At Vista Eye Centre, we offer state-of-the-art non-invasive diagnostic testing during the comprehensive eye examination, in preparation for laser, injection and surgical eye treatments, and to diagnose and monitor most eye conditions.
SLIT LAMP EXAMINATION
A slit lamp is a microscope mounted on a table which allows your ophthalmologist to examine your eye in order to determine your eye health and to detect disease. With the slit lamp, your ophthalmologist can look at specific structures at the front, middle and back of the eye.
AUTO-REFRACTION AND KERATOMETRY
The autorefractor is an instrument used during an eye examination that provides an objective measurement of a person's refractive error and therefore determines if corrective lenses (glasses or contact lenses) will improve your vision. A keratometer measures the front curvature of your eye to detect astigmatism.
CORNEAL TOPOGRAPHY
Corneal topography is an imaging test that maps the surface curvature or shape and power of the front of the eye or cornea. It is used to diagnose and measure corneal conditions and also for pre-cataract surgery assessment and post-cataract surgery investigations of the eye.
VISUAL FIELD TESTING
Visual field testing is used to determine how wide an area your eye can see when you focus straight ahead. This test is used to diagnose and monitor eye conditions including glaucoma, problems with the optic nerve or retina.
IOL MASTER 700 and A SCAN
An A-scan ultrasound and IOL Master are used to provide accurate measurements for intraocular lens implants used in cataract surgery. The A scan uses ultrasonic waves to measure dimensions of the eye and to calculate the intraocular lens (IOL) power for cataract surgery, whereas the IOL master uses laser technology to measure the length and front curvature of the eye and to calculate the recommended intraocular (IOL) lens power.
OCULAR COHERENCE TOMOGRAPHY (OCT)
Ocular coherence tomography (OCT) is an imaging test, which uses light waves to take cross-sectional pictures of the retina (with image resolution better than 10 microns) showing distinctive layers at the back of the eye, and helping to diagnose and manage conditions such as diabetic retinopathy, macular degeneration, uveitis, narrow angles and glaucoma.