Measurement of astigmatism arising from the internal ocular surfaces

Acta Ophthalmologica Scandinavica

Volumn 74, Issue 1, 1996, Pages 14-20

  Dunne, Mark C M ^a   Elawad, Mohamed E A ^a   Barnes, Derek A ^a  

^a ASTON UNIVERSITY   (United Kingdom)

Author keywords

Astigmatism; Meridional analysis; Ocular components; Phakometry; Residual astigmatism

Indexed keywords

A SCAN; ADULT; ARTICLE; ASTIGMATISM; CLINICAL TRIAL; CORNEA; FEMALE; HUMAN; HUMAN EXPERIMENT; LENS; MALE; MEASUREMENT; NORMAL HUMAN; PRIORITY JOURNAL; REFRACTION INDEX; VIDEOKERATOGRAPHY;

EID: 0029911686     PISSN: 13953907     EISSN: None     Source Type: Journal    
DOI: 10.1111/j.1600-0420.1996.tb00674.x     Document Type: Article

References (21)

1. Bennett A G & Rabbetts R B (1978): Refraction in the oblique meridians of the astigmatic eye. Br J Physiol Opt 32: 5977.
2. Bennett A G & Rabbetts R B (1984): Clinical Visual Optics, pp 215-238, 423-424. Butterworths, London.
3. Brubaker R F, Reinecke R D & Copeland J C (1969): Meridional refractometry 1. derivation of equations. Arch Ophthalmol 81: 849-852.
4. Dunne MCM (1992): Scheme for calculation of ocular components in a four surfaced eye without need for measurement of the anterior crystalline lens surface Purkinje images. Ophthalmic Physiol Opt 12: 370-375.
5. Dunne M C M & Barnes D A (1993): A comparison of the errors arising from three methods of phakometric computation. In: Ophthalmic & Visual Optics/ Noninvasive assessment of the Visual System Technical Digest, p 62-65. Optical Society of America, Washington D. C.
6. Dunne M C M, Elawad M E A & Barnes D A (1994): A study of the axis of orientation of residual astigmatism. Acta Ophthalmol (Copenh) 72: 483-489.
7. Dunne M C M, Royston J M & Barnes D A (1991): Posterior corneal surface toricity and total corneal astigmatism. Optom Vis Sci 68: 708-710.
8. Dunne M C M, Royston J M & Barnes D A (1992): Normal variations of the posterior corneal surface. Acta Ophthalmol (Copenh) 70: 255-261.
9. Erikson P (1991): Optical components contributing to refractive error. In: Grosvenor G & Flom M C (eds). Refractive Anomalies. Research and Clinical Applications, p 199-218. Butterworth-Heinemann, London.
10. Kooijman A C (1983): Light distribution on the retina of a wide-angle theoretical eye. J Opt Soc Am 73: 1544-1550.
11. Le Grand Y & El Hage S G (1980): Physiologic Optics, p 81-91. Springer Verlag, New York.
12. Long WFA (1974): Mathematical analysis of multimeridional refractometry. Am J Optom Physiol Opt 51: 263-269.
13. Ludlam W M & Wittenberg S (1966): Measurements of the ocular dioptric elements utilizing photographic methods. Part II. Cornea - theoretical considerations. Am J Optom Arch Am Acad Optom 43: 249-2.
14. Ludlam W M. Wittenberg S & Rosenthal J (1965): Measurement of the ocular dioptric elements utilizing photographic methods. Part 1. Errors analysis of Sorsby's photographic ophthalmophakometry. Am J Optom Arch Am Acad Optom 42: 394-416.
15. Lyle M W (1971): Changes in corneal astigmatism with age. Am J Optom Arch Am Acad Optom 48: 467-478.
16. McBrien N A & Millodot M (1985): Clinical evaluation of the Canon Autoref R-1. Am J Optom Physiol Opt 62: 786-792.
17. Olsen T & Ehlers N (1984): The thickness of the human cornea as measured by the specular method, Acta Ophthalmol (Copenh) 62: 859-871.
18. Royston J M, Dunne M C M & Barnes D A (1990): Measurement of posterior corneal surface toricity. Optom Vis Sci 67: 757-763.
19. Smith G, Pierscionek B K & Atchison D (1991): The optical modelling of the human lens. Ophthalmic Physiol Opt 11: 359-396.
20. Steele C F, Crabb D P & Edgar D F (1992): Effects of different ocular fixation conditions on A-scan biometry measurements. Ophthalmic Physiol Opt 12: 491-495.
21. Tscherning M (1924): Physiologic Optics, 4th ed. pp 27-72, 115-136. Trans. Weiland C. Keyston, Philadelphia.