ORA (Ocular Refractive Analyzer)
Ocular response analyzer. This test is done to find out the resistance and elasticity of the cornea. Additionally, this piece of equipment also takes non-contact intraocular pressure (pneumotonometer) and is specially designed to study the progress of a refractive surgical procedure and to detect keratoconus.
If the patient wears contact lenses, he or she should remove them prior to taking the exam.