![]() ![]() ![]() Further, he reported a mean halo size of 33.06 ± 14.25, mean halo intensity of 38.00 ± 18.51, mean glare size of 23.85 ± 10.43, and mean glare intensity of 42.23 ± 13.22. ![]() Similar results for the EDOF Mini WELL were reported by Auffarth et al., in 2020: Mean UDVA was -0.01 ± 0.15 UIVA was 0.03 ± 0.10, and UNVA was 0.10 ± 0.11 logMAR. Caparas said that all of the studied IOLs show similar, extremely low halo and glare with logCS (contrast sensitivity) ranging from 1.67 to 1.82, which is closer to monofocal contrast sensitivity than a diffractive multifocal. Further, with WELL Fusion (and the Mini WELL PROXA) near vision at 33 cm was better than -0.1. For quantity of vision, binocular distance (4 m) was better than -0.1 logMAR intermediate (63 cm) was 0.1 to 0.2 logMAR and near (40 cm) ranged from 0.0 to 0.2 logMAR. Caparas reported similar and good visual results, with patients reporting high satisfaction with these three IOLs. He has been studying and implanting the SIFI family of IOLs for the past six years, including the Mini WELL (from 2017), the Mini WELL Toric (from mid-2018), and the Mini WELL PROXA (from late 2020).Īs a whole, Dr. Victor Caparas, an ophthalmologist in Manila, Philippines. Recognizing the capabilities of this new system is Dr. Both lenses share the same aspheric monofocal design in the periphery. Mini WELL PROXA has a number of zones higher than Mini WELL, allowing the range of vision to extend up to 3.0 D (33 cm). Mini WELL and Mini WELL PROXA IOLs share the same EDOF non-diffractive platform which creates one continuous, extended focus by inducing targeted amounts of spherical aberration in concentric optical zones in the central part of the optics without dividing the light beam. That means with WELL Fusion, patients can achieve uninterrupted vision across all distances without compromise, including excellent near vision and stable and consistent visual performance up to -3.5 D defocus. This creates one continuous focus - without dividing the light beam - resulting in a lower risk of photic phenomena compared to other multifocal IOLs. In this system, extended depth of focus is created by inducing targeted amounts of spherical aberration in the concentric optical zones in the central part of the IOLs. Using the same non-diffractive extended depth of focus (EDOF) platform and with wavefront-engineered complementary IOL design, both quantity and quality of vision are improved with WELL Fusion. This system utilizes two bilaterally implanted EDOF IOLs, the Mini WELL and Mini WELL PROXA, to provide clear, spectacle-free vision at all distances with negligible photic phenomena and minimal to no loss of contrast sensitivity. Lack of vision at all distances coupled with photic phenomena has created a clear unmet need in presbyopia correction - and one that SIFI, an Italian group of companies focusing on R&D, manufacturing, and commercialization of ophthalmic products, is addressing through its one-of-a-kind WELL Fusion optical system. 1 The Unmet Need in Presbyopia Correction But unfortunately, these IOLs still struggle to deliver spectacle-free vision at all distances they can also be plagued by photic phenomena like glare and halos. As patients demanded better outcomes - and clearer vision at all distances - premium IOLs, like trifocals and multifocals, entered the market. Now considered a basic or standard IOL, this lens gives good distance vision but lacks in intermediate and near - and as a result, leaves patients in spectacles, postoperatively. When IOLs were first introduced, the monofocal was king. However today, surgeons also have a new batch of patients looking for clear vision: those with presbyopia. After all, it’s during this procedure that the clouded lens is replaced by a new, artificial one. Most often, the topic of intraocular lenses (or IOLs) arises when discussing cataract surgery. ![]()
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