Refractive Outcomes And Visual Performance Of Iol With Controlled Positive Spherical Aberration

Title

To evaluate refractive outcomes for Distance, Intermediate, Near and Visual performance through reading speed test, in patients having bilateral cataract surgery with implants of IOL’s at controlled Spherical aberration (RayOne EMV)

The rotational stability of the Toric IOLs was also followed.

Single Site study

This is a prospective study of 308 eyes (154 patients, 218 Spheric, 90 Toric) undergoing uncomplicated cataract surgery with controlled spherical aberration IOL implantation (RayOne EMV).

Patients were targeted for moderate, micro-monovision with the dominant eye targeted for plano and the non-dominant eye with a -0.5D offset.

The near reading speed test (40 cm) was conducted in monocular and binocular vision, where the acuity determination was the size of the last completely read sentence.

Preliminary test analysis: Tear film, Aberrometry, Lens Tilting, Pupillometry, in addition to standard test.

Where requested a Toric IOL’s with controlled Spherical aberration (RayOne EMV) was implanted

Stable and excellent result in terms of refractive outcomes SEQ.

Mean age was 65 y.o. IOL Power between +10.00D to +28.50D.

Post-op refraction: UDVA 0,1 logMAR in most cases, UNVA monocular 0.5 logRAD, UNVA binocular 0.4 logRAD

Near reading Speed test (40 cm): Monocular 80 w.p.m. at 0.5 logRAD at 40cm, Binocular 80 w.p.m. at 0,4 logRAD at 40 cm.

Result of Toric IOLs: 90 IOLs implanted using Zeiss Callisto Eye, IOL showed good post-op stability and rotation within 3 degree. All the IOLs were rotatable inside the bag both clockwise and counterclockwise

Two patients referred post-surgery negative dysphotopsia that disappeared in a few months.

All patients declare that they have achieved independence from glasses for most of their daily activities.

These results show that a micro-monovision approach, associated with an IOL with controlled Positive Spherical Aberration provides cataract patients with an and increased depth of focus and an interesting near reading speed, in addition to spectacle independence and very good quality of vision in terms of patient satisfaction and absence of photopic phenomena.