Abstract
Accurate methods for the analysis of corneal topography are essential for the evaluation and management of corneal refractive errors. Photokeratoscopy is the most common clinical qualitative method to estimate corneal shape. The two-dimensional information on the keratoscope image is insufficient for reconstructing a three-dimensional corneal surface uniquely. The assumptions necessary for calculation lead to errors. The algorithm used in current practice was investigated for these errors. An improved one is proposed that avoids some invalid assumptions. Tested on nonspherical models of known shape, the new algorithm shows four times better accuracy.
| Original language | English |
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| Pages | 1476 |
| Number of pages | 1 |
| State | Published - 1988 |
| Externally published | Yes |
| Event | Proceedings of the Annual International Conference of the IEEE Engineering in Medicine and Biology Society - New Orleans, LA, USA Duration: 4 Nov 1988 → 7 Nov 1988 |
Conference
| Conference | Proceedings of the Annual International Conference of the IEEE Engineering in Medicine and Biology Society |
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| City | New Orleans, LA, USA |
| Period | 4/11/88 → 7/11/88 |