当前位置： SCI文献检索 > OPHTHALMOLOGY期刊下所有文献 > The axial length/disc area ratio in anisometropic hyperopic amblyopia: a hypothesis for decreased unilateral vision associated with hyperopic anisometropia.

The axial length/disc area ratio in anisometropic hyperopic amblyopia: a hypothesis for decreased unilateral vision associated with hyperopic anisometropia.

Abstract：

OBJECTIVE:Hyperopic anisometropia is a risk factor for amblyopia. Disc areas and axial lengths are reduced in amblyopic eyes. This study's aim was to investigate the differences in the relative size of the optic disc in 5 groups of eyes: (1) normal right eyes; (2) smaller eyes of nonamblyopic, anisometropic, bilateral hyperopes; (3) larger eyes of nonamblyopic, anisometropic, bilateral hyperopes; (4) fellow (nonamblyopic) eyes of eyes of amblyopic, anisometropic, bilateral hyperopes; and (5) amblyopic eyes of bilateral hyperopic anisometropes. To determine the relative size of the discs, the relationships of axial length to disc area in the above groups were evaluated. DESIGN:Case-control study. PARTICIPANTS:Nine hundred twenty-seven records from the author's private practice, which included axial length measurements and optic disc photographs or digital images, were analyzed to form the 5 groups above. METHODS:Disc areas were measured using objective techniques developed by Bengtsson and Krakau. Axial lengths were determined by ultrasound biometry or with a Zeiss IOL Master. MAIN OUTCOME MEASURES:Optic disc areas, corrected for magnification, axial lengths, and a derived ratio, axial length/disc area (AXL/DA). RESULTS:The AXL/DA for the amblyopic eyes (group 5) was significantly greater than that of all of the other groups, indicating that amblyopic eyes have discs that are both absolutely smaller and, when adjusted for eyes' size, relatively smaller than those of nonamblyopic eyes. CONCLUSION:The relatively small size of the discs of amblyopic eyes points to an organic as opposed to a functional amblyopia in these patients.

journal_name

Ophthalmology

journal_title

Ophthalmology

authors

Lempert P

doi

10.1016/j.ophtha.2003.05.020

subject

Has Abstract

pub_date

2004-02-01 00:00:00

pages

304-8

issue

2

eissn

0161-6420

issn

1549-4713

pii

S0161-6420(03)01163-1

journal_volume

111

pub_type

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