Differences in characteristics of Medicare patients treated by ophthalmologists and optometrists.

PURPOSE: To quantify differences in the age, gender, race, and clinical complexity of Medicare beneficiaries treated by ophthalmologists and optometrists in each of the United States. DESIGN: Cross-sectional study based on publicly accessible Medicare payment and utilization data from 2012 through 2017. METHODS: For each ophthalmic and optometric provider, demographic information of treated Medicare beneficiaries was obtained from the Medicare Provider Utilization and Payment Data from the Centers for Medicare and Medicaid Services (CMS) for the years 2012 through 2017. Clinical complexity was defined using CMS Hierarchical Condition Category (HCC) coding. RESULTS: From 2012 through 2017, ophthalmologists in every state treated statistically significantly older beneficiaries, with the greatest difference (4.99 years in 2014) between provider groups seen in Rhode Island. In most states there was no gender difference among patients treated by the providers but in 46 states ophthalmologists saw a more racially diverse group of beneficiaries. HCC risk score analysis demonstrated that ophthalmologists in all 50 states saw more medically complex beneficiaries and the differences were statistically significant in 47 states throughout all six years. CONCLUSIONS: Although there are regional variations in the characteristics of patients treated by ophthalmologists and optometrists, ophthalmologists throughout the United States manage older, more racially diverse, and more medically complex Medicare beneficiaries.

A needs assessment for a minor eye condition service within Leeds, Bradford and Airedale, UK.

BACKGROUND: There are a number of limitations to the present primary eye care system in the UK. Patients with minor eye conditions typically either have to present to their local hospital or GP, or face a charge when visiting eye care professionals (optometrists). Some areas of the UK have commissioned enhanced community services to alleviate this problem; however, many areas have not. The present study is a needs assessment of three areas (Leeds, Airedale and Bradford) without a Minor Eye Conditions Service (MECS), with the aim of determining whether such a service is clinically or economically viable. METHOD: A pro forma was developed for optometrists and practice staff to complete when a patient presented whose reason for attending was due to symptoms indicative of a problem that could not be optically corrected. This form captured the reason for visit, whether the patient was seen, the consultation funding, the outcome and where the patient would have presented to if the optometrists could not have seen them. Optometrists were invited to participate via Local Optical Committees. Results were submitted via a Google form or a Microsoft Excel document and were analysed in Microsoft Excel. RESULTS: Seventy-five percent of patients were managed in optometric practice. Nine and 16% of patients required subsequent referral to their General Practitioner or hospital ophthalmology department, respectively. Should they not have been seen, 34% of patients would have presented to accident and emergency departments and 59% to their general practitioner. 53% of patients paid privately for the optometrist appointment, 28% of patients received a free examination either through use of General Ophthalmic Service sight tests (9%) or optometrist good will (19%) and 19% of patients did not receive a consultation and were redirected to other providers (e.g. pharmacy, accident and emergency or General Practitioner). 88% of patients were satisfied with the level of service. Cost-analyses revealed a theoretical cost saving of £3198 to the NHS across our sample for the study period, indicating cost effectiveness. CONCLUSIONS: This assessment demonstrates that a minor eye condition service in the local areas would be economically and clinically viable and well received by patients.

Assessing the Progress towards Achieving "VISION 2020: The Right to Sight" Initiative in Ghana.

