Fig. 4From: Clinical performance and shape analysis of trifocal intraocular lenses via scanning electron microscopyThe TFNT (a, b, c) and the CNWT (d, e, f) observed by SEM. The edge of CNWT (e) was sharper than the TFNT (b), and diffraction fringes of CNWT (f) was also clear than the TFNT (c)Back to article page