Removal from the center.

decentration (dec)

A displacement, horizontal and/or vertical, of the centration point of a spectacle lens from the standard optical centre position (British Standard). See standard optical position centre; centration point.
References in periodicals archive ?
It is essential to carefully review the position of bearing surfaces and any resultant displacement or decentration of the corneal RGP lens.
Pathologic production and deposition of PEX material has been associated with development of intraocular complications (corneal endotheliopathy, iridopathy with reduced pupillary opening, ciliary body alterations, instability and degenerative changes of zonular apparatus, increased lens mobility, lens or intraocular graft decentration and dislocation, pigment dispersion, secondary open-angle and angle-closure glaucoma, pseudouveitis, anterior synechiae, and anterior chamber hypoxia).
IOL-related factors, which can often cause corneal decompensation in the postoperative period, include IOL decentration and instability with endothelial touch, dislocated or retained IOL fragments, posterior chamber intraocular lens in AC and unstable anterior chamber intraocular lens.
There were no corneal endothelial decompensation, IOL decentration or dislocation, secondary glaucoma, endophthalmitis, cystoid macular edema, choroid and retinal detachment, and other ocular complications.
On the other hand, the decentration implied by the comparison makes more demanding the construction of the theoretical-methodological approach and the definition of the object of study.
Two eyes in group C developed IOL decentration. One eye in group A, one eye in group B, and two eyes in group C developed secondary glaucoma during follow-up period (Table 3).
The aim of this study was to compare the rates of visual axis opacification (VAO) and postoperative complications (uveitic reaction, posterior synechiae, glaucoma, and IOL decentration) in pediatric cataract patients who have undergone IOL implantation in the capsular bag after posterior capsulorhexis and anterior vitrectomy with those of patients who have undergone posterior capsulorhexis and IOL implantation with the haptic in the bag and the optic positioned behind the posterior capsulorhexis (optic capture).
The technique of multiply scattered light through decentration of the pinhole aperture, a recently introduced AOSLO imaging method, further enhances image quality of vessel walls and erythrocytes [36, 37].
(d) Thinnest-point displacement at x- and y-axes (thinnest dX and thinnest dY, resp.) and diagonal decentration index
Too small or too large capsulorrhexis can cause various problems, including intraocular lens (IOL) decentration, hyperopic shift, posterior capsule opacification, etc.
Heimberg (2003) ajoute que les modes de pensee historique, en particulier celui de distinguer memoire et histoire, permettent de realiser que notre construction identitaire depend autant de la memoire collective que de l'histoire et que c'est bien une distanciation critique et une decentration qui nous permettent d'elargir notre conscience historique.
The main goal of this study was to examine whether people with substance abuse disorders (SUDs), and treated in therapeutic community regime, displayed specific patterns of metacognitive deficits on Self-reflectivity, Understanding others' mind, Decentration, and Mastery, comparing their scores with two clinical groups of patients with schizophrenia spectrum disorders (SSDs) and anxiety disorders.