Posters

Initial experience in expanding multifocality options with a new single piece diffractive multifocal IOL with a +2.50D near ADD power

Poster Details

First Author: F.Cheong MALAYSIA

Co Author(s):    E. Hiew   S. Teoh           

Abstract Details

Purpose:

This study aims to evaluate the efficacy of a new diffractive multifocal intraocular lens (IOL) with a +2.50D near add power in reducing spectacle dependence in patients undergoing cataract surgery. The Acrysof IQ ReSTOR +2.5 IOL is a modified diffractive multifocal lens with a +2.50D near add power that is designed for patients with distance-oriented lifestyles, whose primary visual needs are for distance and intermediate activities. Its design is suited for individuals who are not willing to compromise distance visual quality while desiring a greater range of vision than that provided by monofocal IOLs.

Setting:

Multi-disciplinary private hospital

Methods:

Prospective case series study. Inclusion criteria were eyes with no other co-morbidity. A total of 32 eyes in 24 patients were recruited. Of these, 8 patients had bilateral implantations of the ReSTOR +2.5 IOL and 9 patients had the ReSTOR +3.0 implanted in the other eye for a blended multifocal option. All operations were performed by a single surgeon, with no intra-operative complications. Follow-up period was 6 months. Outcome measures were (i) distance and near visual acuities (ii) patients' perceived symptoms of haloes and glare (iii) patients' spectacle independence and overall satisfaction.

Results:

All 32 eyes (100%) could see 20/30 or better, 30 eyes (94%) managed 20/25 or better and 20 (62.5%) could see 20/20 or better. For near vision, 26% could read J1, 68% managed J2 or better and 100% were comfortable reading J3. All patients with ReSTOR +3.0 implanted in the other eye could see 20/20 distance and read J1 binocularly. Half the patients reported seeing haloes and glare while the other half did not or saw it rarely. The visual disturbances were of no significance to all patients in their routine activities; 90% reported no affect at all and 10% recorded minimal insignificant affect. All patients were spectacle independent for distance, 90% were spectacle free for intermediate activities and nearly 70% did not require spectacles for fine print reading. Regarding patient satisfaction, 80% gave a maximum 5/5 satisfaction score and 20% gave 4/5. With regards to recommending the same type of lens to their friends and relatives, 90% would definitely(5/5) do so and 10% most probably(4/5).

Conclusions:

Predictable refractive outcomes were seen in all eyes, resulting in a high level of spectacle freedom with good post-operative visual acuities for distance and near, achieved in all patients. The near vision capability was better than expected in that a proportion of eyes were able to manage fine print (J1) reading unaided. As predicted, patients were less cognizant of haloes and glare. All patients were not affected to any significant degree by unwanted visual disturbances. In summary, this new single piece multifocal IOL was found to be effective and predictable in providing spectacle freedom to individuals who have distance oriented lifestyles, who desire good distance visual quality with the benefit of a greater range of binocular intermediate and near vision as compared to that provided by conventional monofocal IOLs. FINANCIAL INTEREST: NONE