Purpose: The aim of this study was to analyse eye health delivery in Ghana and examine the progress towards achieving VISION 2020 indicator targets. Methods: This descriptive cross-sectional study was conducted between October 2017 and May 2018. It used a mixed method approach including desk-based reviews, a questionnaire-based survey of eye facilities in Ghana, and interviews with eye health system stakeholders to collect information on eye health delivery in facilities owned by the Ghana Health Service (GHS), quasigovernmental bodies (security agencies), and Christian Association of Ghana (CHAG). The information was benchmarked against the World Health Organization (WHO) targets for achieving the goals of VISION 2020. Results: The magnitude of blindness and moderate to severe visual impairment (without pinhole) was 0.9% and 3.0%, respectively. The number of ophthalmologists available at the country level was 80.6% of the VISION 2020 target with optometrists and ophthalmic nurses exceeding targets for VISION 2020. The distribution of human resources was heavily skewed towards two out of the 10 regions in Ghana. Cataract surgical rate was low and met 25% of the WHO target. Basic equipment for refraction was available in the majority of facilities; however, there was a general lack of specialised eye care equipment across the country. Comparatively, CHAG facilities were better equipped than GHS facilities at the same level. Conclusion: The Government of Ghana should revitalize the goals of VISION 2020 beyond the year 2020 and spearhead a concerted effort to ensure equitable distribution of human and infrastructural resources across the country.

Changes in Electronic Health Record Use Time and Documentation over the Course of a Decade.

PURPOSE: With the current wide adoption of electronic health records (EHRs) by ophthalmologists, there are widespread concerns about the amount of time spent using the EHR. The goal of this study was to examine how the amount of time spent using EHRs as well as related documentation behaviors changed 1 decade after EHR adoption. DESIGN: Single-center cohort study. PARTICIPANTS: Six hundred eighty-five thousand three hundred sixty-one office visits with 70 ophthalmology providers. METHODS: We calculated time spent using the EHR associated with each individual office visit using EHR audit logs and determined chart closure times and progress note length from secondary EHR data. We tracked and modeled how these metrics changed from 2006 to 2016 with linear mixed models. MAIN OUTCOME MEASURES: Minutes spent using the EHR associated with an office visit, chart closure time in hours from the office visit check-in time, and progress note length in characters. RESULTS: Median EHR time per office visit in 2006 was 4.2 minutes (interquartile range [IQR], 3.5 minutes), and increased to 6.4 minutes (IQR, 4.5 minutes) in 2016. Median chart closure time was 2.8 hours (IQR, 21.3 hours) in 2006 and decreased to 2.3 hours (IQR, 18.5 hours) in 2016. In 2006, median note length was 1530 characters (IQR, 1435 characters) and increased to 3838 characters (IQR, 2668.3 characters) in 2016. Linear mixed models found EHR time per office visit was 31.9±0.2% (P < 0.001) greater from 2014 through 2016 than from 2006 through 2010, chart closure time was 6.7±0.3 hours (P < 0.001) shorter from 2014 through 2016 versus 2006 through 2010, and note length was 1807.4±6.5 characters (P < 0.001) longer from 2014 through 2016 versus 2006 through 2010. CONCLUSIONS: After 1 decade of use, providers spend more time using the EHR for an office visit, generate longer notes, and close the chart faster. These changes are likely to represent increased time and documentation pressure for providers. Electronic health record redesign and new documentation regulations may help to address these issues.

Differences in Tertiary Glaucoma Care in the Veterans Affairs Health Care System.

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.

Regional differences in vision health: findings from Mwanza, Tanzania.

Background: Visual impairment in developing countries has both social and economic impact on individuals and communities. Understanding the subjective visual functioning of populations will allow for local policymakers to identify the need for optometric or ophthalmic services in their communities. Methods: The authors surveyed 644 adult patients in Mwanza, Tanzania at three clinics (Buzuruga, Mwananchi and Kisesa) using a modified Visual Functioning Questionnaire 25. Responses were categorized into General health, General vision, Ocular pain, Near activities, Distance activities, Social function, Mental health, Role difficulties, Color vision, Peripheral vision and Dependency. Results: Patients at Buzuruga reported the lowest scores on most subscales. Of 100 employed patients, 37% claimed to have at least some difficulty in performing job duties due to their eyesight. At Kisesa, 146 (246/221) patients (66.1%) had never had an eye exam, compared with 134/227 (59.0%) at Buzuruga and 69/173 (39.9%) at Mwananchi (p<0.01). Common reasons for not seeing an eye doctor were the perceived expense and lack of vision problems. Conclusions: Due to regional differences in visual functioning in Mwanza, a national effort for vision health cannot be entirely successful without addressing the individualized needs of local communities. Reducing the cost of vision care appointments may expand vision health care utilization in Mwanza.

