Myopic Correction with Iris-Fixated Phakic Intraocular Lenses: Twelve-Year Results

Table 4

Efficacy and safety indices.

Time (years after the implantation)	1	2	5	12
Efficacy indices (EI)	1.06	1.03	1.03	0.96
Mean postoperative UDVA/mean preoperative CDVA	—	—	—	—
Safety indices (SI)	1.10	1.10	1.10	1.10
Mean postoperative CDVA/mean preoperative CDVA	—	—	—	—

UCVA: uncorrected distance visual acuity; CDVA: corrected distance visual acuity.