TY - JOUR
T1 - Straylight Effects with Aging and Lens Extraction
AU - Van Den Berg, Thomas J.T.P.
AU - Van Rijn, L. J.(René)
AU - Michael, Ralph
AU - Heine, Christian
AU - Coeckelbergh, Tanja
AU - Nischler, Christian
AU - Wilhelm, Helmuth
AU - Grabner, Günther
AU - Emesz, Martin
AU - Barraquer, Rafael I.
AU - Coppens, Joris E.
AU - Franssen, Luuk
N1 - Funding Information:
This study was supported by grant SUB-B27020B-E3-GLARE-2002-S07.18091 from the European Commission, Brussels, Germany, Pearle BV, Antwerp, Belgium, Vistech GmbH, Tübingen, Germany, and the RACC Automóvil Club, Barcelona, Spain. The Netherlands Academy of Arts and Sciences has a proprietary interest in the C-Quant straylight meter. The authors indicate no financial conflict of interest. Involved in design and conduct and collection, management, and interpretation of data (T.J.T.P.v.d.B., L.J.v.R., R.M., C.H., T.C., C.N., H.W., G.G., M.E., R.I.B., J.E.C., L.F.); analysis of data and preparation of manuscript (T.B., L.R.); and review and approval (T.J.T.P.v.d.B., L.J.v.R., R.M., C.H., T.C., C.N., H.W., G.G., M.E., R.I.B., J.E.C., L.F.). The study was approved by an ethics committee and conforms to the provisions of the Declaration of Helsinki.
PY - 2007/9
Y1 - 2007/9
N2 - Purpose: To assess possible gains and losses in straylight values among the population to consider straylight as added benefit of lens extraction. Design: In this cross-sectional design, data from a multicenter study on visual function in automobile drivers were analyzed. Methods: On both eyes of 2,422 subjects, visual acuity (logarithm of the minimum angle of resolution [logMAR] in steps of 0.02 log units), straylight on the retina (psychophysical compensation comparison method), and lens opacity (slit-lamp scoring using the Lens Opacities Classification System III [LOCS III] system) were determined. Three groups were defined: 220 pseudophakic eyes, 3,182 noncataractous eyes (average LOCS III score, <1.5), and 134 cataractous eyes (average LOCS III score, >3.0). Results: Noncataractous straylight values increases strongly with age as: log(s) = constant + log(1 + (age / 65)4), doubling by the age of 65 years, and tripling by the age of 77 years. Population standard deviation around this age norm was approximately 0.10 log units. The cataract eyes (in this active driver group) had relatively mild straylight increase. In pseudophakia, straylight values may be very good, better even than in the noncataract group. Visual acuity and straylight were found to vary quite independently. Conclusions: Lens extraction holds promise not only to improve on the condition of the cataract eye, but also to improve on the age-normal eye. Lens extraction potentially reverses the strong age increase in straylight value, quite independently from visual acuity.
AB - Purpose: To assess possible gains and losses in straylight values among the population to consider straylight as added benefit of lens extraction. Design: In this cross-sectional design, data from a multicenter study on visual function in automobile drivers were analyzed. Methods: On both eyes of 2,422 subjects, visual acuity (logarithm of the minimum angle of resolution [logMAR] in steps of 0.02 log units), straylight on the retina (psychophysical compensation comparison method), and lens opacity (slit-lamp scoring using the Lens Opacities Classification System III [LOCS III] system) were determined. Three groups were defined: 220 pseudophakic eyes, 3,182 noncataractous eyes (average LOCS III score, <1.5), and 134 cataractous eyes (average LOCS III score, >3.0). Results: Noncataractous straylight values increases strongly with age as: log(s) = constant + log(1 + (age / 65)4), doubling by the age of 65 years, and tripling by the age of 77 years. Population standard deviation around this age norm was approximately 0.10 log units. The cataract eyes (in this active driver group) had relatively mild straylight increase. In pseudophakia, straylight values may be very good, better even than in the noncataract group. Visual acuity and straylight were found to vary quite independently. Conclusions: Lens extraction holds promise not only to improve on the condition of the cataract eye, but also to improve on the age-normal eye. Lens extraction potentially reverses the strong age increase in straylight value, quite independently from visual acuity.
UR - http://www.scopus.com/inward/record.url?scp=34548209830&partnerID=8YFLogxK
U2 - 10.1016/j.ajo.2007.05.037
DO - 10.1016/j.ajo.2007.05.037
M3 - Article
C2 - 17651678
AN - SCOPUS:34548209830
SN - 0002-9394
VL - 144
SP - 358-363.e1
JO - American Journal of Ophthalmology
JF - American Journal of Ophthalmology
IS - 3
ER -