IMPORTANCE
Glaucoma is a common cause of visual impairment in the Veterans
Affairs (VA) health care system, but to our knowledge, no data exist
concerning tertiary glaucoma care (ie, laser and filtering surgery).
OBJECTIVE
To determine whether the rate of tertiary glaucoma care differs
among veterans cared for through the 4 different eye care delivery models
that are present in the VA: optometry-only clinics, ophthalmology-only
clinics, clinics with optometry and ophthalmology functioning as a single
integrated clinic with ophthalmology as the lead, and clinics with optometry
and ophthalmology functioning as separate clinics.
DESIGN, SETTING, AND PARTICIPANTS
In this retrospective review of the Veterans Health Administration
Support Service Center database, 490 926 veterans with a glaucoma-related
diagnosis received care from 136 VA medical centers during fiscal year 2016.
Demographic and baseline clinical factors, International Statistical
Classification of Diseases and Related Health Problems,
Tenth Revision, and Current Procedural
Terminology codes, and the rates of glaucoma surgery procedures
were extracted from the database. The organizational structure of each VA
eye clinic was obtained. Univariate and multivariate regression analyses
were performed for log percent for laser peripheral iridotomy (LPI), laser
trabeculoplasty (LTP), and filtering surgery.
MAIN OUTCOMES AND MEASURES
Rates of LPI, LTP, and filtering surgery.
RESULTS
Of the 490 926 veterans with a glaucoma-related diagnosis, 465 842
(94.9%) were male, 309 677 (63.1%) were white, and 203 243 (41.4%) were aged
65 to 74 years. The rate of LPI was 0.30%, 0.28%, 0.67%, and 0.69% in
optometry-only clinics, ophthalmology-only clinics, integrated clinics, and
separated clinics, respectively (P < .001). The rate
of LTP was 0.31%, 1.06%, 0.93%, and 0.92% in care delivery models that
included optometry-only clinics, ophthalmology-only clinics, integrated
clinics, and separated clinics, respectively (P <
.001). The rate of filtering surgery was 0.32%, 0.51%, 0.69%, and 0.60% in
optometry-only clinics, ophthalmology-only clinics, integrated clinics, and
separated clinics, respectively (P < .001).
Multivariate regression analyses showed that these differences remained
significantly different even after adjusting for potential confounders.
CONCLUSIONS AND RELEVANCE
Disparities exist in the use of tertiary glaucoma services within
the VA, and different care delivery models may play a role. Outcomes of
glaucoma care for the different models of eye care delivery were not
analyzed in this study.