Problems testing diffractive intraocular lenses with Shack-Hartmann sensors

Jim Schwiegerling; Edward DeHoog

doi:10.1364/AO.49.000D62

Problems testing diffractive intraocular lenses with Shack–Hartmann sensors

Jim Schwiegerling and Edward DeHoog

Applied Optics
Vol. 49,
Issue 16,
pp. D62-D68
(2010)
•https://doi.org/10.1364/AO.49.000D62

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Jim Schwiegerling and Edward DeHoog, "Problems testing diffractive intraocular lenses with Shack-Hartmann sensors," Appl. Opt. 49, D62-D68 (2010)

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Related Topics
Table of Contents Category
- Vision Optics
Optics & Photonics Topics
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The topics in this list come from the OSA Optics and Photonics Topics applied to this article.
Previously assigned OCIS codes
- Diffractive optics (050.1970)
- Phase measurement (120.5050)
- Visual optics, ophthalmic instrumentation (330.7327)

About this Article
History
- Original Manuscript: December 11, 2009
- Revised Manuscript: February 5, 2010
- Manuscript Accepted: February 22, 2010
- Published: March 15, 2010
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Virtual Journal for Biomedical Optics Vol. 5, Iss. 10

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Abstract

Shack–Hartmann wavefront sensors have found widespread application for testing ocular aberrations. These sensors provide an accurate map of the wavefront emerging from an eye in most cases. However, there is a growing class of patients with diffractive intraocular lenses that will potentially be measured incorrectly with Shack–Hartmann devices. We explore the pitfalls of measuring diffractive lenses with this technology.

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Ring Number j	Radial Distance $r_{j}$	Local Grating Period d
0	0	0.524404
1	0.524404	0.217215
2	0.74162	0.166675
3	0.908295	0.140514
4	1.048809	0.123795
5	1.172604	0.111919
6	1.284523	0.10292
7	1.387444	0.095796
8	1.48324	0.089974
9	1.573213	0.085099
10	1.658312	0.08094
11	1.739253	0.077337
12	1.81659	0.074177
13	1.890767	0.071375
14	1.962142	0.068868
15	2.03101	0.066608
16	2.097618	0.064557
17	2.162175	0.062685
18	2.22486	0.060966
19	2.285826	0.059382
20	2.345208	0.057915
21	2.403123	0.056552

Lenslet Position	Nearest j	Local Grating d	$Δ x (λ = 550 nm)$	$Δ x (λ = 780 nm)$
0	0	0.524404424	0.015732141	0.744616174
0.4	1	0.217215425	0.03798085	0.30811496
0.8	2	0.166675258	0.049497718	0.236403887
1.2	5	0.111919318	0.073714706	0.158728911
1.6	9	0.085099123	0.096947795	0.120687414
2	15	0.066608095	0.123863042	0.094461042
2.4	21	0.056551807	0.145890832	0.080198098

Ring Number j	Radial Distance $r_{j}$	Local Grating Period d
0	0	0.524404
1	0.524404	0.217215
2	0.74162	0.166675
3	0.908295	0.140514
4	1.048809	0.123795
5	1.172604	0.111919
6	1.284523	0.10292
7	1.387444	0.095796
8	1.48324	0.089974
9	1.573213	0.085099
10	1.658312	0.08094
11	1.739253	0.077337
12	1.81659	0.074177
13	1.890767	0.071375
14	1.962142	0.068868
15	2.03101	0.066608
16	2.097618	0.064557
17	2.162175	0.062685
18	2.22486	0.060966
19	2.285826	0.059382
20	2.345208	0.057915
21	2.403123	0.056552

Lenslet Position	Nearest j	Local Grating d	$Δ x (λ = 550 nm)$	$Δ x (λ = 780 nm)$
0	0	0.524404424	0.015732141	0.744616174
0.4	1	0.217215425	0.03798085	0.30811496
0.8	2	0.166675258	0.049497718	0.236403887
1.2	5	0.111919318	0.073714706	0.158728911
1.6	9	0.085099123	0.096947795	0.120687414
2	15	0.066608095	0.123863042	0.094461042
2.4	21	0.056551807	0.145890832	0.080198098

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Figures (6)

Tables (2)

Equations (6)

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