cycloplegic refraction


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refraction

 [re-frak´shun]
the act or process of refracting; specifically, the determination of the refractive errors of the eye and their correction with glasses.
the deviation of light in passing obliquely from one medium to another of different density.
cycloplegic refraction a type of static refraction, measured after lens accommodation is paralyzed by administration of cycloplegic eye drops.
double refraction refraction in which incident rays are divided into two refracted rays.
dynamic refraction refraction of the eye during accommodation.
ocular refraction the refraction of light produced by the media of the normal eye and resulting in the focusing of images upon the retina.
static refraction refraction of the eye when its accommodation is paralyzed.
References in periodicals archive ?
[23] suggest, in order to minimize the effect of latent hyperopia, the planned refraction to be corrected for patients younger than 40 years was the manifest refraction plus 50% of the difference between the manifest refraction and the cycloplegic refraction. For patients older than 40 years, the manifest refraction was to be corrected.
We evaluated macular CT and retinal thickness in Turkish patients with high myopia without maculopathy and in normal subjects and examined their association with age, AL, best corrected visual acuity (BCVA), cycloplegic refraction, and SE.
At this point, there was suspicion of a visual conversion reaction (psychogenic) (32) and in view of the esophoria the plan at this stage was to call the child back for a cycloplegic refraction. However, ocular examination and OCT scans indicated a different aetiology.
Of them, 2891 children obtained parental consent for cycloplegic refraction, and 2851 children aged 3-6 years who completed the cycloplegic refraction were analyzed in this study.
Preoperative evaluation consisted of uncorrected visual acuity for both - distance and near; best spectacle corrected visual acuity, manifest and cycloplegic refraction, ocular dominance, keratometry, applanation tonometry, scotopic pupillary size, tear film break up time, blinking rate, Schirmer test when necessary, pachymetry, slitlamp examination and computerized videokeratography.
During subjective refraction there were also signs of latent hyperopia, and a cycloplegic refraction revealed a marked degree of hyperopia.
Cycloplegic refraction was +1.00+ 1.00 x 90 in the right eye and + 1.00+1.00 x 80 in the left eye.
All the patients were subjected to routine clinical examination, cycloplegic refraction; fundoscopy.100 patients with normal vision were taken up for this study.
Follow-up appointments It is not unusual for a patient to request to return for a dilated funduscopy or cycloplegic refraction on a different day.
All participants underwent a complete ophthalmic examination, including visual acuity, evaluation of anterior segment with slit lamp biomicroscopy, fundus examination with direct ophthalmoscopy, assessment of ocular motility and alignment, objective cycloplegic refraction, IOP, and axial length (AL) measurements.
Cycloplegic refraction revealed -10 DS -1.5 x 170[degrees] RE and -0.50 x 180[degrees] in LE.