Wavefront analysis of eye with monocular diplopia and cortical cataract.
OBJECTIVE
To determine whether higher-order aberrations can explain the monocular diplopia reported by a patient.


METHODS
Observational case report.


METHODS
A patient complaining of monocular diplopia was examined with the Hartmann-Shack aberrometer to determine if the higher-order wavefront aberrations could account for the diplopia. The patient had a mild cortical cataract, and measurements were made before and after lensectomy. In addition, the retinal image was simulated using Zernike polynomials.


RESULTS
Spherical aberration (0.20 microm for 4-mm pupil) and secondary astigmatism (-0.12 microm) were increased in the eye. The simulated retinal image had a double configuration that was approximately the same as the subjective image reported by the patient. After cataract surgery, the diplopia disappeared, and the spherical aberrations and secondary astigmatism were considerably decreased.


CONCLUSIONS
The monocular diplopia probably stemmed from the combined effects of spherical aberration and secondary astigmatism caused by the cortical cataract.
Fujikado
Takashi
T
Department of Applied Visual Science, Osaka University Graduate School of Medicine, Technical Research Institute, Tokyo, Japan. fujikado@ophtal.med.osaka-u.ac.jp
Shimojyo
Hiroshi
H
Hosohata
Jun
J
Hirohara
Yoko
Y
Mihashi
Toshifumi
T
Maeda
Naoyuki
N
Tano
Yasuo
Y
D000328:Adult; D001251:Astigmatism / Q000175:diagnosis / Q000209:etiology; D002386:Cataract / Q000150:complications / Q000175:diagnosis*; D002387:Cataract Extraction; D003315:Cornea / Q000473:pathology*; D019781:Corneal Topography; D004172:Diplopia / Q000175:diagnosis* / Q000209:etiology; D006801:Humans; D019654:Lens Implantation, Intraocular; D008297:Male; D012030:Refractive Errors / Q000175:diagnosis / Q000209:etiology