Abstract
Purpose: :
Compare the differences in measurements of anterior chamber depth with OCT Visante , IOL Master and Orbscan II corneal topography in moderate and high miopes.
Methods: :
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.
Results: :
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).
Conclusions: :
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.
Keywords: imaging methods (CT, FA, ICG, MRI, OCT, RTA, SLO, ultrasound) • imaging/image analysis: clinical • anterior chamber