Statistical characteristics of aberrations of human eyes after small incision lenticule extraction surgery and analysis of visual performance with individual eye model

Qiqi Lou; Yan Wang; Zhaoqi Wang; Yongji Liu; Lin Zhang; Hui Fang

doi:10.1364/AO.54.007490

Applied Optics
Vol. 54,
Issue 25,
pp. 7490-7493
(2015)
•https://doi.org/10.1364/AO.54.007490

Statistical characteristics of aberrations of human eyes after small incision lenticule extraction surgery and analysis of visual performance with individual eye model

Qiqi Lou, Yan Wang, Zhaoqi Wang, Yongji Liu, Lin Zhang, and Hui Fang

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Qiqi Lou, Yan Wang, Zhaoqi Wang, Yongji Liu, Lin Zhang, and Hui Fang, "Statistical characteristics of aberrations of human eyes after small incision lenticule extraction surgery and analysis of visual performance with individual eye model," Appl. Opt. 54, 7490-7493 (2015)

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- Vision, Color, and Visual Optics
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About this Article
History
- Original Manuscript: July 7, 2015
- Revised Manuscript: August 3, 2015
- Manuscript Accepted: August 3, 2015
- Published: August 21, 2015
Virtual Issues
Virtual Journal for Biomedical Optics Vol. 10, Iss. 9

Abstract

Preoperative and postoperative wavefront aberrations of 73 myopic eyes with small incision lenticule extraction surgery are analyzed in this paper. Twenty-eight postoperative individual eye models are constructed to investigate the visual acuity (VA) of human eyes. Results show that in photopic condition, residual defocus, residual astigmatism, and higher-order aberrations are relatively small. 100% of eyes reach a VA of 0.8 or better, and 89.3% of eyes reach a VA of 1.0 or better. In scotopic condition, the residual defocus and the higher-order aberrations are, respectively, 1.9 and 8.5 times the amount of that in photopic condition, and the defocus becomes the main factor attenuating visual performance.

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2.8 mm				6 mm
Parameter	Defocus (D)	Astigmatism (D)	${RMS}_{H}$ (μm)	Defocus (D)	Astigmatism (D)	${RMS}_{H}$ (μm)
Preop mean	$- 4.57 \pm 1.13$	$- 0.44 \pm 0.42$	$0.038 \pm 0.015$	$- 4.70 \pm 1.13$	$- 0.43 \pm 0.42$	$0.293 \pm 0.088$
Postop mean	$- 0.36 \pm 0.54$	$- 0.25 \pm 0.19$	$0.054 \pm 0.021$	$- 0.69 \pm 0.52$	$- 0.26 \pm 0.23$	$0.459 \pm 0.123$
$p$	$< 0.01$	$< 0.01$	$< 0.01$	$< 0.01$	$< 0.01$	$< 0.01$

Surface	Curvature radius (mm)	Thickness (mm)	Refractive Index (555 nm)	Abbe Number	Semidiameter (mm)
Anterior surface of cornea	7.8	0.55	1.3771	55.8	1.53
Posterior surface of cornea	6.5	3.05	1.3374	52.8	1.5
stop	Infinity	0	1.3374	52.8	1.35
Anterior surface of crystalline lens	10.2	4	1.42	49.8	1.349
Posterior surface of crystalline lens	−6	17.3	1.336	52.8	1.14
retina	−12.5	—	—	—	6

NO.	Type	Defocus (D)	Astigmatism (D)	${RMS}_{H}$ (μm)	VA	UDVA
1	OS	−1.411	−0.044	0.073	0.87	1.2
2	OD	−1.351	−0.501	0.110	0.99	1.2
3	OS	−0.842	−0.626	0.065	1	1.2
4	OD	−0.816	−0.231	0.064	0.93	1.2
5	OS	−0.785	−-0.313	0.013	1.06	1.2
6	OS	−0.754	−0.326	0.061	1.1	1.2
7	OD	−0.699	−0.217	0.068	1.35	1.2
8	OS	−0.61	−0.106	0.037	1.17	1.2
9	OD	−0.58	−0.342	0.073	1.36	0.9
10	OS	−0.555	−0.094	0.080	1.17	1.5
11	OD	−0.453	−0.388	0.054	1.54	1.2
12	OS	−0.429	−0.148	0.069	1.58	1.2
13	OS	−0.402	−0.437	0.032	1.23	1.2
14	OS	−0.385	−0.168	0.091	1.47	1.2
15	OD	−0.323	−0.489	0.049	1.41	1.5
16	OD	−0.244	−0.303	0.034	1.39	1.2
17	OS	−0.222	−0.431	0.035	1.42	1.2
18	OD	−0.164	−0.092	0.078	1.57	1.2
19	OD	−0.131	−0.038	0.064	1.6	1.5
20	OS	−0.086	−0.144	0.028	1.57	1.5
21	OS	−0.012	−0.221	0.064	1.53	1.2
22	OD	0.089	−0.387	0.058	1.51	1.2
23	OD	0.148	−0.155	0.048	1.53	1.2
24	OS	0.187	−0.175	0.050	1.6	1.5
25	OS	0.262	−0.288	0.047	1.46	1.5
26	OD	0.352	−0.195	0.084	1.47	1.5
27	OD	0.454	−0.042	0.060	1.43	1.5
28	OS	0.5	−0.178	0.101	1.49	1.5

2.8 mm				6 mm
Parameter	Defocus (D)	Astigmatism (D)	${RMS}_{H}$ (μm)	Defocus (D)	Astigmatism (D)	${RMS}_{H}$ (μm)
Preop mean	$- 4.57 \pm 1.13$	$- 0.44 \pm 0.42$	$0.038 \pm 0.015$	$- 4.70 \pm 1.13$	$- 0.43 \pm 0.42$	$0.293 \pm 0.088$
Postop mean	$- 0.36 \pm 0.54$	$- 0.25 \pm 0.19$	$0.054 \pm 0.021$	$- 0.69 \pm 0.52$	$- 0.26 \pm 0.23$	$0.459 \pm 0.123$
$p$	$< 0.01$	$< 0.01$	$< 0.01$	$< 0.01$	$< 0.01$	$< 0.01$

Surface	Curvature radius (mm)	Thickness (mm)	Refractive Index (555 nm)	Abbe Number	Semidiameter (mm)
Anterior surface of cornea	7.8	0.55	1.3771	55.8	1.53
Posterior surface of cornea	6.5	3.05	1.3374	52.8	1.5
stop	Infinity	0	1.3374	52.8	1.35
Anterior surface of crystalline lens	10.2	4	1.42	49.8	1.349
Posterior surface of crystalline lens	−6	17.3	1.336	52.8	1.14
retina	−12.5	—	—	—	6

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Applied Optics