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Table 1 Comparison of the two methods of phakic intraocular lens (PIOL) implantation

From: A novel ophthalmic viscosurgical device-free phakic intraocular lens implantation makes myopic surgery safer

 OVD-free PIOL implantationStandard PIOL implantation
Number of side port(s)21, or none
OVD usageNoYes
OVD removalNoYes
Unfolding of the PIOLQuickSlow
Consumption of BSSLessMore
Duration of surgeryShortLong
  1. OVD = Ophthalmic Viscosurgical Device