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TJ Kim, ME Wagner, LA Fannin, JC Rabin; A Comparative Study Between the PanOpticTM Ophthalmoscope and the Traditional Direct Ophthalmoscope . Invest. Ophthalmol. Vis. Sci. 2002;43(13):352.
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Purpose: The traditional direct ophthalmoscope provides a limited5 degree field of view with an image magnified 15 times. A newophthalmoscope, the PanOpticTM, provides an enlarged field ofview of 25 degrees with a 26% increase in magnification. Thisstudy compares the PanOpticTM ophthalmoscope and the traditionaldirect ophthalmoscope. Methods: Second year medical school students(n=33) were introduced to the direct ophthalmoscope and thePanOpticTM. Each participant used both devices to assess eachother’s fundus structures. One eye of each participantwas dilated. Participants used a 4-point quantitative scaleto rate ease of use, visualization of the optic nerve, retinalvessels, and macula, and indicated overall device preference.A nonparametric paired comparisons test (Wilcoxon signed ranks)was used for data analysis. Results: See Tables 1 and 2. ThePanOpticTM was rated significantly higher than the traditionaldirect ophthalmoscope along the following dimensions: ease ofuse (Z=-2.93, p<0.005), visualization of optic nerve (Z=-3.54,p<0.0005), visualization of the retinal vessels (Z=-3.38,P<0.005), and visualization of the macula (Z=-2.84, p<0.005).29 (88%) participants indicated an overall preference for thePanOpticTM, 3 (9%) participants preferred the traditional directophthalmoscope, and 1 (3%) participant had no preference. *n=32;ON=optic nerve, RV=retinal vessels, MAC=macula. Conclusion:The PanOpticTM ophthalmoscope provides an excellent view ofthe optic nerve and fundus. The PanOpticTM ophthalmoscope mayenhance diagnostic capabilities given its ease of use and enlargedfield of view of the fundus structures. Table 1. PanOpticTMFrequency of Scores (percent) View OriginalDownload SlideView OriginalDownload SlideTable 2. Direct OphthalmoscopeFrequency of Scores (percent) View OriginalDownload SlideView OriginalDownload Slide
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