Straylight values 1 month after laser in situ keratomileusis and photorefractive keratectomy
Accepted 17 January 2007.
Purpose
To compare straylight values before and 1 month after laser in situ keratomileusis (LASIK) and photorefractive keratectomy (PRK).
Setting
Private practice refractive surgery center, Delft, The Netherlands.
Methods
In a prospective nonrandomized study, straylight values of 21 patients (42 eyes) were measured using the van den Berg straylight meter (third generation) during intake sessions at a refractive surgery clinic. Of the 21 patients, 12 were scheduled for LASIK (6 patients, 12 eyes) or PRK (6 patients, 12 eyes). At the 1-month follow-up visit, straylight values were measured again in the same manner and compared with the preoperative straylight values.
Results
Overall, there was no statistically significant increase in straylight values compared with the preoperative values 1 month after LASIK or PRK (P>.05). Individual straylight values increased in some cases, however, and the values correlated well with decreased quality of vision and changes in the eye examination.
Conclusion
Straylight values 1 month after LASIK or PRK did not increase on average, although individual straylight values increased in some cases.
From the Department of Ophthalmology, VU University Medical Center (Beerthuizen), and the Netherlands Ophthalmic Research Institute (Franssen, van den Berg), Amsterdam, and Visionclinics (Landesz), Delft, The Netherlands
Corresponding author: Jeroen J.G. Beerthuizen, MD, FEBOphth, Department of Ophthalmology, VU University Medical Center, De Boelelaan 1117, 1081 HV, Amsterdam, The Netherlands.
Dr. van den Berg is an employee of the Royal Netherlands Academy of Arts and Sciences, which has a financial interest in the C-Quant straylight meter. None of the other authors have a financial or proprietary interest in any material or method mentioned.
ABSTRACT