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Ultrasonography has become a critical ancillary test in the clinical practice of ophthalmology. It is commonly used as a standardized method for assessing intraocular biometry. The PalmScan ultrasonography (PsU) is a portable A-scan device that uses the same principles as the standard A-scan. The aim of the study is to compare the reliability of their measurements, in order to use them indistinctively.
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| Label | Type | Description | Intervention Names |
|---|---|---|---|
| 1 | PalmScan biometric group |
| |
| 2 | A-mode ultrasonography biometric group |
|
| Name | Type | Description | Arm Group Labels | Other Names |
|---|---|---|---|---|
| PalmScan A2000 ultrasonography system (Micro Medical Devices, Calabasas, CA) | Device | PalmScan biometric measurements |
|
| Measure | Description | Time Frame |
|---|---|---|
| axial length (AL). | during examination | |
| Anterior Chamber Deep (ACD) | during examination | |
| Lens Thickness (LT) | during examination |
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Inclusion Criteria:
Exclusion Criteria:
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All patients who need axial length calculation.
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| Facility | Status | City | State | ZIP | Country | Contacts |
|---|---|---|---|---|---|---|
| Asociación para Evitar la Ceguera en México | Mexico City | Mexico City | 04030 | Mexico |
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| Standard A-mode ultrasound (Eye Cubed™, Ellex, Adelaide, Australia). | Device | A-mode biometric measurements group |
|