Meridional profiles of variance-covariance of symmetric dioptric power: Classes of variation that are uniform across the meridians of the eye

Optometry and Vision Science

Volumn 74, Issue 6, 1997, Pages 397-413

  Harris, W F ^a  

^a UNIVERSITY OF JOHANNESBURG   (South Africa)

Author keywords

Curvital power; Keratometric variation; Profiles of variation; Refractive variation; Torsional power; Uniform variation; Variation of dioptric power

Indexed keywords

LIGHT REFRACTION; REFRACTIVE INDEX; VISION;

CURVITAL POWER; DIOPTRIC POWER VARIATION; KERATOMETRY; REFRACTIVE VARIATION; TORSIONAL POWER;

STATISTICAL OPTICS;

ADULT; ARTICLE; CASE REPORT; COVARIANCE; EYE REFRACTION; FEMALE; HUMAN; KERATOMETRY; LENS POWER; PRIORITY JOURNAL; TORSION; VARIANCE;

ANALYSIS OF VARIANCE; CORNEA; EYE; HUMANS; MATHEMATICS; OCULAR PHYSIOLOGY; OPTICS; OPTOMETRY; REFRACTION, OCULAR;

EID: 0031171029     PISSN: 10405488     EISSN: None     Source Type: Journal    
DOI: 10.1097/00006324-199706000-00024     Document Type: Article

References (6)

1. Harris WF. Meridional profiles of variance-covariance of dioptric power. Part 1: The basic theory. Ophthal Physiol Opt 1992;12: 467-70.
2. Harris WF, Malan DJ. Meridional profiles of variance-covariance of dioptric power. Part 2: Profiles representing variation in one or more of sphere, cylinder and axis. Ophthal Physiol Opt 1992;12:471-7.
3. Harris WF, Malan DJ. Change in refraction following radial keratotomy: outline of techniques for data analysis. South Afr Arch Ophthalmol 1992;17:16-23.
4. Saunders H. The algebra of sphero-cylinders. Ophthal Physiol Opt 1985;5:157-63.
5. Deal FC Jr, Toop J. Recommended coordinate systems for thin spherocylindrical lenses. Optom Vis Sci 1993;70:409-13.
6. Thibos LN, Wheeler W, Horner D. Power vectors: an application of Fourier analysis to the description and statistical analysis of refractive error. Optom Vis Sci 1997;74:367-75.