On the day of surgery, the the eye with astigmatism of at least 0.75dpt receives a Vivinex XY1A , HOYA Surgical Optics GmbH and the second eye to be operated receives an XY1, HOYA Surgical Optics GmbH. A complete biomicroscopic examination and visual acuity testing using autorefractometer, will be performed 1 week (7-14days), 6 weeks (30-60days) and 5 month (4-6months) postoperatively.
Study Type
INTERVENTIONAL
Allocation
NON_RANDOMIZED
Purpose
DIAGNOSTIC
Masking
DOUBLE
Enrollment
50
Implantation of an intraocular lens Hoya Vivinex XY1
Implantation of an intraocular lens Hoya Vivinex XY1A
Number of FBGC (foreign body giant cells) (slitlamp examination)
The number of foreign body giant cells on the IOLs will be assessed.
Time frame: 5 months
Incidence of Monocytes (slitlamp examination)
The number of monocytes on the IOLs will be assessed. The following classification will be used: + = fewer than 10 cells/mm2; ++ = 10 to 25 cells/mm2; +++ = more than 25 cells/mm2
Time frame: 5 months
PCO Score (slitlamp examination)
Incidence and development of posterior capsular opacification will be subjectively graded: 0-10 (0= no PCO, 10= maximum PCO)
Time frame: 5 months
Grade of Anterior Fibrosis (slitlamp examination)
Grade of anterior fibrosis assessed subjectively at the slitlamp (grade 0=no fibrosis, grade 3=maximum fibrosis)
Time frame: 5 months
Anterior chamber reaction (slitlamp examination)
Incidence of cells and tyndall in the anterior chamber (ratet as - to +++ respectively)
Time frame: 5 months
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