Relevance. Optical coherence tomography (OCT) has become widespread in ophthalmology [9,10], especially where its high resolution and non-invasiveness allow for repeated use on the retina and anterior segment of the eye [11–17]. Purpose of the study. To evaluate the accuracy of optical coherence tomography (OCT) (RTVue XR, Optovue, USA) in diagnosing keratoconus by measuring the central angle distance and the central radius of curvature. Materials and methods. Corneal topography, ultrasound pachymetry, Scheimpflug imaging, and anterior segment optical coherence tomography (ASOCT) were performed in 48 patients with keratoconus. Results and conclusion. The mean optical power, effective with AS-OCT, composite 51.65 ± 0.78 D, dependent on rotor topography, total 50.19 ± 0.64 D, and with the Scheimpflug camera consolidated 50.78 ± 0.82 D. The mean central corneal thickness measured by OCT was 486±73μm, that measured by ultrasound was - 475 ± 49 μm, using the Scheimpflug Oculyzer II camera - 481 ± 66 μm. RTVue XR may be a useful alternative for measuring frontal corneas and central corneal thickness in eyes with keratoconus. Indicators of the thickness of the corneal epithelium are possible only when carried out using OCT (47±5 μm); a diagnostic sign of keratoconus is thinning of the corneal epithelium in the lower paracentral zone [34].
| Mualliflar | Туйчибаева Д.М., Ким А.А. |
|---|---|
| Jurnal | Передовая Офтальмология |
| Nashr sanasi | 2024-06-07 |
| Jild | 7 |
| Son | 1 |
| Betlar | 64-70 |
| Til | ru |
| DOI | 10.57231/j.ao.2024.7.1.011 |
DOI: 10.57231/j.ao.2024.7.1.011 · Maqolaning asl sahifasi
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