1992
DOI: 10.1007/bf00176296
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Anteroposterior shift in rigid and soft implants supported by the intraocular capsular bag

Abstract: We compared the depth of the anterior chamber and the optimal distance refraction in a group of patients with soft and rigid intraocular implants under pilocarpine (maximal ciliary contraction) and cyclopentolate (maximal ciliary relaxation) in order to determine if lens movement might account for the apparent accommodation phenomenon. Lens shifts ranging from 1.5 to 0.02 mm and refractive variations up to 1 D were found. However, the discrepancies between amount of shift and refractive variations suggest that… Show more

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Cited by 21 publications
(18 citation statements)
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“…OS has been observed following in-the-bag IOL implantation with different IOL types and designs with varying results. 3,5,7,8,11,12,23,24 OS using pharmacological technique has been demonstrated to be 0.0870.26 mm for polymethyl methacryclate (PMMA), 5 0.4270.46 mm for hydrogel IOL, 5 and 0.2870.38 mm for foldable silicone IOL. 25 Moreover, Fukasaku and Marron ('Accommodation' video presented at the XVIth Congress of the European Society of Cataract & Refractive Surgeons, Nice, France, September 1998), using ultrasound biomicroscopy, showed that the IOL moves anteriorly by a mean of 0.32 mm during near vision; whereas Lesiewska-Junk H and Kahuzny J showed a mean shift of 0.42 mm without any medication.…”
Section: Discussionmentioning
confidence: 99%
See 1 more Smart Citation
“…OS has been observed following in-the-bag IOL implantation with different IOL types and designs with varying results. 3,5,7,8,11,12,23,24 OS using pharmacological technique has been demonstrated to be 0.0870.26 mm for polymethyl methacryclate (PMMA), 5 0.4270.46 mm for hydrogel IOL, 5 and 0.2870.38 mm for foldable silicone IOL. 25 Moreover, Fukasaku and Marron ('Accommodation' video presented at the XVIth Congress of the European Society of Cataract & Refractive Surgeons, Nice, France, September 1998), using ultrasound biomicroscopy, showed that the IOL moves anteriorly by a mean of 0.32 mm during near vision; whereas Lesiewska-Junk H and Kahuzny J showed a mean shift of 0.42 mm without any medication.…”
Section: Discussionmentioning
confidence: 99%
“…While analyzing this shift in the IOL, some studies have mentioned the anterior capsule cover of the IOL optic edge, 3,4 whereas others have not made any mention of it. [5][6][7][8][9] With the increasing use of multifocal IOLs, in which postoperative emmetropia is the main goal, the size of the capsulorhexis (CCC) would be of immense importance as it could influence its refractive power.…”
Section: Introductionmentioning
confidence: 99%
“…[21][22][23][24][25] There are many studies about the forward movement of various types of IOLs during accommodation effort. [6][7][8][9][10] However, the backward movement is possible with accommodative (AT-45 Crystalens) 26 or with other types of IOLs. 9 The phenomenon based on movement of an IOL is referred as pseudophakic accommodation.…”
Section: Discussionmentioning
confidence: 99%
“…[1][2][3][4][5] Forward movement of the implanted IOL induced by accommodative effort of the ciliary muscle has also been reported. [6][7][8][9][10] In the recent study, we measured and assessed the amplitude of accommodation in pseudophakic eyes implanted with one of two different types of IOLs with three different methods, one subjective and two objective methods.…”
Section: Introductionmentioning
confidence: 99%
“…In anderen Untersuchungen konnten nach Applikation von Pilokarpin mit A-Bild -Ultraschall variable Vorwärtsbe-wegungen von in den Kapselsack implantierten PMMA-HKL [14,25] und faltbaren HKL [11,14] gemessen werden. Bei der Interpretation von Ergebnissen von Ansätzen der Presbyopiebehandlung muss immer ein besonderes Augenmerk auf Details der eingesetzten Untersuchungsmethoden gerichtet werden: Die Mehrzahl der einsetzbaren Methoden ist subjektiver Natur und beruht auf Angaben der untersuchten Patienten.…”
Section: Diskussionunclassified