Presbyopic correction on the cornea

Table 2 Summary of clinical studies in multifocal ablations

Study	n	Follow-up	UDVA	UNVA	DCNVA	CDVA	CNVA	Refr.Outc.	Retreat.
Vinciguerra et al. [3]	3	2Y	---	J3 100%	---	---	---	---	---
Alió et al. [10]	50	6M	20/20	J4	J5	14% < −2lns	14% < −2lns	64% ± 0.5DS	12%
Alió et al. [10]	50	6M	88% > 20/25	92% > J3	28% > J3	14% < −2lns	14% < −2lns	64% ± 0.5DS	12%
Jung SW et al. [28]	28	6M	93% > 20/25	64% > J3	---	---	---	---	---
Epstein and Gurgos [16]	103	1Y	74% > 20/25	74% > J2	---	---	---	---	28%
Jackson et al. [25]	50	1Y	100% > 20/25	86% > J2	70% > +2lns	10% < −2lns	8% < −2lns	88% ± 0.5DS	---
Grand total	234	6M-2Y	20/20	J4	J5	12% < −2lns	11% < −2lns	76% ± 0.5DS	21%
Grand total	234	6M-2Y	87% > 20/25	81% > J3	49% > +2lns	12% < −2lns	11% < −2lns	76% ± 0.5DS	21%

UDVA: uncorrected distance visual acuity, UNVA: uncorrected near visual acuity, n: number of patients in the study, DCNVA: distance-corrected near visual acuity, CDVA: corrected distance visual acuity, CNVA: corrected near visual acuity, Refr.Outc.: refractive outcome, Retreat.: retreatment rate, M: months, Y: year(s), J: Jaeger scale for near vision, lns: Snellen lines, DS: dioptre sphere.

ISSN: 2326-0254