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Myrna K. Almaguer, Regina Velasco, Oscar Baca, Alejandro Babayan, Oscar Fernandez; Comparison Of Anterior Chamber Measurements Between Iol Master, Oct Visante And Orbscan II. Invest. Ophthalmol. Vis. Sci. 2011;52(14):4175.
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© ARVO (1962-2015); The Authors (2016-present)
Compare the differences in measurements of anterior chamber depth with OCT Visante , IOL Master and Orbscan II corneal topography in moderate and high miopes.
Prospective, comparative, transversal and observational study including patients over 18 years of age, phakic without history of eye diseases and that could cooperate to carry out this study. Exclusion criteria: patients with ocular pathology, previous ocular surgeries and under age patients. Elimination criteria: patients with loss of comparative monitoring of the 3 studies.
78 eyes of 44 patients, with a mean age of 28.4 years (DE: ± 6.24) with moderate and high myopia. The IOL master mean ACD measurement was 3.6733 + 0.22 mm, Orbscan II 3.698 + 0.21 mm and OCT visante ACD 3.763 + 0.20mm.Pearson's correlation test found that the 3 groups had a statistically significant correlation (r> 0.75) showing a higher correlation between measures of anterior chamber for the group of Orbscan and IOL Master (r = 0.812, p <0.001) , while the group of Orbscan and Visante was r = 0.774, p <0.001, and IOL Master Visante (0.741, p <0.001).
In the 3 studies, the measurements of the anterior chamber are similar. A good correlation exists between Visante-Orbscan and Orbscan-IOL Master, showing greater correlation between the values of the latest. In contrast with IOL Master -Visante that shows a moderate correlation. Therefore, the lack of existence of a gold standard instrument for this measurement, could make this comparison useful for calculation differences.
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