fig. 6. Subgraph shape and distribution diagram

Fig. 7. Simulation diagram of image spatial resolution

Fig. 8. Simulation diagram of system field angle

Fig. 9. Simulation diagram of system depth of field

Fig. 10. Schematic of depth of field simulation for microlens section

Fig. 11. Main lens and microlens parameter setting

Fig. 12. Image of scleral vessels

Fig. 13. Optical system structure

Fig. 14. Simulation result

Fig. 15. Partial enlargement of eye-striae region in single subgraph

Fig. 16. Evaluation results of transversal image quality. (a) Modulation transfer function curves; (b) dot plot