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. 2017 Feb 8;17:9. doi: 10.1186/s12886-017-0407-5

Table 4.

Strehl Ratio values for 4.5 mm aperture

Strehl Ratio Spherical IOL Aspheric IOL P-Value
Median 0.2355 0.4870 0.0002*
Minimum 0.2260 0.4430
Maximum 0.2910 0.5080

*Statistically significant difference (p < 0.05, Mann-Whitney-U test)