Diagnostic Procedures
As an ophthalmologist, Dr. Washington preforms advanced tests and diagnostic procedures to evaluate and treat eye injuries, eye disease, and visual complications that may be caused by other health conditions.
Humphrey Visual Field (HVF)
We assess patients' visual field using static automatic perimetry. Our HVF presents non-moving light stimulus (testing object) at specific locations to the patient for a short period of time and a patient's responses are recorded. Light stimuli are presented at varies degrees of intensity (luminesce) at different locations within the patient's field of vision. Based on the patient's response (click of button) the test determines a patient's threshold stimulus (seen 50% of time) for a given location within the visual field. Reports are displayed in grayscale, numeric value and can be compared to peer/age group.
Optical Coherence Tomography
Our OCT is a device that assess the thickness and health of your Optic nerve head (ONH), Retinal nerve fiber layer (RNFL), and macula (most sensitive/center portion of your retina). Through noninvasive means the OCT uses low coherence light projected toward your eye to produce cross sectional images of biological tissues (ONH, RNFL, and macula) in real time.
Optical Biometry
An optical biometer is a noninvasive automatic device that measures the anatomic measurements of the eye and power of the cornea (keratometry) to determine the appropriate intraocular lens (IOL) power for cataract surgery. The device can determine intraocular distances due to the refractive and anatomical differences of eye (Cornea, aqueous, lens, vitreous, retina). Our biometer measures axial length (AL), anterior chamber depth (ACD), Lens thickness (LT), white to white (WTW) (horizontal corneal diameter), paychymetry (corneal thickness), and keratometry (corneal curvature/power), and retinal thickness (RT, distance between ILM and RPE). These measurements are used for IOL power calculations, which are then implanted in the eye during cataract surgery after removal of cataract.