Zeiss Humphrey Visual Field Analyzer This instrument is a key component in measuring a patient's subjective visual field changes. In other words, this instrument allows our doctors to understand how glaucoma or other disease processes affect what a patient is actually able to see. This instrument can help to distinguish glaucomatous damage from visual field changes due to other processes.
Heidelberg Optical Coherence Tomographer This instrument is a sensitive indicator of retinal nerve fiber layer loss. In other words, this instrument helps our doctors know changes are taking place in the back of a patient's eye prior to the patient noting actual vision changes. This instrument is capable of detecting nerve fiber layer loss long before it becomes apparent to a patient, and is very useful in tracking the effectiveness of a treatment regimen.
DGH Pachymeter This instrument is used to measure the thickness of a patient's cornea, which is the clear dome on the front of the eye. Corneal thickness is important in the diagnosis and treatment of glaucoma as it directly affects the intraocular pressure measurement done on office visits. Thin corneas are a risk factor for developing glaucoma, and must be taken into account by doctors when deciding what a "safe" intraocular pressure is for any given patient.
Dr. Holmes using the OCT on a patient.