Accuracy of GDx variable corneal compensation polarization measurements in normal human eyes: Effect of accommodation, cycloplegia, focus, pupil size, and eye selection on reproducibility

Eye

Volumn 21, Issue 3, 2007, Pages 333-340

  Levy, N S ^a   Schachar, I H ^a  

^a Florida Ophthalmic Institute   (United States)

Author keywords

[No Author keywords available]

Indexed keywords

ACCOMMODATION PARALYSIS; ADULT; ARTICLE; CONTROLLED STUDY; EYE REFRACTION; HUMAN; NORMAL HUMAN; POLARIMETER; PUPIL; PUPILLOMETER; REFRACTOMETER; REPRODUCIBILITY; STATISTICAL ANALYSIS; VARIABLE CORNEAL COMPENSATION; VISUAL SYSTEM PARAMETERS;

EID: 33847621616     PISSN: 0950222X     EISSN: 14765454     Source Type: Journal    
DOI: 10.1038/sj.eye.6702187     Document Type: Article

References (24)

1. Dreher AW, Reiter K, Weinreb RN. Spatially resolved birefringence of the retinal nerve fiber layer assessed with a retinal ellipsometer. Appl Opt 1992; 31: 3730-3749.
2. Weinreb RN, Shakiba S, Zangwill L. Scanning laser polarimetry to measure the nerve fiber layer of normal and glaucomatous eyes. Am J Ophthalmol 1995; 119: 627-636.
3. Zhou Q, Weinreb RN. Individualized compensation of anterior segment birefringence during scanning laser polarimetry. Invest Ophthalmol Vis Sci 2002; 43: 2221-2228.
4. Weinreb RN, Bowd C, Greenfield DS, Zangwill LM. Measurement of the magnitude and axis of corneal polarization with scanning laser polarimetry. Arch Ophthalmol 2002; 120: 901-906.
5. Knighton RW, Huang XR, Greenfield DS. Analytical model of scanning laser polarimetry for retinal nerve fiber layer assessment. Invest Ophthalmol Vis Sci 2002; 43: 383-392.
6. Greenfield DS, Knighton RW, Feuer WJ, Schiffman JC, Zangwill L, Weinreb RN. Correction for corneal polarization axis improves the discriminating power of scanning laser polarimetry. Am J Ophthalmol 2002; 134: 27-33.
7. Choplin NT, Zhou Q, Knighton RW. Effect of individualized compensation for anterior segment birefringence on retinal nerve fiber layer assessments as determined by scanning laser polarimetry. Ophthalmology 2003; 110: 719-725.
8. Tannenbaum DP, Hoffman D, Lemij HG, Garway-Heath DF, Greenfield DS, Caprioli J. Variable corneal compensation improves discrimination between normal and glaucomatous eyes with the scanning laser polarimeter. Ophthalmology 2004; 111: 259-264.
9. Frenkel S, Slonim E, Horani A, Molcho M, Barzel I, Blumenthal EZ. Operator learning effect and interoperator reproducibility of the scanning laser polarimeter with variable corneal compensation. Ophthalmology 2005; 112(2): 257-261.
10. Swanson WH, Lynn JR, Fellman RL, Starita RJ, Schumann SP, Nusinowitz S. Interoperator variability in images obtained by laser polarimetry of the nerve fiber layer. J Glaucoma 1995; 4: 414-418.
11. Kirkwood BR, Sterne JAC. Essential Medical Statistics. Blackwell Science Inc.: Malden, MA, 2003, pp 74-79.
12. Bland JM, Altman DG. Statistical methods for assessing agreement between two methods of clinical measurement. Lancet 1986; 1: 307-310.
13. Gilmore ED, Hudson C. Eccentricity and measurement variability and repeatability with the retinal thickness analyser. Br J Ophthalmol 2004; 88: 62-65.
14. Le Grand Y. Physiological Optics (El Hage SG, Translator). Springer-Verlag: New York, 1980, pp 85-86.
15. Enoch JM, Hope GM. An analysis of retinal orientation. IV Center of the entrance pupil and the center of convergence of orientation and directional sensitivity. Invest Ophthalmol 1972; 11: 1017-1021.
16. Yang Y, Thompson K, Burns SA. Pupil location under mesopic, photopic, and pharmacologically dilated conditions. Invest Ophthalmol Vis Sci 2002; 43: 2508-2512.
17. Hoh ST, Greenfield DS, Liebmann JM, Hillenkamp J, Ishikawa H, Mistlberger A et al. Effect of pupillary dilation on retinal nerve fiber layer thickness as measured by scanning laser polarimetry in eyes with and without cataract. J Glaucoma 1999; 8: 159-163.
18. Blumenthal EZ, Horani A, Frenkel S. The effect of pupil dilation on scanning laser polarimetry with variable cornea compensation. Invest Ophthalmol Vis Sci ARVO (E-abstract #3311; April 27, 2004).
19. Paranhos Jr A, Silvestre AM, Passerotti CC, Martins EMR, de Arruda Mello PA, Prata Jr JA et al. Influence of pupillary diameter, ciliary muscle tone, and ambient light on nerve fiber layer measurements with scanning laser polarimetry. J Glaucoma 2005; 14: 124-127.
20. Sinai M. Personal communication. Laser Diagnostic Technologies Inc.: San Diego, CA.
21. Knighton RW, Huang X. Linear birefringence of the central human cornea. Invest Ophthalmol Vis Sci 2002; 43: 82-86.
22. Shahidi M, Wang Z, Zelkha R. Quantitative thickness measurement of retinal layers imaged by optical coherence tomography. Am J Ophthalmol 2005; 139(6): 1056-1061.
23. Varma R, Skaf M, Barron E. Retinal nerve fiber layer thickness in normal human eyes. Ophthalmology 1996; 103(12): 21 (MedlineGDx Operation Manual. Version 5.3. Laser Diagnostic Technologies Inc.: San Diego, CA, pp 2-7).
24. GDx Operation Manual Version 5.3. Laser Diagnostic Technologies Inc.: San Diego, CA, pp 2-7.