Comparison of the visual function of two enhanced monofocal intraocular lenses after cataract surgery
Cataracts remain the leading cause of preventable blindness in many developing countries. Over the past decades, cataract surgery has undergone significant advancements. With the development of refined surgical techniques, such as smaller incisions, and the introduction of advanced intraocular lens (IOL) technologies, the procedure has transformed into a refractive approach for visual rehabilitation. The primary goal is to achieve a high level of spectacle independence for patient. Monofocal lenses are designed with a single fixed focal length and refractive power. While they provide excellent distance vision, patients still need glasses for intermediate and near vision. However, modern patients have increasingly high expectations, often seeking full independence from spectacles after cataract surgery. This growing demand has fueled ongoing research and innovation in the development of advanced IOLs. In contrast, enhanced monofocal IOLs offer optical properties that deliver good intermediate vision outcomes without the negative aspects of multifocal IOLs such as photic phenomena or loss in contrast vision. The aim of the study is therefore to compare two refractive enhanced monofocal IOLs in an intra-individual approach. 60 eyes of 30 patients will be included into this study. After randomization one eye is implanted with the Art 25 IOL, whereas the other eye gets the Eyhance IOL. Follow-up visits will be 1 week and 3 months after the surgery.
Study Type
INTERVENTIONAL
Allocation
RANDOMIZED
Purpose
TREATMENT
Masking
DOUBLE
Enrollment
30
Art 25 IOL, enhanced monofocal IOL
Eyhance IOL, enhanced monofocal IOL
Vienna Institute for Research in Ocular Surgery
Vienna, Austria
Distance-corrected intermediate visual acuity
The difference in distance-corrected intermediate visual acuity before and after surgery will be measured at 66 cm and compared between the two different IOLs
Time frame: 3 months
Uncorrected intermediate visual acuity
The difference in uncorrected intermediate visual acuity before and after surgery will be measured at 66 cm and compared between the two different IOLs
Time frame: 3 months
Corrected and uncorrected distance visual acuity
The difference in corrected and uncorrected distance visual acuity before and after surgery will be measured at 4 m and compared between the two different IOLs
Time frame: 3 months
Corrected and uncorrected near visual acuity
The difference in corrected and uncorrected near visual acuity before and after surgery will be measured at 40 cm and compared between the two different IOLs
Time frame: 3 months
Defocus curve
The difference in visual acuity assessed in the defocus curve before and after surgery and compared between the two different IOLs
Time frame: 3 months
Contrast Sensitivity
The difference in contrast sensitivity between the two different IOLs
Time frame: 3 months
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