Determine a Proper Axial Length by Ultrasonic Biometry in Opaque Hydrophilic Acrylic Intraocular Lens
Journal of the Korean Ophthalmological Society
;
: 1453-1460, 2008.
Article
in Korean
| WPRIM
| ID: wpr-8757
ABSTRACT
PURPOSE:
To investigate the accuracy of measuring ultrasonic axial lengths using A-scan (Ocuscan(R), Alcon, USA) on opaque intraocular lenses after hydrophilic lens (ACRL-160(R), Ophthalmed, USA) implantation.METHODS:
We measured axial length through ultrasonic biometry prior to intraocular lens exchange. Twelve eyes of 14 patients who had intraocular lens opacity following hydrophilic acryl lens implantation were examined in a clinical study. We compared pre-cataract operative axial lengths to pre-IOL exchange axial lengths. The pre-IOL exchange axial lengths were measured in aphakic and pseudophakic modes. In the pseudophakic mode, the ultrasound velocity through an IOL was set at a rate ranging between 1,500 m/sec to 2,200 m/sec.RESULTS:
The pre-IOL exchange axial lengths in the pseudophakic mode at the rate of 1,600 m/sec in lens velocity were the closest to pre-cataract operative values (p=0.88).CONCLUSIONS:
When pre-cataract operative axial length is known with a hydrophilic acrylic intraocular lens, previous values may be used for IOL exchange of an opacity patient. If not, however, the closest values to pre-cataract operative axial lengths may be obtained by setting the velocity in the pseudophakic mode to a lens velocity rate of 1,600 m/sec.
Full text:
Available
Index:
WPRIM (Western Pacific)
Main subject:
Ultrasonics
/
Biometry
/
Eye
/
Lenses, Intraocular
Limits:
Humans
Language:
Korean
Journal:
Journal of the Korean Ophthalmological Society
Year:
2008
Type:
Article
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