Table 1.
Primary Analysis, n= 12,755 | Sensitivity Analysis excluding those with diabetes, cataracts or and glaucoma during the preceding 12 months, n= 10,836 | Sensitivity Analysis excluding those with established patient codes, n=10,453 | Sensitivity Analysis allowing 6 months prior through 18 months after first prescription fill, n= 12,755 | |
---|---|---|---|---|
Recommended Retinal Examinations*, % | 4,148 (32.5) | 3,387 (31.3) | 1,846 (17.7) | 5,680 (44.5) |
Humphrey Visual Field Test and Other Additional Optional Examinations†, % | 3,093 (24.3) | 2,478 (22.9) | 1,764 (16.9) | 4,096 (32.1) |
> 1 of above examinations, % | 5,099 (40.0) | 4,154 (38.3) | 2,797 (26.8) | 6,665 (52.3) |
Recommended dilated retinal examinations per American Academy of Ophthalmology guidelines 2002 and American College of Rheumatology 2009.
Optional eye exams include visual field exams (Humphrey tests), fundus photography, fluorescein angiography, electroretinogram (ERG), electro-oculogram (EOG), extended color vision examination, and spectral domain optimal coherence tomography (SD-OCT). Definitions of these examinations based on Current Procedural Terminology (CPT) and Healthcare Common Procedure Coding System (HCPCS) Codes found in Supplementary Table 1.