Whole eye optical coherence tomography(OCT) imaging systems and related methods
Whole eye optical coherence tomography (OCT) imaging systems and related methods are disclosed. According to an aspect, an OCT imaging system includes a source having an associated source arm path. Further, the OCT imaging system includes a reference arm coupled to the source arm. Further, the OCT imaging system includes a sample arm having an associated sample arm path and coupled to the source arm. The sample arm includes at least one optical component configured to simultaneously scan both an anterior and posterior portion of an eye of a subject.
1. An optical coherence tomography (OCT) imaging system comprising:
a source having an associated source arm path;
a reference arm coupled to the source arm path;
a sample arm having an associated sample arm path and coupled to the source arm path, wherein at least two polarizing beam splitters are configured to split and recombine to provide two different imaging channels for simultaneously scanning both an anterior and posterior portion of an eye of a subject; and
a first lens group and a second lens group, wherein the at least two polarizing beam splitters are positioned between the first lens group and the second lens group.
2. The OCT imaging system of claim 1 , wherein the source is a laser.
3. The OCT imaging system of claim 1 , wherein the source is a low temporal coherence light source.
4. The OCT imaging system of claim 1 , wherein the reference arm has a single arm path.
5. The OCT imaging system of claim 1 , wherein the reference arm is polarization encoded.
6. The OCT imaging system of claim 1 , further comprising a 4-F telescope positioned along the sample arm path.
7. The OCT imaging system of claim 1 , wherein the at least two beam splitters are configured to split light into linear P-polarized and S-polarized light.
8. The OCT imaging system of claim 1 , wherein the at least two beam splitters are configured to transmit P-polarized light and to reflect S-polarized light.
9. The OCT imaging system of claim 1 , wherein the at least two beam splitters comprise a wire grid polarizer.
10. The OCT imaging system of claim 1 , further comprising an alignment system configured to align the eye for scanning.
11. The OCT imaging system of claim 1 , further comprising at least one processor and memory configured to generate one or more images of the scanned anterior and posterior portion of the eye.
12. A method for imaging an eye of a subject, the method comprising:
providing an optical coherence tomography (OCT) imaging system comprising:
a source having an associated source arm path;
a reference arm coupled to the source arm;
a sample arm having an associated sample arm path and coupled to the source arm path, wherein at least two beam splitters are configured to split and recombine to provide two different imaging channels; and
a first lens group and a second lens group, wherein the at least two beam splitters are positioned between the first lens group and the second lens group;
using the at least two beam splitters to simultaneously scan both an anterior and posterior portion of an eye of a subject; and
generating one or more images based on the scanned anterior and posterior portion of the eye.
13. The method of claim 12 , wherein the source is a low temporal coherence light source.
14. The method of claim 12 , wherein the reference arm has a single arm path.
15. The method of claim 12 , wherein the reference arm is polarization encoded.
16. The method of claim 12 , wherein the OCT imaging system further comprises a 4-F telescope positioned along the sample arm path.
17. The method of claim 12 , wherein the at least two beam splitters are configured to split light into linear P-polarized and S-polarized light.
18. The method of claim 12 , wherein the at least two beam splitters comprise a wire grid polarizer.