Optometry-facilitated teleophthalmology: an audit of the first year in Western Australia.

BACKGROUND: Lions Outback Vision has run a state-wide teleophthalmology service since 2011. In September 2015 the Australian federal government introduced a Medicare reimbursement for optometry-facilitated teleophthalmology consultations under specific circumstances. This audit demonstrates the first 12 months experience with this scheme. We aim to provide practical insights for others looking to embed a telemedicine program as part of delivering outreach clinical services. METHODS: A 12-month retrospective audit was performed between September 2015 and August 2016, inclusive. A research officer used a specifically designed data extraction tool to record information from all teleophthalmology consultations performed in the time period. The primary outcome was the diagnosis at the end of the teleophthalmology consultation. Secondary outcome measures included the number of teleconsultations, cataract surgery rate, remoteness area of patients referred and imaging accompanying the referral. RESULTS: In the 12-month period, 709 patients were referred resulting in 683 teleophthalmology teleconsultations. Cataract was the most frequent diagnosis (n = 287, 42.7 per cent), followed by glaucoma (n = 77, 11 per cent), age-related macular degeneration (n = 30, 4.4 per cent) and diabetic retinopathy (n = 26, 3.8 per cent). Of those who had teleconsultations, 98.6 per cent were from Outer Regional, Remote or Very Remote Australia. One or more accompanying images or investigations were part of 349 (49 per cent) teleconsultations, most commonly optical coherence tomography (215, 30 per cent) and fundus photography (148, 21 per cent). Face-to-face consultations were undertaken at an outreach clinic in 23 (3.4 per cent) cases, to determine the diagnosis. There were no statistically significant factors associated with attendance at teleophthalmology consultation, or for successfully undergoing cataract surgery. CONCLUSION: Teleophthalmology is a valuable adjunct to regional outreach ophthalmology services, providing patients with increased access to specialist care for a wide range of ophthalmic conditions, and more efficient access to surgical care.

Practice Patterns Among Eye Care Providers at US Teaching Hospitals With Regard to Assessing and Educating Patients About Smoking.

PURPOSE: To investigate practice patterns of eye care providers at academic medical centers in the United States (US) with regard to assessing patients' smoking status and exposure, educating patients regarding ocular risks of smoking, and counseling patients about smoking cessation. DESIGN: Cross-sectional survey. METHODS: An anonymous survey including multiple choice and Likert-style questions was constructed on http://www.surveymonkey.com and emailed to the coordinators of all 113 US ophthalmology residency programs, with a request to forward to all faculty, fellows, residents, and optometrists at their institution. Main outcome measures include proportion of eye care providers who assess patients' smoking status, educate patients regarding ocular risks of smoking, and discuss with patients smoking cessation options. RESULTS: Of the 292 respondents, 229 (78%) "always" or "periodically" ask patients about their smoking status, 251 (86%) "seldom" or "never" ask patients about secondhand smoke exposure, 245 (84%) "always" or "periodically" educate patients about ocular diseases associated with smoking, 142 (49%) "seldom" or "never" ask patients who smoke about their willingness to quit smoking, and 249 (85%) "seldom" or "never" discuss potential methods and resources to assist with smoking cessation. CONCLUSIONS: Most eye care providers assess patients' smoking status and educate patients regarding ocular risks of smoking. However, approximately half do not ask, or seldom ask, about patients' willingness to quit smoking, and most do not discuss smoking cessation options.

The Effectiveness, cost-effectiveness and acceptability of Community versus Hospital Eye Service follow-up for patients with neovascular age-related macular degeneration with quiescent disease (ECHoES): a virtual randomised balanced incomplete block trial.

