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Research ArticleOriginal Research

Accuracy of Screening for Diabetic Retinopathy by Family Physicians

James M. Gill, David M. Cole, Harry M. Lebowitz and James J. Diamond
The Annals of Family Medicine May 2004, 2 (3) 218-220; DOI: https://doi.org/10.1370/afm.67
James M. Gill
MD, MPH
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David M. Cole
EpD
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Harry M. Lebowitz
MD
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James J. Diamond
PhD
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  • Agree with limited practicality of routine retinopathy screening
    James M Gill
    Published on: 22 February 2016
  • Ophthalmoscopic technique
    Eugene C Corbett, Jr., MD
    Published on: 09 August 2004
  • Intervention in our non-adherent patients that may help save their sight
    Richelle J. Koopman
    Published on: 10 June 2004
  • Is this practical for everyday practice use?
    Lawrence M. Markman, M.D.
    Published on: 05 June 2004
  • Eye exams important but often overlooked
    Katrina E Donahue
    Published on: 26 May 2004
  • Published on: (22 February 2016)
    Page navigation anchor for Agree with limited practicality of routine retinopathy screening
    Agree with limited practicality of routine retinopathy screening
    • James M Gill, Wilmington, USA

    I agree with Dr. Markman that it is probably impractical to routinely use the nonmydriatic scope to screen diabetic patients for retinopathy in primary care. I agree that the complex management required for diabetic patients and lack of additional reimbursement for additional procedures are barriers to routine use. However, while it may not be practical for routine use, it may still be useful for selected patients. For...

    Show More

    I agree with Dr. Markman that it is probably impractical to routinely use the nonmydriatic scope to screen diabetic patients for retinopathy in primary care. I agree that the complex management required for diabetic patients and lack of additional reimbursement for additional procedures are barriers to routine use. However, while it may not be practical for routine use, it may still be useful for selected patients. For example, those who have not seen an eye doctor in many years despite your referrals, or those who have eye complaints. In those cases, the nonmydratic scope is an additional tool that is more accurate than routine direct ophthalmoscopy without dilation but faster and more convenient for the patient than dilation.

    Competing interests:   None declared

    Show Less
    Competing Interests: None declared.
  • Published on: (9 August 2004)
    Page navigation anchor for Ophthalmoscopic technique
    Ophthalmoscopic technique
    • Eugene C Corbett, Jr., MD, USA

    It is refreshing to see an article which directs attention to the skill and importance of observing the retina by the primary care physician. Indeed, ophthalmoscopic technique is an important skill and one which requires training and practice.

    I want to call attention to the authors' assertion that certain retinal fields "are usually not visible using a standard direct ophthalmoscope without dilation". To the c...

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    It is refreshing to see an article which directs attention to the skill and importance of observing the retina by the primary care physician. Indeed, ophthalmoscopic technique is an important skill and one which requires training and practice.

    I want to call attention to the authors' assertion that certain retinal fields "are usually not visible using a standard direct ophthalmoscope without dilation". To the contrary, it is certainly within the realm of liklihood that a physician can visualize the retina up to 3 or 4 disc diameters from the center of the optic disc with the standard Helmholtz-designed scope without pupillary dilation. We regularly teach this to our clerkship students in an ophthalmoscopic technique workshop, and the large majority are successful in gaining this degree of retinal inspection. We have also discovered that first year medical students are also capable of performing this same degree of retinal inspection. The use of the newer PanOptic scope improves the ease of observing diabetic lesions. But the standard scope also offers great opportunity for visualizing retinal lesions by any physician, specialized or not.

    Competing interests:   None declared

    Show Less
    Competing Interests: None declared.
  • Published on: (10 June 2004)
    Page navigation anchor for Intervention in our non-adherent patients that may help save their sight
    Intervention in our non-adherent patients that may help save their sight
    • Richelle J. Koopman, Charleston, SC, USA

    Dr. Gill and colleagues address the important issue of screening for diabetic retinopathy. The prevalence of diagnosed diabetes in 1999-2000 was 5.9%, with undiagnosed diabetes representing and additional 2.4% (Cowie, 2003). Past work has estimated that the prevalence of retinopathy at the time of diagnosis of diabetes is 20% (Harris, 1992). As the authors have referenced, screening for diabetic retinopathy with a dila...

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    Dr. Gill and colleagues address the important issue of screening for diabetic retinopathy. The prevalence of diagnosed diabetes in 1999-2000 was 5.9%, with undiagnosed diabetes representing and additional 2.4% (Cowie, 2003). Past work has estimated that the prevalence of retinopathy at the time of diagnosis of diabetes is 20% (Harris, 1992). As the authors have referenced, screening for diabetic retinopathy with a dilated retinal exam by an ophthalmologist is recommended yearly for people with diabetes. Furthermore, interventions for early diabetic retinopathy can save vision in our patients with diabetes. However, in the 1990’s, only 63.3% of people with diabetes received annual dilated retinal screening (Saadine, et al, 2002). Additionally, the National Committee for Quality Assurance’s (NCQA) Diabetes Physician Recognition Program, designed to recognize excellence in diabetes care, requires that only 60% of the candidate’s self-selected adult panel have had an eye examination in the past year as a mark of distinction for diabetes care providers (http://www.ncqa.org/dprp/).

    The cost of a Welch Allyn PanOptic ophthalmoscope head from online retailers is about $450 vs. $150-200 for a conventional ophthalmoscope head. For the roughly 40% of our patients who are not making it to their yearly dilated eye exam visits, this may be a small investment. We’d also have to invest a little time in training, and a little more time at the visits for these patients, but that time could pay off for our patient’s vision. Additionally, I would hypothesize that the same barriers that prevent these patients from attending their recommended eye exams may also be barriers that lead to poor adherence, poor diabetes control, and poor blood pressure control, making these patients the patients most in need of our attention to their eyes.

