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myopia  -  Key Effectiveness Variables of Laser Equipment

Month Laser Type N UCVA MRSE FDA Reports  -  Tables and Page Numbers
> 20/20 > 20/40 ± 0.5 D ± 1.0 D ± 2.0 D
95% CI 95% CI 95% CI 95% CI 95% CI
   
1 Zeiss MEL-80 326 91.6 99.7 80.6 96.3 100.0 Table 6, page 19 
Nidek EC-5000 441 45.5 82.5 58.8 80.1 95.1 Table 7-1, page 7
Technolas 217 Z 117 92.3 100.0 81.2 94.0 - Table 5B, page 20
VISX Star S4 80 91.3 98.8 92.5 98.8 100.0 Table 3-4b, page 3-6, Table 3-6b, page 3-9
Wavelight Allegretto Wave 166 92.6 100.0 96.6 98.9 100.0 Table 7, page 35
 
3 Zeiss MEL-80 331 92.5 99.7 84.9 95.8 99.7 Table 6, page 19 
Nidek EC-5000 396 42.0 76.8 56.1 77.6 93.4 Table 7-1, page 7
Technolas 217Z 117 90.6 100.0 84.6 94.9 - Table 5B, page 20
VISX Star S4 79 91.1 96.2 86.1 100.0 100.0 Table 3-4b, page 3-6, Table 3-6b, page 3-9
Wavelight Allegretto Wave 165 91.9 100.0 95.2 100.0 100.0 Table 7, page 35
 
6 Zeiss MEL-80 328 92.7 99.4 76.8 95.5 100.0 Table 6, page 19
Nidek EC-5000 640 - 84.4 60.3 85.2 97.1 Table 7-1, page 7
Technolas 217Z 117 94.0 100.0 84.6 96.6 - Table 5B, page 20
VISX Star S4 68 95.8 100.0 91.5 98.6 100.0 Table 3-4b, page 3-6, Table 3-6b, page 3-9
Wavelight Allegretto Wave 154 90.8 98.8 93.5 100.0 100.0 Table 7, page 35
 
12 Zeiss MEL-80 - - - - - - No data available
Nidek EC-5000 433 - 85.7 62.7 87.1 98.2 Table 7-1, page 7
Technolas 217Z - - - - - - No data available
VISX Star S4 23 100.0 100.0 87.0 100.0 100.0 Table 3-4b, page 3-6, Table 3-6b, page 3-9
Wavelight Allegretto Wave - - - - - - No data available
Note Many combinations of treatment results are given in the reports.  The above results are for 'pure' spherical myopiamyopia is also known as nearsightedness. It results from an eye that is larger in size compared to a normal sized eye and/or a cornea that is relatively too steep, causing the image to focus in front of the retina instead of on the retina itself. See Info on Eyes, Optics and Refractive Errors - myopia., but results are also given for myopia and astigmatismAstigmatism is a condition caused by a cornea that has more than one curvature, similar to a rugby ball. The same image, therefore, focuses on multiple points in front of, on and/or behind the cornea, creating multiple and ghost images. Astigmatism may also be found in association with either myopia or hyperopia, which complicates the condition substantially. See Info on Eyes, Optics and Refractive Errors - Astigmatism. combined, different degrees of myopic correction done, results of retreatments, etc.