BACKGROUND: Patients with neovascular age-related macular degeneration (nAMD) usually attend regular reviews, even when the disease is quiescent. Reviews are burdensome to health services, patients and carers. OBJECTIVES: To compare the proportion of correct lesion classifications made by community-based optometrists and ophthalmologists from vignettes of patients; to estimate the cost-effectiveness of community follow-up by optometrists compared with follow-up by ophthalmologists in the Hospital Eye Service (HES); to ascertain views of patients, their representatives, optometrists, ophthalmologists and clinical commissioners on the proposed shared care model. DESIGN: Community-based optometrists and ophthalmologists in the HES classified lesions from vignettes comprising clinical information, colour fundus photographs and optical coherence tomography images. Participants' classifications were validated against experts' classifications (reference standard). SETTING: Internet-based application. PARTICIPANTS: Ophthalmologists had to have ≥ 3 years post-registration experience in ophthalmology, have passed part 1 of the Royal College of Ophthalmologists, Diploma in Ophthalmology or equivalent examination, and have experience in the age-related macular degeneration service. Optometrists had to be fully qualified, be registered with the General Optical Council for ≥ 3 years and not be participating in nAMD shared care. INTERVENTIONS: The trial sought to emulate a conventional trial in comparing optometrists' and ophthalmologists' decision-making, but vignettes, not patients, were assessed; therefore, there were no interventions. Participants received training prior to assessing vignettes. MAIN OUTCOME MEASURES: Primary outcome - correct classification of the activity status of a lesion based on a vignette, compared with a reference standard. Secondary outcomes - frequencies of potentially sight-threatening errors, participants' judgements about specific lesion components, participant-rated confidence in their decisions and cost-effectiveness of follow-up by community-based optometrists compared with HES ophthalmologists. RESULTS: In total, 155 participants registered for the trial; 96 (48 in each professional group) completed training and main assessments and formed the analysis population. Optometrists and ophthalmologists achieved 1702 out of 2016 (84.4%) and 1722 out of 2016 (85.4%) correct classifications, respectively [odds ratio (OR) 0.91, 95% confidence interval (CI) 0.66 to 1.25; p = 0.543]. Optometrists' decision-making was non-inferior to ophthalmologists' with respect to the pre-specified limit of 10% absolute difference (0.298 on the odds scale). Frequencies of sight-threatening errors were similar for optometrists and ophthalmologists [57/994 (5.7%) vs. 62/994 (6.2%), OR 0.93, 95% CI 0.55 to 1.57; p = 0.789]. Ophthalmologists assessed lesion components as present less often than optometrists and were more confident about their lesion classifications than optometrists. The mean care-pathway cost for assessment was very similar by group, namely £397.33 for ophthalmologists and £410.78 for optometrists. The optometrist-led monitoring reviews were slightly more costly and less effective than ophthalmologist-led reviews, although the differences were extremely small. There was consensus that optometrist-led monitoring has the potential to reduce clinical workload and be more patient-centred. However, potential barriers are ophthalmologists' perceptions of optometrists' competence, the need for clinical training, the ability of the professions to work collaboratively and the financial feasibility of shared care for Clinical Commissioning Groups. CONCLUSIONS: The ability of optometrists to make nAMD retreatment decisions from vignettes is non-inferior to that of ophthalmologists. Various barriers to implementing shared cared for nAMD were identified. FUTURE WORK RECOMMENDATIONS: The Effectiveness, cost-effectiveness and acceptability of Community versus Hospital Eye Service follow-up for patients with neovascular age-related macular degeneration with quiescent disease (ECHoES) study web application was robust and could be used for future training or research. The benefit of reducing HES workload was not considered in the economic evaluation. A framework of programme budgeting and marginal analysis could explicitly explore the resource implications of shifting resources within a given health service area, as the benefit of reducing HES workload was not considered in the economic evaluation. Future qualitative research could investigate professional differences of opinion that were identified in multidisciplinary focus groups. TRIAL REGISTRATION: Current Controlled Trials ISRCTN07479761. FUNDING: This project was funded by the National Institute for Health Research (NIHR) Health Technology Assessment programme and will be published in full in Health Technology Assessment; Vol. 20, No. 80. See the NIHR Journals Library website for further project information.