    From a methodological perspective, it may have been more helpful for readers if the family physician use of the panoptic scope had been compared to the true gold standard, the ophthalmologist’s dilated retinal exam, rather than an “intermediate” gold standard, the ophthalmologist’s exam using the panoptic scope. This may be an area for a future investigation. Nevertheless, Dr. Gill and his coauthors have emphasized an opportunity for primary care doctors to take a greater role in the care of the eye in their patients with diabetes, especially those who do not get to the ophthamologist for their yearly exam.

    References:

    Cowie CC, Rust KF, Byrd-Holt D, Eberhardt MS, Saydah S, Geiss LS, Engelgau MM, Ford ES, Gregg EW. Prevalence of diabetes and impaired fasting glucose in adults---United States, 1999-2000. MMWR 2003;52:833- 837.

    Harris MI, Klein R, Welborn TA, Kniman MW. Onset of NIDDM occurs at least 4-7 years before clinical diagnosis. Diabetes Care 1992;15:815-819.

    Saadine JB, Engelgau MM, Beckles GL, Gregg EW, Thompson TJ, Narayan KM. A diabetes report card for the United States: quality of care in the 1990’s. Ann Int Med 2002;136:565-574.

    Competing interests:   None declared

    Show Less
    Competing Interests: None declared.
  • Published on: (5 June 2004)
    Page navigation anchor for Is this practical for everyday practice use?
    Is this practical for everyday practice use?
    • Lawrence M. Markman, M.D., Wilmington, Delaware

    This study illustrates that family physicians with varied numbers of years of practice experience can be trained in a reasonably short period of time to use a new diagnostic technique with a good degree of accuracy. As a participant in this study, I found the use of the pan-optic ophthalmoscope according to the above mentioned decision rules required a short learning curve. New diagnostic techniques and new instruments...

    Show More

    This study illustrates that family physicians with varied numbers of years of practice experience can be trained in a reasonably short period of time to use a new diagnostic technique with a good degree of accuracy. As a participant in this study, I found the use of the pan-optic ophthalmoscope according to the above mentioned decision rules required a short learning curve. New diagnostic techniques and new instruments can be exciting to family physicians who are several years past their residency training.

    The management of diabetic patients has become increasingly complex with the rising number of parameters that need to be monitored and addressed. Is there enough time available in the routine clinical encounter to incorporate another examination technique? In my experience, an examination of the optic fundi with the pan-optic scope similar to those done in this study requires an additional five minutes of time in an encounter already crowded with other requirements. There is no existing mechanism to claim any increase in reimbursement for this increase in clinical work.

    My limited clinical time is used more efficiently by having my staff inquire about eye examinations and remind all diabetic patients to see their ophthalmologist yearly.

    Competing interests:   None declared

    Show Less
    Competing Interests: None declared.
  • Published on: (26 May 2004)
    Page navigation anchor for Eye exams important but often overlooked
    Eye exams important but often overlooked
    • Katrina E Donahue, Chapel Hill , USA

    Gill JM and colleagues address an often overlooked part of the physical exam in patients with diabetes. In ‘Accuracy of Screening for Diabetic Retinopathy by Family Physicians’, Gill JM et. al. demonstrate that family physicians can screen for diabetic retinopathy with a sensitivity of 87% and specificity of 57% using a new generation ophthalmoscope. Though there is limited evidence to define the frequency of eye exam...

    Show More

    Gill JM and colleagues address an often overlooked part of the physical exam in patients with diabetes. In ‘Accuracy of Screening for Diabetic Retinopathy by Family Physicians’, Gill JM et. al. demonstrate that family physicians can screen for diabetic retinopathy with a sensitivity of 87% and specificity of 57% using a new generation ophthalmoscope. Though there is limited evidence to define the frequency of eye exams, current guidelines from the American Diabetes Association recommend annual screening (1). However, only an estimated 64% of persons with diabetes report having an annual eye exam (2). As the prevalence of diabetes increases, more patients are at risk for missing their eye exams and falling through the cracks. Given these less than ideal rates of ophthalmology screening, this type of ophthalmoscope may allow for better screening between ophthalmology visits. Future studies should also consider the cost of new technology and training in addition to replication in a larger population.

    1. Fong DS, Cavallerano JD, Aiello L, et.al. Retinopathy in Diabetes. Diabetes Care. 2004;27: S84-S87.

    2. Age-Adjusted Rates of Annual Dilated-Eye Exam, Daily Self- Monitoring of Blood Glucose, Foot Exam in the Last Year, and Doctor Visit for Diabetes in the Last Year per 100 Adults with Diabetes, United States, 1994-2002. http://www.cdc.gov/diabetes/statistics/preventive/FigXData.htm

    Competing interests:   None declared

    Show Less
    Competing Interests: None declared.
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The Annals of Family Medicine: 2 (3)
The Annals of Family Medicine: 2 (3)
Vol. 2, Issue 3
1 May 2004
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Accuracy of Screening for Diabetic Retinopathy by Family Physicians
James M. Gill, David M. Cole, Harry M. Lebowitz, James J. Diamond
The Annals of Family Medicine May 2004, 2 (3) 218-220; DOI: 10.1370/afm.67

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Accuracy of Screening for Diabetic Retinopathy by Family Physicians
James M. Gill, David M. Cole, Harry M. Lebowitz, James J. Diamond
The Annals of Family Medicine May 2004, 2 (3) 218-220; DOI: 10.1370/afm.67
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