A refraction test is usually given as part of a routine eye examination. It may also be called a vision test. This test tells our optometrist or ophthalmologist exactly what prescription is required in your glasses or contact lenses.
A-scan utilizes an ultrasound device for diagnostic testing. This device can determine the anatomic dimensions of the eye, like axial length, anterior chamber depth etc. This test can be useful in diagnosing common sight disorders. A-scans are also extremely beneficial in cataract surgeries, as they enable the ophthalmologist to determine the power of the intraocular lens (IOL) needed for the artificial implant.
This is a procedure used to measure the curvature of the cornea (corneal curvature with the aid of a device known as keratometer. No special preparation is required, on the part of the patient.
A pachymeter is a medical device used to measure the thickness of the eye’s cornea. It is used prior to a Corneal Molding evaluation, LASIK surgery, and is useful in screening for patients suspected of developing glaucoma.
Corneal topography is a computer assisted diagnostic tool that creates a three-dimensional map of the surface curvature of the cornea. The cornea (the front window of the eye) is responsible for about 70 percent of the eye’s focusing power.
Anterior Segment Photography
Slit Lamp Anterior Segment Photography is documentation of microscopic and obscure details of the transparent, translucent and opaque structures of the anterior segment and surrounding areas of the eye.
FFA/ Posterior Segment Photography
The posterior segment is the portion of the eye behind the lens, and it primarily refers to the retina, the inner neural lining of the eye, but also includes the vitreous humor, choroid and optic nerve. … Posterior segment imaging refers to imaging these structures.