Early Clinical Outcomes Of A New Design Of Anterior Capsular Fixated Toric Iol With Swivel Haptics

To study the safety, efficacy and predictability of the new hydrophobic posterior chamber toric IOL with swivel haptics for capsular fixation.

Nethradhama Superspeciality Eye Hospital, Bangalore.

Eight eyes of 6 patients with senile immature cataract and corneal astigmatism more than 1.5 D underwent phacoemulsification with implantation of the anterior capsule fixated topic IOL with swivel haptics. The parameters evaluated at post operative day 1 and at one month were the UDVA, CDVA, subjective refraction, IOP, anterior chamber depth to assess effective lens position, IOL rotation and tilt and decentration (by Pentacam HR). Detailed slit lamp photography was done to asses the position and stability of the swivel haptics. At the one month visit, gonioscopy was done to assess pigment dispersion and UBM for IOL position and stability. In addition, patients were given a subjective questionnaire for dysphotopsia.

The mean pre operative astigmatism was -1.92 ± 1.04 D and at 1 month post operatively it was found to be 0.21 ± 0.33 D. The mean post operative spherical equivalent was 0.27 ± 0.42. Post-operative astigmatism in 5 out of 6 eyes were within -0.25D and one eye was within -0.5D cylinder. The mean IOP on post op day 1 was 15.5 mmHg and at 1 month post operatively, none of the eyes showed signs of pigment dispersion on gonioscopy. The mean post operative ACD at 1 month was 4.067 mm. UBM and slit lamp photography done in all cases showed a stable IOL with the swivel haptics in position. All cases showed the toric IOL in the intended axis at post op 1 month with no rotation. No intra-operative complications noted.

The early clinical outcomes of the anterior capsule fixated topic IOL with swivel haptics show good efficacy and predictability. The IOL shows excellent rotational stability and safety profile. A larger sample size and longer follow up is required to demonstrate the consistency of these results.