Femtosecond laser-assisted astigmatic keratotomy: a review

Table 2 Reviewed articles of FSAK in native eyes

Reference	Type of FSAK	Open wound	Optical zone diameter	Incisional depth	Eyes (no.)	Follow-up	Mean keratometric astigmatism (preoperative) (D)	Mean keratometric astigmatism (postoperative) (D)	% Reduction
Chan et al. (2015) [27]	Penetrating	✗	8 mm	450 μm	54	2 months	1.33 ± 0.57	0.87 ± 0.56	34.60%
Chan et al. (2016) [33]	Penetrating	✗	8 mm	450 μm	50	2 months	1.35 ± 0.48	0.67 ± 0.54	50.40%
Chan et al. (2016) [33]	Penetrating	✗	8 mm	450 μm	50	2 years	1.35 ± 0.48	0.74 ± 0.53	45.20%
Yoo et al. (2015) [25]	Penetrating	✗	9 mm	85%	23	1 month	1.315 ± 0.131	0.963 ± 0.136	26.80%
Yoo et al. (2015) [25]	Penetrating	✗	9 mm	85%	23	5 months	1.315 ± 0.131	0.874 ± 0.135	33.50%
Loffler et al. (2017) [44]	Penetrating	✓	9 mm	80%	27	3 months	0.96 ± 0.26	0.53 ± 0.35	44.80%
Wang et al. (2016) [28]	Penetrating	✓	8 mm	90%	51	1 month (35 eyes)	1.41 ± 0.42	-	46.10%
Wang et al. (2016) [28]	Penetrating	✓	8 mm	90%	51	3 months (28 eyes)	1.41 ± 0.42	-	47.50%
Abbey et al. (2009) [26]	Penetrating	✓	6.75 mm	400 μm	2	1 year	5.92 (OD)	3.6 (OD)	39.20%
Abbey et al. (2009) [26]	Penetrating	✓	6.75 mm	400 μm	2	1 year	5.8 (OS)	2.4 (OS)	58.62%
Venter et al. (2013) [5]	Intrastromal	✗	7 mm	60 μm from epithelium to 80% depth	65	7.6 ± 2.9 months	1.22 ± 0.49	0.58 ± 0.41	52.50%
Day et al. (2016) [29]	Intrastromal	✗	8 mm	20%–80%	319	1 month	1.24 ± 0.44	0.79 ± 0.41	36.30%
Day et al. (2016) [30]	Intrastromal	✗	8 mm	20%–80%	196	1 month	1.21 ± 0.42	0.74 ± 0.38	38.80%
Rückl et al. (2013) [17]	Intrastromal	✗	7.5 mm	100 μm from epithelium and endothelium	15	6 months	1.50 ± 0.47	0.63 ± 0.34	58%

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