[Strategies of visual acuity assessment].

Abstract:

:Visual acuity can be assessed by different strategies. The constant-stimulus-, the stair-case-, the Best-PEST-strategies, and the EN ISO 8596 are discussed. In cases of presumed psychogenic visual impairment and malingering it can be useful to modify these strategies striving for a determination of the (minimum) visual acuity based on statistical analysis rather than "clinical experience". The EN ISO 8596 defines visual acuity by a 60 % criterion, thus implying guesswork, if recognition of the optotypes is uncertain. Therefore, the forced-choice-procedure is mandatory. Objective psychophysical (preferential looking, induction or suppression of rhythmic eye movements) and electrophysiological methods (VEP) of visual acuity assessment can be useful in infants, in the mentally handicapped, and in patients with presumed psychogenical influence or malingering.

journal_name

Klin Monbl Augenheilkd

authors

Gräf M

doi

10.1055/s-2004-812893

subject

Has Abstract

pub_date

2004-07-01 00:00:00

pages

557-65

issue

7

eissn

0023-2165

issn

1439-3999

journal_volume

221

pub_type

杂志文章
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    doi:

    authors: Till P

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    更新日期:1998-04-01 00:00:00

  • [Apropos of a case of bilateral perforating corneal ulcer in a patient with Portugese amyloidosis].

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    更新日期:1996-05-01 00:00:00

  • [Better prognosis for amblyopics by means of full prismatic correction after monocular treatment (author's transl)].

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    doi:

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  • [Histopathological aspects of the surgical treatment of congenital glaucoma].

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    更新日期:1980-04-01 00:00:00

  • [Trabeculectomy or Goniotrepanation -- a comparison of the postoperative course (author's transl)].

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    authors: Leuenberger AE,Tilen A

    更新日期:1980-12-01 00:00:00

  • [Combined phacoemulsification with trabecular aspiration with differing outcomes in pseudoexfoliative glaucoma - a retrospective study].

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    doi:

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  • [Cost Comparison of Licensed Intravitreal Therapies for Insufficiently Anti-VEGF Responding Fovea Involving Diabetic Macular Edema in Germany].

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  • [Modification of the course of chronic intraocular inflammations by sunlight (Israel study)].

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  • [Choroidal Neovascularisation Other than Typical Neovascular Age-Related Macular Degeneration].

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  • [No disorder of arachidonic acid-induced thrombocyte aggregation in familial exudative vitreoretinopathy].

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    更新日期:1989-01-01 00:00:00

  • [The corneoscleral suture with resorbent suture material].

    abstract::Modern resorbent materials are perhaps still not ideal in every respect. Resorbent fibers are an alternative to the non-resorbent synthetic materials and to Barraquer silk, as the author points out with reference to results of operations carried out during the last three years at the ophthalmological clinic in Aarau. ...

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    doi:10.1055/s-2008-1054756

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    更新日期:1983-03-01 00:00:00

  • [Lacrimal Duct Obstruction in Adults].

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  • Cilioretinal artery occlusion combined with central retinal vein occlusion - a report of two cases and review of the literature.

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    doi:

    authors: Pham Duy T,Miszalok V

    更新日期:1984-10-01 00:00:00

  • [II: Difference plots or scattergram--when to use which?].

    abstract::Sometimes the statistical comparison of diagnostic measurement methods or subsequent measurement series in the same individuals is based on bivariate scattergrams; correlation coefficients and linear regression lines are provided in addition. However, this strategy for data representation must be considered inappropri...

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  • [Tear film diagnosis in contact lens wearers].

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  • [Greek anatomy of the eye in Pakistan today].

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