Vaulting of Myopic and Toric Implantable Collamer Lenses during Accommodation Measured with Visante Optical Coherence Tomography

Accommodative changes in anterior chamber depth in patients with high myopia

“…Sufficient vault (distance between the posterior surface of the pIOL and the anterior pole of the crystalline lens) is critical because even temporary contact between the PC pIOL and the anterior capsule of the natural lens might cause cataract over the long-term postoperative period. 15 Studies 16,17 have found a decrease in vault with PC pIOL models during accommodation. We found that in some patients with high myopia, accommodative changes in the ACD might be significant, reaching 0.29 mm.…”

Fluid dynamics simulation of aqueous humour in a posterior-chamber phakic intraocular lens with a central perforation

“…However, the quantity of flow in the Hole-ICL was large in a channel running through the hole in the centre, because the distance between the iris and the ICL was narrow. Therefore, the circulation of aqueous humour to the anterior surface of the Several causes of secondary cataracts in patients with conventional ICL have been postulated, including aqueous humour circulation [5,6], pIOL-crystalline lens contact [7,8], low vaulting between the ICL and the crystalline lens [9][10][11], the decreased anterior chamber depth occurring with age [12], myopia [13], and surgical trauma [14]. In particular, Fujisawa et al [5] and Shiratani et al [6] performed histopathological studies that revealed the importance of aqueous humour circulation in the vault between the ICL and the crystalline lens in preventing secondary cataracts.…”

Modulation transfer function of intraocular collamer lens with a central artificial hole

“…Several causes may be involved, including aqueous humour circulation [5], pIOL-crystalline lens contact [13] [14], low vaulting between the ICL and the crystalline lens [15] [16] [17], decreased anterior chamber depth with age [18], myopia [19], and surgical trauma [20]. After improving aqueous humour circulation in the Hole-ICL, Fujisawa [5] reported that no cataract formed when the Hole-ICL was used in porcine eyes.…”