Treatment Of Negative Dysphotopsia With Supplementary Implantation Of A Sulcus-Fixated Intraocular Lens

Our aim was to evaluate the resolution of negative dysphotopsia after supplementary implantation of a sulcus fixated intraocular lens (IOL). (Cristalens REVERSO,CRISTALENS INDUSTRIE)

Instituto de Microcirugía Ocular (IMO Miranza) 

 A 58 Y.O. female patient  underwent uneventful phacoemulsification with IOL implantation in the capsular bag (IOL Model Hoya 254)  A Cristalens REVERSO IOL 
with power of 0.5D was used in this case and placed in the ciliary sulcus. Complaints of dysphotopsia were noted only before surgery and disappeared after each followup visit. Evaluation included uncorrected (UDVA) and corrected (CDVA) distance visual acuity, manifest refraction,Goldman applanation tonometry, slit-lamp examination,Scheimpflug photography (Pentacam, Oculus Optikgeräte GmbH, Wetzlar, Germany) , aberrometry through dinamic retinoscopy with OPD Scan III and anterior segment OCT were perfomed. 

Negative dysphotopsias resolved completely. There was no significant change in CDVA, spherical equivalent refraction (SE) and IOP after surgery.

Anterior chamber depth (ACD) and volume were significantly reduced.  All iridocorneal angle measurements were reduced, and this was significant for angle opening distances.

Supplementary implantation of a Cristalens Reverso IOL can successfully treat negative dysphotopsia. The reduction in anterior segment dimensions in combination with the displacement of light rays by the rounded edges of a Reverso IOL may contribute to the resolution of symptoms.