TY - JOUR
T1 - Incidence of rainbow glare after laser in situ keratomileusis flap creation with a 60 kHz femtosecond laser
AU - Bamba, Sonya
AU - Rocha, Karolinne M.
AU - Ramos-Esteban, Jerome C.
AU - Krueger, Ronald R.
N1 - Funding Information:
Supported by a challenge grant to the Department of Ophthalmology, Cleveland Clinic Lerner College of Medicine, from Research to Prevent Blindness, New York, New York, USA.
PY - 2009/6
Y1 - 2009/6
N2 - Purpose: To report the incidence of and factors associated with rainbow glare after laser in situ keratomileusis (LASIK) flap creation with a 60 kHz femtosecond laser. Setting: Department of Refractive Surgery, Cleveland Clinic Cole Eye Institute, Cleveland, Ohio, USA. Methods: Consecutive patients having LASIK by the same surgeon were questioned during postoperative examinations or by telephone about postoperative rainbow glare (radiating colors around a white light at night). Femtosecond laser (IntraLase) settings included pulse frequency 60 kHz, flap thickness 90 to 110 μm, and spot/line separation 8 μm. Raster energy was 0.8 μJ (75% of eyes) and 1.0 to 1.1 μJ (25%). Excimer laser ablation was performed with the LADAR 4000 or 6000 platform using custom or conventional treatments. Results: Of 260 consecutive patients, 256 (98.5%) were successfully contacted. Fifteen patients (28 eyes) reported postoperative rainbow glare (5.8%), described as 4 to 12 bands of color around a white light, with 6 bands most common. The symptom did not correlate with refractive error, age, or sex but was more frequent at 1.0 μJ or 1.1 μJ raster energy (11.6%) than at 0.8 μJ (4.1%). The incidence followed a bimodal distribution, with the first grouping due to inadequate alignment and higher energy just after laser installation and the second just before a later maintenance service call. Conclusion: Rainbow glare is a mild optical side effect of femtosecond LASIK. In this study, higher raster energy levels and length of time between service calls were associated with the occurrence of rainbow glare.
AB - Purpose: To report the incidence of and factors associated with rainbow glare after laser in situ keratomileusis (LASIK) flap creation with a 60 kHz femtosecond laser. Setting: Department of Refractive Surgery, Cleveland Clinic Cole Eye Institute, Cleveland, Ohio, USA. Methods: Consecutive patients having LASIK by the same surgeon were questioned during postoperative examinations or by telephone about postoperative rainbow glare (radiating colors around a white light at night). Femtosecond laser (IntraLase) settings included pulse frequency 60 kHz, flap thickness 90 to 110 μm, and spot/line separation 8 μm. Raster energy was 0.8 μJ (75% of eyes) and 1.0 to 1.1 μJ (25%). Excimer laser ablation was performed with the LADAR 4000 or 6000 platform using custom or conventional treatments. Results: Of 260 consecutive patients, 256 (98.5%) were successfully contacted. Fifteen patients (28 eyes) reported postoperative rainbow glare (5.8%), described as 4 to 12 bands of color around a white light, with 6 bands most common. The symptom did not correlate with refractive error, age, or sex but was more frequent at 1.0 μJ or 1.1 μJ raster energy (11.6%) than at 0.8 μJ (4.1%). The incidence followed a bimodal distribution, with the first grouping due to inadequate alignment and higher energy just after laser installation and the second just before a later maintenance service call. Conclusion: Rainbow glare is a mild optical side effect of femtosecond LASIK. In this study, higher raster energy levels and length of time between service calls were associated with the occurrence of rainbow glare.
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U2 - 10.1016/j.jcrs.2009.01.026
DO - 10.1016/j.jcrs.2009.01.026
M3 - Article
C2 - 19465295
AN - SCOPUS:67049146822
SN - 0886-3350
VL - 35
SP - 1082
EP - 1086
JO - Journal of cataract and refractive surgery
JF - Journal of cataract and refractive surgery
IS - 6
ER -