Measuring aberration of the eye with wavefront technology

Colicchia, Giuseppe; Wiesner, Henning

doi:10.1088/0031-9120/41/4/002

Cited by 8 publications

(10 citation statements)

References 4 publications

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“…A research-based lesson on accommodation was developed by Wiesner et al [26]. This lesson uses inexpensive materials to teach students about the process of accommodation in human vision.…”

Section: Methods Of Teaching Light and Opticsmentioning

confidence: 99%

Understanding vision: students’ use of light and optics resources

Jones

Zollman

2014

Eur. J. Phys.

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We present a qualitative study designed to examine how students construct an understanding of the human eye and vision from their knowledge of light and optics. As would be expected, vast differences are shown to exist between pre-and post-instruction students in terms of not only resource use, but also willingness to transfer their existing knowledge. However, we have found that appropriate scaffolding can facilitate resource activation and guide students to construct an understanding of vision and vision defects.

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“…A research-based lesson on accommodation was developed by Wiesner et al [26]. This lesson uses inexpensive materials to teach students about the process of accommodation in human vision.…”

Section: Methods Of Teaching Light and Opticsmentioning

confidence: 99%

Understanding vision: students’ use of light and optics resources

Jones

Zollman

2014

Eur. J. Phys.

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“…The final part of the interview involved the aberrometer. We adapted the method of modeling an aberrometer used by Colicchia and Wiesner [10]. In this adaptation, the model shown in Fig.…”

Section: Methodsmentioning

confidence: 99%

“…Grid pattern formed with Collicchia and Wiesner model[10] from normal lens (left) and aberrated lens (right).…”

mentioning

confidence: 99%

Investigating Students' Ideas about Wavefront Aberrometry

McBride¹,

Zollman²

2007

AIP Conference Proceedings

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We describe a qualitative study of student understanding of the functions of the human eye and the resources used in understanding wavefront aberrometry, a relatively new method of diagnosing vision defects. Twelve students enrolled in an introductory physics class participated in a semi-structured clinical interview in which the functions of the eye, traditional diagnosis methods such as the eye chart, and wavefront aberrometry were discussed. Results from this study indicate that students do not initially understand the subjective nature of traditional diagnosis techniques and that the use of physical models of the eye and aberrometer can facilitate the transfer of prior knowledge to these concepts.

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“…Unfortunately, it is quite expensive but one can make something very similar to this for a very low cost by using a Styrofoam sphere and transparent plastic. [1,2] The students do this hands-on part first. Then we introduce some of the physics concepts.…”

Section: An Example Lesson: Wavefront Abberometrymentioning

confidence: 99%

Teaching about the Physics of Medical Imaging

Zollman¹,

McBride²,

Murphy³

et al. 2010

AIP Conference Proceedings

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Even before the discovery of X-rays, attempts at non-invasive medical imaging required an understanding of fundamental principles of physics. Students frequently do not see these connections because they are not taught in beginning physics courses. To help students understand that physics and medical imaging are closely connected, we have developed a series of active learning units. For each unit we begin by studying how students transfer their knowledge from traditional physics classes and everyday experiences to medical applications. Then, we build instructional materials to take advantage of the students' ability to use their existing learning and knowledge resources. Each of the learning units involves a combination of hands-on activities, which present analogies, and interactive computer simulations. Our learning units introduce students to the contemporary imaging techniques of CT scans, magnetic resonance imaging (MRI), positron emission tomography (PET), and wavefront aberrometry. The project's web site is http://web.phys.ksu.edu/mmmm/.

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Measuring aberration of the eye with wavefront technology

Abstract: A simple device is used to show both the wave aberration emerging from an eye model and the basic principles of measuring wavefront aberration with a Hartmann-Shack aberrometer.

Cited by 8 publications

References 4 publications

Understanding vision: students’ use of light and optics resources

Understanding vision: students’ use of light and optics resources

Investigating Students' Ideas about Wavefront Aberrometry

Teaching about the Physics of Medical Imaging

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