Summary of visual and refractive outcomes of phakic intraocular lens implantation for keratoconus as a single procedure
| Author | Year | Lens type | Lens | Eyes | Follow-up (months) | Age (years) | Spherical equivalent (D) | Astigmatism (D) | Safety index (CDVA) | Efficacy index (UDVA) | Predictability | Stability (D) | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Within ±0.5 D (%) | Within ±1.0 D (%) | ||||||||||||
| Kamiya et al4 | 2008 | Toric posterior chamber | Visian ICL | 2 | 3 | 40, 31 | −13, −9.38 | −6, −2.75 | 1.0, 1.5 (decimal CDVA) | 0.8, 0.9 (decimal UDVA) | 50 | 100 | Unchanged |
| Alfonso et al5 | 2008 | Non-toric posterior chamber | Visian ICL | 25 | 12 | 34.3±6.1 | −8.54±4.15 (sphere) | −1.24±1.19 | 0.12±0.12 logMAR | 0.17±0.19 logMAR | 84 | 100 | NA |
| Alfonso et al6 | 2010 | Toric posterior chamber | Visian ICL | 30 | 12 | 35.2±8.0 | −5.38±3.26 | −3.48±1.24 | 1.16 | 1.07 | 86.7 | 100 | −0.03 |
| Kamiya et al7 | 2011 | Toric posterior chamber | Visian ICL | 27 | 6 | 37.4±7.0 | −10.11±2.46 | −3.03±1.58 | −0.15±0.09 logMAR | −0.09±0.16 logMAR | 85 | 96 | 0.00±0.35 |
| Hashemian et al10 | 2013 | Toric posterior chamber | Visian ICL | 22 | 6 | 25 to 46 | −4.98±2.63 | −2.77±0.99 | 1.40±0.32 | 1.24±0.34 | 68.2 | 90.9 | 0.09±0.21 |
| Park et al12 | 2013 | Toric posterior chamber | Visian ICL | 1 | 20 | 37 | −13.75 | −3.50 | 1.25 | 0.5 | NA | NA | −0.50 |
| Budo et al19 | 2005 | Toric iris-supported | Artisan | 6 | 6 | 26–44 | −13.88 | −3.75 | 1.49 | 1.24 | NA | 67 | NA |
| Leccisotti and Fields20 | 2003 | Non-toric angle-supported | ZSAL-4 | 12 | 12 | 36.8 | −10.23±2.85 | −2.79±1.11 | 1.18 | 0.77 | 67 | 100 | NA |
| Moshirfar et al21 | 2006 | Non-toric iris-supported | Verisyse | 2 | 5, 2 | 56, 52 | −14, −9.25 | −2.50, −4.25 | 20/30 | 20/40, 20/30 | 0 | 50 | NA |
| Kato et al22 | 2011 | Toric and non-toric iris-supported | Artisan | 36 | 12 | 41.8±7.8 | −8.61±3.21 | −2.44±2.25 | 1.16±0.31 | 0.87±0.31 | 63.6 | 83.6 | NA |
| Sedaghat et al23 | 2011 | Toric iris-supported | Artisan | 16 | 14.2±7.8 | 25.4±4.7 | −13.90±4.61 | −2.95±4.06 | 0.11±0.10 logMAR | 0.15±0.13 logMAR | NA | NA | NA |
| Alió et al18 | 2014 | Toric iris-supported | Artisan | 20 | 15 (1–36) | 35.97±9.24 | −9.31±4.20 | −2.53±1.92 | 1.19±0.29 | 0.90±0.26 | 71.15 | 82.69 | No significant change |
| Toric posterior chamber | Visian ICL | 28 | 1.21±0.28 (posterior chamber) | 0.88±0.28 (posterior chamber) | |||||||||
| Non-toric angle-supported | Kelman Duet | 4 | 1.22±0.33 (iris-supported) | 0.96±0.22 (iris-supported) | |||||||||
| Current | Toric posterior chamber | Visian ICL | 21 | 36 | 38.7±6.6 | −9.70±2.33 | −3.21±1.56 | −0.12±0.09 | −0.06±0.11 | 67 | 86 | 0.04±0.33 | |
CDVA, corrected distance visual acuity; D, dioptre; ICL, implantable collamer lenses; logMAR, logarithm of the minimum angle of resolution; NA, not applicable; UDVA, uncorrected distance visual acuity.