A comparison of Lea Symbol vs ETDRS letter distance visual acuity in a population of young children with a high prevalence of astigmatism

Journal of AAPOS

Volumn 13, Issue 3, 2009, Pages 253-257

  Dobson, Velma ^a   Clifford Donaldson, Candice E ^a   Miller, Joseph M ^a   Garvey, Katherine A ^a   Harvey, Erin M ^a  

^a UNIVERSITY OF ARIZONA COLLEGE OF MEDICINE   (United States)

Author keywords

[No Author keywords available]

Indexed keywords

AMBLYOPIA; ARTICLE; ASTIGMATISM; CHILD; EARLY TREATMENT DIABETIC RETINOPATHY STUDY; HUMAN; LEA SYMBOL; MAJOR CLINICAL STUDY; PREVALENCE; PRIORITY JOURNAL; SCORING SYSTEM; VISION TEST; VISUAL ACUITY;

ASTIGMATISM; CHILD; CHILD, PRESCHOOL; EYEGLASSES; HUMANS; INDIANS, NORTH AMERICAN; PREVALENCE; REPRODUCIBILITY OF RESULTS; VISION TESTS; VISUAL ACUITY;

EID: 67349267364     PISSN: 10918531     EISSN: None     Source Type: Journal    
DOI: 10.1016/j.jaapos.2009.01.007     Document Type: Article

References (18)

1. Ferris F.L., Kassoff A., Bresnick G.H., and Bailey I. New visual acuity charts for clinical research. Am J Ophthalmol 94 (1982) 91-96
2. Committee on Vision. Recommended standard procedures for the clinical measurement and specification of visual acuity. Adv Ophthalmol 41 (1980) 103-148
3. Hyvärinen L., Näsänen R., and Laurinen P. New visual acuity test for pre-school children. Acta Ophthalmol (Copenh) 58 (1980) 507-511
4. Gräf M.H., Becker R., and Kaufmann H. Lea Symbols: visual acuity assessment and detection of amblyopia. Graefe's Arch Clin Exp Ophthalmol 238 (2000) 53-58
5. Vision In Preschoolers (VIP) Study Group. Visual acuity results in school-aged children and adults: Lea Symbols chart versus Bailey-Lovie Chart. Optom Vis Sci 80 (2003) 650-654
6. Harvey E.M., Miller J.M., Dobson V., Lopez C.A., and Lopez F.M. A comparison of ETDRS (letter) acuity and Lea (symbol) acuity in a first grade population with a high prevalence of astigmatism. Invest Ophthalmol Vis Sci 39 (1998) S947
7. Dobson V., Miller J.M., and Harvey E.M. Corneal and refractive astigmatism in a sample of 3- to 5-year-olds with a high prevalence of astigmatism. Optom Vis Sci 76 (1999) 855-860
8. Dobson V., Miller J.M., Harvey E.M., and Sherrill D.L. Prevalence of astigmatism, astigmatic anisometropia, and glasses wearing among preschool- and school-age Native American children. In: Vision Science and Its Applications: February 19-22, 1999 (1999), Optical Society of America, Santa Fe, New Mexico. Washington OSA Technical Digest Series177-180
9. Harvey E.M., Dobson V., and Miller J.M. Prevalence of high astigmatism, eyeglass wear, and poor visual acuity among Native American grade-school children. Optom Vis Sci 83 (2006) 206-212
10. Harvey E.M., Dobson V., Miller J.M., and Clifford-Donaldson C.E. Amblyopia in astigmatic children: Patterns of deficits. Vision Res 47 (2007) 315-326
11. Guyton D.L., Miller J.M., and West C.E. Optical pearls and pitfalls: Tricks and traps in strabismus. In: Wright K.W., and Speigel P.H. (Eds). Pediatric Ophthalmology and Strabismus. 2nd ed (2003), Springer, New York p. 292-p. 296
12. Long W.F. A matrix formalism for decentration problems. Am J Optom Physiol Opt 53 (1976) 27-33
13. Harris W.F. The mean and variance of samples of dioptric powers: the basic calculations. Clin Exp Optom 73 (1990) 89-92
14. Harvey E.M., Miller J.M., Dobson V., Tyszko R., and Davis A.L. Measurement of refractive error in Native American preschoolers: Validity and reproducibility of autorefraction. Optom Vis Sci 77 (2000) 140-149
15. Cryotherapy for Retinopathy of Prematurity Cooperative Group. Multicenter trial of cryotherapy for retinopathy of prematurity: Snellen visual acuity and structural outcome at 51/2 years after randomization. Arch Ophthalmol 114 (1996) 417-424
16. Cryotherapy for Retinopathy of Prematurity Cooperative Group. Multicenter trial of cryotherapy for retinopathy of prematurity. Ophthalmological outcomes at 10 years. Arch Ophthalmol 119 (2001) 1110-1118
17. Arditi A., and Cagenello R. On the statistical reliability of letter-chart visual acuity measurements. Invest Ophthalmol Vis Sci 34 (1993) 120-129
18. Bland J.M., and Altman D.G. Measuring agreement in method comparison studies. Stat Methods Med Res 8 (1999) 135-160