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Original scientific paper

How to Convert the Obliquely Crossed to Non-Crossed Astigmatism? A Simple Method Using Vector Analysis

Božo Vojniković ; »Svjetlost« University Eye Clinic, Zagreb, Croatia
Nikica Gabrić ; »Svjetlost« University Eye Clinic, Zagreb, Croatia
Iva Dekaris ; »Svjetlost« University Eye Clinic, Zagreb, Croatia

Fulltext: english, pdf (190 KB) pages 103-106 downloads: 307* cite
APA 6th Edition
Vojniković, B., Gabrić, N. & Dekaris, I. (2013). How to Convert the Obliquely Crossed to Non-Crossed Astigmatism? A Simple Method Using Vector Analysis. Collegium antropologicum, 37 Supplement 1 (1), 103-106. Retrieved from https://hrcak.srce.hr/102846
MLA 8th Edition
Vojniković, Božo, et al. "How to Convert the Obliquely Crossed to Non-Crossed Astigmatism? A Simple Method Using Vector Analysis." Collegium antropologicum, vol. 37 Supplement 1, no. 1, 2013, pp. 103-106. https://hrcak.srce.hr/102846. Accessed 5 Apr. 2020.
Chicago 17th Edition
Vojniković, Božo, Nikica Gabrić and Iva Dekaris. "How to Convert the Obliquely Crossed to Non-Crossed Astigmatism? A Simple Method Using Vector Analysis." Collegium antropologicum 37 Supplement 1, no. 1 (2013): 103-106. https://hrcak.srce.hr/102846
Harvard
Vojniković, B., Gabrić, N., and Dekaris, I. (2013). 'How to Convert the Obliquely Crossed to Non-Crossed Astigmatism? A Simple Method Using Vector Analysis', Collegium antropologicum, 37 Supplement 1(1), pp. 103-106. Available at: https://hrcak.srce.hr/102846 (Accessed 05 April 2020)
Vancouver
Vojniković B, Gabrić N, Dekaris I. How to Convert the Obliquely Crossed to Non-Crossed Astigmatism? A Simple Method Using Vector Analysis. Collegium antropologicum [Internet]. 2013 [cited 2020 April 05];37 Supplement 1(1):103-106. Available from: https://hrcak.srce.hr/102846
IEEE
B. Vojniković, N. Gabrić and I. Dekaris, "How to Convert the Obliquely Crossed to Non-Crossed Astigmatism? A Simple Method Using Vector Analysis", Collegium antropologicum, vol.37 Supplement 1, no. 1, pp. 103-106, 2013. [Online]. Available: https://hrcak.srce.hr/102846. [Accessed: 05 April 2020]

Abstracts
The authors discussed about the problem of special form in astigmatism classification. This special type of astigmatism is the form of obliquely crossed astigmatism. In which the meridians, major and minor, are not right angles. In this astigmatism is not possible to prescribing for cylindrical (toric) spectacle lens. Authors describe the Thompson formula for oblique crossed cylinder and observe that this formula is to complicate for calculation new cylinder power. In this reason, the authors create the new formula and simple procedure for this calculation. This simple formula based on vector analysis and read: DM3 = DM2 ´ cos2 b.

Keywords
obliquely crossed astigmatism; principal meridians; vector analysis

Hrčak ID: 102846

URI
https://hrcak.srce.hr/102846

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