Evaluating Access to Eye Care in the Contiguous United States by Calculated Driving Time in the United States Medicare Population.

PURPOSE: To quantify the proximity to eye care in the contiguous United States by calculating driving routes and driving time using a census-based approach. DESIGN: Cross-sectional study based on United States (US) census data, Medicare payment data, and OpenStreetMap. PARTICIPANTS: 2010 US census survey respondents older than 65 years. METHODS: For each state in the United States, the addresses of all practicing ophthalmologists and optometrists were obtained from the 2012 Medicare Provider Utilization and Payment Data from the Centers for Medicare and Medicaid Services (CMS). The US census data from 2010 then were used to calculate the geolocation of the US population at the block group level and the number of people older than 65 years in each location. Geometries and driving speed limits of every road, street, and highway in the United States from the OpenStreetMap project were used to calculate the exact driving distance and driving time to the nearest eye care provider. MAIN OUTCOME MEASURES: Driving time and driving distance to the nearest optometrist and ophthalmologist per state. RESULTS: Driving times for 3.79×107 persons were calculated using a total of 3.88×107 available roads for the 25 508 optometrists and 17 071 ophthalmologists registered with the CMS. Nationally, the median driving times to the nearest optometrist and ophthalmologist were 2.91 and 4.52 minutes, respectively. Ninety percent of the population lives within a 13.66- and 25.21-minute drive, respectively, to the nearest optometrist and ophthalmologist. CONCLUSIONS: While there are regional variations, overall more than 90% of the US Medicare beneficiary population lives within a 30-minute drive of an ophthalmologist and within 15 minutes of an optometrist.

Demographics of older keratoconics in Wales and their mortality rates-Where are the older keratoconics?

AIM: The aim of this study was to identify keratoconics at least 40 years of age attending Welsh optometric hospital services, look at their demographics and mortality rates, and test the hypothesis that they die earlier than the general population. METHODS: Keratoconic patients born before 1972 were identified retrospectively through contact lens services across 5 hospitals in Wales, United Kingdom. Patients' notes were reviewed to confirm the diagnosis and collect demographic data. The Exeter patient registration system was used to trace if patients were deceased or alive. General population data was obtained from the Office for National Statistics. RESULTS: A total of 202 keratoconics at least 40years of age were identified. The mean age was 50.8years, 62% of patients were male and 97% Caucasian. Mean age at diagnosis was 28.7 years. Two patients were deceased, one died in 2012 and one in 2013. In 2012 mortality rates for studied patients and the general populations were 0.005 and 0.019, respectively (p 0.03). CONCLUSIONS: Mortality rates for the identified keratoconics were found to be significantly lower than the mortality rates for the general population in 2012. Collected data represents 52% of expected keratoconics over the age of 40, calculated based on disease prevalence, study inclusion criteria and population numbers within the regions included in the study. Thus suggesting the reason for lack of older keratoconics in the National Health Service optometric clinics could be non-attendance rather than higher mortality rates.

Eye care services utilisation among pregnant women in Nigeria.

One hundred and sixty-five pregnant Nigerian women attending the antenatal clinic of LAUTECH teaching hospital, Ogbomoso, Nigeria between January and April 2014 were interviewed using a structured questionnaire. Socio-demographic characteristics of the respondents were obtained. Respondents were also asked: if they had had their eye examined by an eye specialist during the index pregnancy, frequencies of visit to eye care centers and indications for their visitation. A history of previous eye examination by eye care specialist/visit to eye clinic was considered as eye care utilisation. Selection of eligible subjects who consented to participate in the study was done using simple random technique. Logistic regression model was used to control sociodemographic and obstetric factors in order to determine independent covariate factor influencing the use of eye care services. Among the population studied, only 46 (32%) had eye examination during the index pregnancy. Level of education and occupational status of the respondents were found to be statistically significant factors (p = 0.001 and 0.008, respectively). There is a need for a policy that will encourage regular eye care services usage during pregnancy.

