Diagnostic tests

DIAGNOSTIC TESTS AND TREATMENT

⏺️Our network is specialized in eye diagnostic tests and eye chek-up.
Vista Vision eye clinics are equipped with state-of-the-art diagnostic equipment for the main eye diseases.
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⏺️The diagnostic examinations performed in our clinics guarantee optimal evaluation of eligibility for the laser treatment, a necessary condition for the success of the surgery.
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⏺️Prevention is the best weapon to assess the eye health status and effectively detect any vision problems and eye diseases, in order to promptly diagnose the outbreak of eye diseases that, in some cases, can impair the patient’s life significantly.

Diagnostic tests

⏺️OPTICAL COHERENCE TOMOGRAPHY (OCT)
Optical coherence tomography (OCT) is a non-invasive specialist examination of the eyes which, through an innocuous infrared laser probe, scans the cornea and the retina creating high-resolution tomographic sections, recreates the anatomy of the retinal macular region and diagnoses in advance any eye diseases.
OCT examination is simple, painless and not dangerous and can be performed on any patient.

⏺️AUTO REFRACTOMETER
Eye autorefractometer is a computerized diagnostic system that, during the complete eye examination, objectively measures the eye refractive error allowing the doctor to diagnose any eye disorders, to form an opinion about the refractive error and to verify if the eye of the patient suffers from vision problems such as myopia, presbyopia, astigmatism, and hyperopia.

⏺️OCULAR BIOMETRY
Ocular biometry is the measure of the eye size performed by ultrasound.
In particular, ocular biometry allows to:
▫️ Measure the axial length of the eyeball before the surgical extraction of the crystalline lens (in case of cataract), in order to determine the possibility to implant artificial crystalline lens;
▫️ Monitor the evolution of some diseases that change the ocular length (congenital glaucoma in young children, atrophy of the traumatized eye);
▫️ Distinguish between a megalocornea (large cornea, non-pathological nature) and a buphthalmos (eye enlargement in congenital glaucoma), between a microcornea (small cornea, non-pathological nature), and a microphthalmia (non-functional decrease of the eye diameter). This completely innocuous test lasts a few minutes and gives immediate results.

⏺️​CAMPIMETRY
Campimetry is a non-invasive diagnostic test that assesses, by projecting a small light source, the sensitivity and the functional state of the retina in the different regions of the visual field. This test is crucial for the study of glaucoma and for any neurological disease affecting the optic nerve.
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⏺️KERATOMETRY
Keratometry is a diagnostic eye test for examining the cornea; it consists in measuring the curvature radius of the cornea anterior surface and allow to obtain useful information to assess the eye refractive errors, especially to quantify astigmatism and to accurately measure the visual acuity of the patient. It is also an essential computerized technique for the early detection of keratoconus and in the procedures preceding cataract surgery.

⏺️CORNEAL PACHYMETRY
Corneal pachymetry is a test to measure the thickness of the cornea, used to assess the ocular tone (in particular in those patients with glaucoma) and to evaluate the eligibility for the excimer laser treatment in refractive surgery. Corneal pachymetry may also be useful for analysing specific corneal pathologies such as glaucoma and keratoconus.
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⏺️PUPILLOMETRY
Dynamic pupillometry is a test to measure the pupil diameter in different light conditions and allows to adjust the intervention parameters in order to prevent the patient from suffering from halos; this test is particularly useful and recommended in laser refractive surgery treatments. Pupillometry is performed without the administration of atropine because the pupil must be able to contract and dilate.

⏺️​OCULAR TONOMETRY
Applanation tonometry is the most widely used procedure to measure the intraocular pressure.

⏺️CORNEAL TOPOGRAPHY
Corneal topography is a diagnostic computerised test that allows to easily and safely measure the morphology and curvature of the corneal surface, creating a coloured map (called corneal map) in which each colour corresponds to a more or less accentuated curvature. Areas of flatter curvature are displayed in cool colours, whereas areas of steeper curvature are illustrated in warm colours. The use of a corneal topographer does not entail the contact with the eye, therefore it is an absolutely non-invasive examination.

These diagnostic tests play a crucial role in preventive eye care, enabling early detection of vision problems and eye diseases.