Measurement of stray light and glare: comparison of Nyktotest, Mesotest, stray light meter, and computer implemented stray light meter.
OBJECTIVE
To evaluate the properties of devices for measuring stray light and glare: the Nyktotest, Mesotest, "conventional" stray light meter and a new, computer implemented version of the stray light meter.


METHODS
112 subjects, divided in three groups: (1) young subjects without any eye disease; (2) elderly subjects without any eye disease, and (3) subjects with (early) cataract in at least one eye. All subjects underwent a battery of glare and stray light tests, measurement of visual acuity, contrast sensitivity, refraction, and LOCS III cataract classification. Subjects answered a questionnaire on perceived disability during driving.


RESULTS
Repeatability values were similar for all glare/stray light tests. Validity (correlation with LOCS III and questionnaire scores), discriminative ability (ability to discriminate between the three groups), and added value (to measurement of visual acuity and contrast sensitivity) were all superior for both stray light meters. Results of successive measurements are interrelated for the conventional but not the new stray light meter. This indicates a better resistance to fraud for the latter device.


CONCLUSIONS
The new computer implemented stray light meter is the most promising device for future stray light measurements.
van Rijn
L J
LJ
Ophthalmology, Vrije Universiteit Medical Centre, PO Box 7057, NL-1007 MB Amsterdam, Netherlands. vanrijn@vumc.nl
Nischler
C
C
Gamer
D
D
Franssen
L
L
de Wit
G
G
Kaper
R
R
Vonhoff
D
D
Grabner
G
G
Wilhelm
H
H
Völker-Dieben
H J
HJ
van den Berg
T J T P
TJ
D000221:Adaptation, Ocular; D000328:Adult; D000704:Analysis of Variance; D001334:Automobile Driving; D016022:Case-Control Studies; D002386:Cataract / Q000503:physiopathology*; D015350:Contrast Sensitivity; D003936:Diagnosis, Computer-Assisted; D004192:Discrimination, Psychological; D019466:Glare; D006801:Humans; D008875:Middle Aged; D009887:Ophthalmoscopy; D014792:Visual Acuity
Ophthalmologe. 1998 Jan;95(1):44-50
9531801
Doc Ophthalmol. 1995;90(1):35-42
8549241
Klin Monbl Augenheilkd. 1980 May;176(5):859-63
6969330
Am J Ophthalmol. 1992 Oct 15;114(4):424-8
1415452
Ophthalmologe. 1998 Jun;95(6):432-7
9703724
Ophthalmic Physiol Opt. 1988;8(4):397-401
3253632
Ophthalmology. 1990 Sep;97(9):1233-7
2234858
Br J Ophthalmol. 2003 Jan;87(1):113-7
12488274
Lancet. 1986 Feb 8;1(8476):307-10
2868172
Invest Ophthalmol Vis Sci. 1991 Feb;32(2):422-32
1993595
Invest Ophthalmol Vis Sci. 1993 Jan;34(1):120-9
8425819
Appl Opt. 1992 Jul 1;31(19):3694-6
20725342
Klin Monbl Augenheilkd. 1996 Feb;208(2):87-92
8648992
Invest Ophthalmol Vis Sci. 1993 Jan;34(1):108-19
8425818
Doc Ophthalmol. 1991;78(3-4):177-81
1790738
J Refract Corneal Surg. 1994 Nov-Dec;10(6):625-30
7719532
Accid Anal Prev. 1989 Jun;21(3):273-82
2736024
Br J Ophthalmol. 2002 Nov;86(11):1262-4
12386085
Br J Ophthalmol. 1997 Feb;81(2):136-40
9059248
J Refract Surg. 2002 May-Jun;18(3):249-52
12051380
Arch Ophthalmol. 2001 Jun;119(6):881-7
11405840
Klin Monbl Augenheilkd. 1970 Dec;157(6):843-73
5312718
Arch Ophthalmol. 1998 Jan;116(1):12-8
9445203
Klin Monbl Augenheilkd. 1984 Aug;185(2):86-90
6482301
Accid Anal Prev. 1997 Sep;29(5):675-85
9316715
Ophthalmol Clin North Am. 2003 Jun;16(2):269-87
12809163
Surv Ophthalmol. 2002 Nov-Dec;47(6):533-46
12504738
Am J Ophthalmol. 1982 Jul;94(1):91-6
7091289
Fortschr Ophthalmol. 1987;84(2):173-9
3596417
Ophthalmologe. 1998 Jun;95(6):420-6
9703722
J Cataract Refract Surg. 1993 May;19(3):399-404
8501637
Graefes Arch Clin Exp Ophthalmol. 1999 Apr;237(4):278-82
10208259
Ophthalmologe. 1998 Aug;95(8):555-8
9782732
Ophthalmic Physiol Opt. 1990 Jan;10(1):21-4
2330208
Control Clin Trials. 1999 Dec;20(6):573-600
10588299
Eye (Lond). 1990;4 ( Pt 5):712-7
2282946
Klin Monbl Augenheilkd. 1999 Jun;214(6):401-6
10427544
Klin Monbl Augenheilkd. 1998 Feb;212(2):106-10
9577810
Arch Ophthalmol. 1992 Aug;110(8):1081-6
1497520