"Doctor my eyes": A natural experiment on the demand for eye care services.

Preventive health care is promoted by many organisations from the World Health Organisation (WHO) to regional and national governments. The degree of cost-sharing between individuals and the health care service affects preventive service use. For instance, out-of-pocket fees that are paid by individuals for curative services reduce preventive care demand. We examine the impact of subsidised preventive care on demand. We motivate our analysis with a theoretical model of inter-temporal substitution in which individuals decide whether to have a health examination in period one and consequently whether to be treated if required in period two. We derive four testable hypotheses. We test these using the subsidised eye care policy introduced in Scotland in 2006. This provides a natural experiment that allows us to identify the effect of the policy on the demand for eye examinations. We also explore socio-economic differences in the response to the policy. The analysis is based on a sample from the British Household Panel Survey of 52,613 observations of people, aged between 16 and 59 years, living in England and Scotland for the period 2001-2008. Using the difference-in-difference methodology, we find that on average the policy did not affect demand for eye examinations. We find that demand for eye examinations only increased among high income households, and consequently, inequalities in eye-care services demand have widened in Scotland since the introduction of the policy.

Scope of practice of optometrists working in the UK Hospital Eye Service: a national survey.

PURPOSE: The role of the optometrist in the Hospital Eye Service (HES) has undergone significant development in recent years to include extended areas of clinical practice more traditionally undertaken by ophthalmologists, commensurate with a growing demand for increased capacity in ophthalmic services. In this report, we present the findings from a national survey of the scope of practice of optometrists working in the UK HES. METHODS: A survey was designed to incorporate questions on the provision of core services before seeking detailed information on the scope of practice within extended roles to include: ophthalmic sub-specialist areas where optometrists currently practice; the undertaking of specific procedures within these services; the relative autonomy of practice within these extended roles; and the training and accreditation requirements for working within extended roles. SurveyMonkey was used to disseminate the survey to the head of optometry in 79 HES units throughout the UK. RESULTS: Responses were received from 70 of the 79 (89%) survey invitations. A substantial majority of respondents (N = 67/70, 96%) indicated that optometrists undertook extended roles. Glaucoma is the leading extended role service provided by optometrists (92% of respondents providing extended role services), with roles in macula (71%), medical retina/diabetes (67%), cataract (55%) and corneal services (55%) also being relatively common. A wide variety of clinical procedures or interventions are undertaken as part of these services, which for a small number of optometrists now also includes the undertaking of specific laser procedures. There is evidence for a significant degree of autonomy within these extended roles. The primary mode of training is an 'apprentice' model, incorporating sessions worked under supervision in ophthalmology clinics. Methods of accreditation for optometric participation in extended role services are varied. CONCLUSIONS: While optometrists working within the UK HES continue to undertake the traditional clinical roles of refraction, clinically necessary contact lenses, and low vision rehabilitation, it is clear that these professionals now undertake a wide range of extended clinical roles, with a transformed scope of practice now incorporating diverse roles traditionally undertaken by medical practitioners.

Joint Management of Cataract Surgery by Ophthalmologists and Optometrists.

