Table 6 Refractive lens extraction in astigmatism with implantation of toric IOLs (visual acuities is decimal values/ decimal scale)
From: Refractive lens exchange in modern practice: when and when not to do it?
Author,year | No. of eyes/patients/mean age(years) | Mean follow-up(months) | Keratometry(K1,K2)(D)/Axial length(mm)/Mean IOL power(D) | Preop SE/mean defocus equivalent/mean refractive cylinder(D) | Postop SE/mean defocus equivalent/mean refractive cylinder(D) | PreoperativeCDVA | PostoperativeUCVA | Postoperative,CDVA |
|---|---|---|---|---|---|---|---|---|
Sun et al., 2000 (retrospective) [66] | Toric group: 130/99/72 122 eyes – cataract surgery 8 eyes – RLE Non-toric group: 51/45/ N/R | 6.9 | N/R K2-K1 = 2.59 ± 0.82 (total) | Mean refractive cylinder preop: Toric group: 2.57 ± 1.15 Non–toric group: 2.58 ± 0.89 | Toric group: Mean SE: -0.51 ± 0.65 refractive cylinder: -1.03 ± 0.79 Non-toric group: Mean SE: -0.52 ± 0.78 Refractive cylinder: -1.49 ± 0.75 | The authors only mention preop UCVA: Toric group: 0.74 ± 0.25 logMAR Non-toric group: 0.78 ± 0.30 logMAR Preop BCVA – N/R | Toric group: 84% of eyes ≥0.5 Non-toric group: 76% of eyes ≥0.5 | The authors only mention postop UCVA: Toric group: 69% ≥0.66 Non-toric group: 70.3% ≥0.66 Postop BCVA- N/R |
Jaimes et al., 2011 (retrospective) [68] | 19/13/48.15 12- keratoconus 1- pellucid marginal degeneration | 7.89 | Mean K readings: 46.31 ± 3.39 AL – N/R IOL: AcrySof ToricSN60T3-T9 mean power =14.9 | Sphere: -5.25 ± 6.40 Cylinder: +3.95 ± 1.30 SE refraction: -7.10 ± 6.41 | Sphere: +0.22 ± 1.01 Cylinder: +1.36 ± 1.17 SE refraction: -0.46 ± 1.12 | CDVA: 0.28 ± 0.55 logMAR | Postop UDVA 0.29 ± 0.23 logMAR | CDVA: 0.11 ± 0.12 logMAR |
Leccisotti, 2006 [69] | 34/20/56.7 | 17.4 | N/R | -11.0 ± 4.65 /12.0 ± 4.64/1.86 ± 1.39 | -1.31 ± 1.08 /1.94 ± 1.57/1.22 ± 1.37 | 0.55 ± 0.23 | 0.48 ± 0.25 | 0.76 ± 0.23 at 12 months |
Ruiz-Mesa et al., 2009 (prospective) [67] | 32/19/60.1 | 6 | K1 = 43.47 ± 1.20 K2 = 45.75 ± 1.41 AL =23.54 ± 2.04 IOL power =20.87 ± 5.99 | Mean refractive sphere: -0.70 ± 5.32 Mean refractive cylinder: -2.46 ± 0.99 | Mean refractive sphere: -0.007 ± 0.61 Mean refractive cylinder: -0.53 ± 0.30 | 0.87 ± 0.10 | 0.89 ± 0.09, 56.3% of eyes ≥1.00 84.3% of eyes ≥0.80 | 0.95 ± 0.09 |
Pop et al., 2001 (retrospective) [70] | 65/55/N/R RLE for hyperopia 31 eyes – retreated with PRK 34 eyes- retreated with LASIK | 12 | Mean K readings: 43.23 ± 1.92 Mean AL: 21.33 Mean IOL power: 32.7 ± 6.0 | Preop SE: 3.1% of eyes within ±0.5 D of emmetropia 4.6% of eyes within ±1.0 D of emmetropia | 96% of eyes within ±2.0 D of emmetropia 79% of eyes within ±1.0 D of emmetropia 51% of eyes within ±0.5 D of emmetropia | 18.5% of eyes ≥1.0 before RLE 60.9% of eyes ≥1.0 before laser adjustment | Postop UDVA: 85% of eyes ≥0.5 46% of eyes ≥1.0 | CDVA at 12 months: 100% ≥0.5 after PRK 95.7% ≥0.5 after LASIK |