dorsal/arxiv
View SchemaCorneal thickness and elevation maps computed from optical rotary scans
| Authors | S. Franco, J. B. Almeida, M. Parafita |
|---|---|
| Categories | |
| ArXiv ID | physics/0405020 |
| URL | https://arxiv.org/abs/physics/0405020 |
| Journal | J. Refract. Surg., 20, pp. S576-S580, (2004) |
Abstract
Purpose: Recently the authors presented a technique that allows corneal thickness measurements along any meridian from optical sections obtained using a rotary scanning system. This paper presents 3-D mapping of the corneal thickness and topography of both corneal surfaces, obtained with the rotary system. Method: Corneal thickness and topography are computed from optical sections obtained by illumination with a collimated beam expanded in a fan by a small cylindrical lens. This lens is provided with motor driven rotation in order to perform automated rotary scan of the whole cornea. Two cameras are used to capture the images of the optical sections. Results: With this system it is possible to obtain 3-D representation of the corneal thickness as well as corneal topography. Corneal thickness and elevation maps are shown. Conclusions: Although still under development, this new optical system allows the measurement of the thickness of the whole cornea as well as 3-D mapping of both corneal surfaces.
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"abstract": "Purpose: Recently the authors presented a technique that allows corneal\nthickness measurements along any meridian from optical sections obtained using\na rotary scanning system. This paper presents 3-D mapping of the corneal\nthickness and topography of both corneal surfaces, obtained with the rotary\nsystem. Method: Corneal thickness and topography are computed from optical\nsections obtained by illumination with a collimated beam expanded in a fan by a\nsmall cylindrical lens. This lens is provided with motor driven rotation in\norder to perform automated rotary scan of the whole cornea. Two cameras are\nused to capture the images of the optical sections. Results: With this system\nit is possible to obtain 3-D representation of the corneal thickness as well as\ncorneal topography. Corneal thickness and elevation maps are shown.\nConclusions: Although still under development, this new optical system allows\nthe measurement of the thickness of the whole cornea as well as 3-D mapping of\nboth corneal surfaces.",
"arxiv_id": "physics/0405020",
"authors": [
"S. Franco",
"J. B. Almeida",
"M. Parafita"
],
"categories": [
"physics.gen-ph"
],
"journal_ref": "J. Refract. Surg., 20, pp. S576-S580, (2004)",
"title": "Corneal thickness and elevation maps computed from optical rotary scans",
"url": "https://arxiv.org/abs/physics/0405020"
},
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