PURPOSE: To estimate the rate and geographic variation of cataract surgery that is managed jointly by ophthalmologists and optometrists in aging Americans. DESIGN: Database study. PARTICIPANTS: United States fee-for-service (FFS) Medicare Part B beneficiaries and their providers. METHODS: Medicare Provider Utilization and Payment Data furnished by the Centers for Medicare and Medicaid were used to identify cataract surgery claims among FFS Medicare Part B beneficiaries in all 50 states and the District of Columbia in 2012 and 2013. Payments and joint management rates of cataract surgery by ophthalmologists and optometrists were calculated for each United States state. Geographic variations were evaluated by using the extremal quotient and coefficient of variation (CV). MAIN OUTCOME MEASURES: Medicare allowed payments for cataract surgery (Current Procedural Terminology codes 66982 and 66984) and number of unique FFS Medicare Part B beneficiaries undergoing cataract surgery. RESULTS: The overall national rate of joint management of cataract surgery by ophthalmologists and optometrists among FFS Medicare Part B beneficiaries was 10.9% (range by state, 0%-75%) in 2012 and 11.1% (range by state, 0%-63%) in 2013. In 2013, the mean extremal quotient was 67 and the CV was 82.2, demonstrating very high variation in joint management between states. The Medicare allowed payment to optometrists in the joint management of cataract surgery was 2.1% of the total Medicare allowed payments for cataract surgery codes in 2012 and 2013. Twenty percent and 24% of all Medicare-participating optometrists submitted 10 or more Medicare claims in the joint management of cataract surgery in 2012 and 2013, respectively. CONCLUSIONS: The overall rate of joint management of cataract surgery by ophthalmologists and optometrists among Medicare beneficiaries was 10.9% in 2012 and 11.1% in 2013. Very high geographic variation was documented, with joint management rates ranging from 0% to 63% across states in 2013.

Low-vision service provision by optometrists: a Canadian nationwide survey.

PURPOSE: To document the degree to which Canadian optometrists are involved in the provision of low-vision (LV) care and their referral patterns. To investigate the barriers to providing optometric low-vision services (LVS). METHODS: Practicing optometrists across Canada were randomly sampled and invited to participate in a questionnaire that included questions on personal profile, primary practice profile, levels of LV care offered, patterns of referral, and barriers to provision of LV care. Questions included a combination of multiple choice and open-ended formats, and included hypothetical cases. RESULTS: A total of 459 optometrists responded (response rate, 24.8%). Optometrists estimated that 1% (range, 0 to 100%) of their patients were LV patients yet also estimated that 10% of their patients had acuity equal to or worse than 20/40. Thirty-five percent of respondents indicated that their primary practice offered LV care, 75.6% would manage a patient with minimum disability and simple goals themselves, whereas 10.7% would manage a patient with more than minimal visual disability who needed more specialized LV devices (e.g., telescopes, electronic aids, and custom-designed microscopes); 84.3% of optometrists would assess for basic magnification and lighting in a hypothetical patient with early age-related macular degeneration, whereas 15% would undertake full LV rehabilitation in advanced age-related macular degeneration. Optometrists commonly referred to CNIB (formerly the Canadian National Institute for the Blind), yet only 10.7% of respondents almost always received a written report after referral. Those who would not undertake LV assessment stated that they lacked the knowledge, equipment, or experience; that LV assessment is too time consuming; and that the cost is too prohibitive. CONCLUSIONS: This is the first comprehensive study of LVS provision by optometrists in Canada. In order for optometrists to become more involved in LVS, there is a need for more LV education, provincial health coverage of optometric LVS, and better collaboration communication between LV providers.

The geographic distribution of eye care providers in the United States: Implications for a national strategy to improve vision health.

OBJECTIVE: To describe the patterns of local eye care provider availability in the US. METHODS: Data from 2011 on the number of ophthalmologists and optometrists in each of the 3143 counties in the US were drawn from the Area Health Resources File. Population-weighted quartiles of the county-level number of ophthalmologists per capita and the county-level number of optometrists per capita were defined. Descriptive statistics were calculated and a cross tabulation of quartiles of ophthalmologist availability and quartiles of optometrist availability was conducted for all the counties in the US and for the set of counties in each region of the US. RESULTS: 24.0% of US counties had no ophthalmologists or optometrists. 60.7% of counties in the US were in one of the lower two quartiles of both ophthalmologist availability and optometrist availability, and 24.1% of counties were in one of the lower two quartiles of ophthalmologist availability but in one of the upper two quartiles of optometrist availability. CONCLUSIONS: Public health interventions that are effective in a context of limited local eye care provider availability or that are able to leverage optometrist availability effectively in areas with limited ophthalmologist availability could be of widespread use in the US.