Cover testing is performed to determine the presence and type of ocular misalignment (strabismus) by having the patient look at a distant object while the examiner covers and uncovers one eye at a time. The process is repeated with a near stimulus. The patient’s extraocular muscle function and motility is then tested through examination of the movement of the eyes in the cardinal positions of gaze, screening for dysfunctions or palsies. Cover test results are entered into the patient’s medical record within the EMR for Doctor’s review.
The examiner uses a bright penlight to examine the patient’s pupils in a darkened room for the size, shape, equality, position, and responsiveness to light, to screen for neurologic and optic nerve anomalies. Pupil Assessment results are entered into the patient’s medical record within the EMR for Doctor’s review.
The examiner uses color plates to screen for color vision deficiencies, which may indicate a congenital or acquired disease. Color Vision Assessment results are entered into the patient’s medical record within the EMR for Doctor’s review.
The digital video slit lamp provides a 3-dimensional view of the structures in the anterior segment of the eye (e.g. cornea, lens, and iris) and part of the vitreous to screen for any abnormalities. Photographs document the following structures for each eye:
Photographic documentation of these structures via the slit lamp provides the Doctor with a magnified and detailed view of the anterior segment structures to aid in screening for a variety of eye conditions.
The intraocular pressure of the eyes are measures using non-contact air puff tonometry to flatten a fixed area of the cornea and measured in mmHg. This fully-automated device screens for elevated eye pressure, one of the risk factors for glaucoma, and is as accurate as the gold standard, Goldmann Applanation Tonometry. NCT results are entered into the patient’s medical record within the EMR for Doctor’s review.
The patient’s central and peripheral visual field is subjectively tested with an automated perimeter (visual field analyzer) to screen for abnormalities. Deterioration of the visual field may be caused by various medical conditions such as glaucoma, brain tumor, stroke, or neurological deficits. Many of these conditions may be otherwise asymptomatic.
Non-mydriatic fundus photography is performed to provide an overview of the health of the retina. 45 to 60 degree images of the posterior pole and 30-degree images centered on the optic nerve are acquired to inspect for anomalies associated with ocular and systemic diseases that affect the eye. Many of these diseases are asymptomatic.