| |
DOG Congress Home
Invitation
Organization, Deadlines
Overview of the Congress
Scientific Programme
Opening Ceremony
Ceremony 150 Years of DOG
Thursday, 20.September
Friday, 21.September
Saturday, 22.September
Sunday, 23.September
Poster Sessions
Symposia
Courses
Satellite Programme
Information
Social Programme
Sponsors, Exhibitors
DOG Homepage
|
|
AbstractDO.03.02 Comparison of visual acuity and contrast sensitivity between aberration corrected (Acri.Smart 46LC) and aberration correcting (Acri.Smart 36A) intraocular lenses Preliminary results Meiller R., Horn F. K., Kruse F. E.
Augenklinik mit Poliklinik, Universitätsklinikum Erlangen Objective: To investigate contrast- and glare sensitivity after phacoemulsification and implantation of an IOL with aspheric (corrects spherical aberration of the IOL) and optimized aspheric design (additionally compensates positive spherical aberration of the cornea).
Methods: In this intraindividual prospective study, 11 patients (58 - 76 yrs, 8 female and 3 male) with bilateral cataract were randomly assigned to receive an aberration corrected IOL (Acri.Smart 46LC; Acri.Tec AG, Hennigsdorf, Germany) in one eye and an aberration correcting IOL in the other (Acri.Smart 36A). The refractive IOL power was between +17.5 and +25.5 D. Exclusion criteria were ocular pathologies other than cataract, previous eye surgery, topographical astigmatism >1.5 D and endothelial cell count <1200 mm2. After a mean follow-up period of 20.3±8.7 weeks the following parameters were investigated: Best corrected visual acuity (Snellen), photopic (85 cd/mm2) and mesopic (3 cd/mm2) pupil diameter (customized video analysis system with Ganzfeld illumination), contrast sensitivity (C.S.) at photopic and mesopic conditions at five different spatial frequencies (1.5, 3, 6, 12 and 18 cpd) with and without glare respectively (Optec 6500, Stereo Optical Company Inc., Chicago, USA).
Results: No intra- or postoperative complications were observed. Mean best corrected visual acuity was 0.97±0.16 (36A) and 1.01±0.14 (46LC) respectively (p=0.53). Mean pupil diameter was 2.6 mm (85 cd/mm2) and 4.2 mm (3 cd/mm2) in both eyes. The Acri.Smart 36A tended to have better photopic C.S. at 6 cpd (p=0,053). C.S. did not differ significantly between the two IOL types at all other tested spatial frequencies and illumination conditions.
Conclusions: The aberration correcting IOL Acri.Smart 36A tended to have better photopic contrast sensitivity than the aberration corrected Acri.Smart 46LC in this preliminary study.
|
|
