Management of Early IOP Rise After Implantation of Latest Model Posterior Chamber Phakic IOL
Narrative Responses:
Purpose
To idenitfy and manage early postop built up IOP in the posterior chamber phakic IOL.
Methods
Twenty consecutive eyes of 10 patients were analyzed after the implantation of a new model of collagen copolymer posterior chamber phakic intraocular lens (pIOL) and another 20 eyes with the old version phakic one. Main outcome measures uncorrected (UDVA) and corrected (CDVA) distance visual acuities, refraction, and postoperative complications and check for elevated IOP and its etology.
Results
The uncorrected visual acuity was 20/40 or better in all cases and 55 % 20/22 or better. At 12 months, mean postoperative spherical equivalent was -0.5 D, mean cylinder of -0.65 D. No eyes lost more than 2 lines of CDVA; 33 eyes maintained or gained 1 or more lines. There were no complications or adverse events. In the old version phakic ICL 25 % of cases had elevated IOP, causes of elevated IOP was Peripheral Iridotomies (too small, too peripheral, not patent, blocked by visco, Retained viscoelastic and Oversized ICL). No cases with the new V4C had elevated IOP.
Conclusion
The new modality of the phakic ICL shown to be a safe new technology with effective improvement of refraction and visual acuity and non-elevated IOP.