Stefania Harris applied for disability insurance benefits and supplemental security benefits under Titles II and XVI of the Social Security Act. The Commissioner of the Social Security Administration denied Harris’s application. An administrative law judge (“ALJ”) determined that Harris’s history of diabetes did not meet the criteria for presumptive disability under 20 C.F.R. Part 404, Subpart P, Appendix 1, and that Harris was “not disabled” within the meaning of the Social Security Act during the period for which she sought benefits. The Social Security Appeals Council denied review, and the district court 1 affirmed the decision of the Commissioner. We affirm.
I.
We review
de novo
the district court’s decision to uphold the denial of social security benefits.
Pettit v. Apfel,
II.
The Commissioner follows a five-step process to determine whether a claimant is disabled.
See generally
20 C.F.R. § 404.1520;
Bowen v. Yuckert,
Harris argues the ALJ incorrectly found at step three that she did not meet the criteria for “nephrotic syndrome,” as described at 20 C.F.R. Part 404, Subpart P, Appendix 1, § 6.06B. To meet the requirements of section 6.06B, the medical evidence must show, among other things, “nephrotic syndrome,” with “significant anasarca,” that has persisted “for at least three months despite prescribed therapy.” Id. Anasarca is a generalized infiltration of edema fluid into subcutaneous connective tissue. Stedman’s Medical Dictionary 70 (27th ed.2000). Edema is the accumulation of an excessive amount of watery fluid in cells or intercellular tissues. Id. at 566-67. In addition, the medical record must include the results of laboratory tests documenting proteinuria of 10 grams per 24 hours or greater. 20 C.F.R. Part 404, Subpart P, Appendix 1, § 6.06B.
*929 Harris has not pointed to evidence showing that she satisfies the specific medical criteria for this listing. In support of her claim, Harris offers only her diagnoses of diabetic nephropathy and renal insufficiency. These diagnoses are not by themselves sufficient to demonstrate that Harris’s condition meets the requisite medical criteria. We agree with the district court that there is no evidence that Harris suffered from significant anasarca. The only evidence of record regarding the presence of edema indicates that Harris had “rare” or “trace” edema in her extremities. (Administrative R. 225, 297). On other occasions, examinations found that Harris had no edema at all. (R. 219, 226, 266, 267, 297). We further note that results of tests conducted at the University of Kansas Medical Center in May 2001 show that Harris did not meet the criterion regarding proteinuria listed at Section 6.06B. (R. 267). Accordingly, there is substantial evidence to support the ALJ’s determination that Harris did not meet the requirements for presumptive disability.
III.
At the fourth step of the five-step process, the ALJ was required to assess the claimant’s residual functional capacity,
see Young v. Apfel,
Harris contends that the ALJ erred at step four in determining her RFC, because the ALJ failed to consider properly her vision loss, headaches, and fatigue. She also objects to the ALJ’s finding at step five that she was able to work in the national economy in such positions as a cashier, duplicating machine operator, or laundry worker/folder. Harris complains that the determination of her ability to work was based on a flawed hypothetical that the ALJ promulgated to a vocational expert.
We conclude that the RFC determined by the ALJ was supported by substantial evidence. The ALJ did include Harris’s vision loss in his findings, noting that Harris’s best corrected visual acuity was 20/100 in her right eye, and 20/50 in her left eye. The ALJ found that because of her vision, Harris should avoid driving.
The ALJ’s analysis of Harris’s vision is supported by the record. A consultative ophthalmologist reported that Harris’s left eye had “excellent vision,” with “no active diabetic retinopathy,” and that Harris’s eyesight would not result in work-related limitations on sitting, standing, walking, lifting, carrying, handling objects, hearing, speaking, and traveling. (R. 230). Harris acknowledged in testimony that she could see clearly with glasses, and that she reads a newspaper. (R. 350-52). Harris cites no evidence from treating physicians that would require greater limitations due to eyesight, and we are not persuaded that the ALJ’s conclusion is unsupported by substantial evidence.
The ALJ also considered Harris’s complaints of headache and fatigue, but found that there was “no substantiation for any debilitation from headaches,” and “no basis for significant fatigue as long as her blood glucose is reasonably well controlled.” We conclude that the ALJ’s analysis considered a variety of factors consistent with
*930
Polaski v. Heckler,
The record provides adequate support for the ALJ’s determination to reject Harris’s subjective complaint of debilitating headaches and fatigue. A consulting physician who examined Harris in 1997 concluded that while Harris reported chronic headaches, “she has not been limited by them over the years and I would suspect that these are not limiting either.” (R. 226). Indeed, Harris testified that she worked for an average of 24 hours per week during 2001. (R. 347, 356).
See Browning v. Sullivan,
The history of Harris’s treatment for headaches also supported the ALJ’s credibility determination. The ALJ was presented with evidence that in recent years, Harris took only over-the-counter medication for her headaches.
See Riggins,
In her testimony before the ALJ, Harris based her claim of fatigue largely on severe headaches. (R. 257). Given our conclusion that the ALJ properly rejected the claim of debilitating headaches, it follows that the record also supports the ALJ’s finding that Harris did not suffer from significant fatigue as a result of such headaches. Harris claims it is obvious that fatigue arising from her condition of pro-teinuria will result in the need to lie down for several hours each day. We think whether there is a “need” to lie down is a medical question that requires medical evidence. The record does not contain any evidence from a physician that Harris’s medical condition requires her to lie down for hours each day, and it does contain evidence that seems inconsistent with Harris’s subjective claims. We cannot fault the ALJ for relying on testimony of the independent medical advisor that the record did not support a finding of significant fatigue.
[7] Harris attacks the ALJ’s reliance on the independent medical advisor who testified at the hearing. She asserts the advisor testifies frequently in disability'benefit proceedings, that he usually opines that the claimant is not disabled, and that his opinion has been rejected by courts in other cases. (The Commissioner notes that courts have affirmed other decisions in which this same advisor was a testifying expert.) We believe the credibility of any such medical advisor should be evaluated on a case-by-case basis, depending on the
*931
evidence of record in the proceeding. It is well settled that an ALJ may consider the opinion of an independent medical advisor as one factor in determining the nature and severity of a claimant’s impairment.
See, e.g., Freeman v. Apfel,
IV.
Finally, Harris argues that the ALJ erroneously concluded at step five that she is capable of performing work that exists in significant numbers within the regional and national economies. She contends that the hypothetical situation presented to the vocational expert at the hearing did not accurately reflect the limitations on her ability to work. 2
We conclude that the hypothetical accurately reflects Harris’s residual functional capacity as found by the ALJ. The question included limitations on Harris’s vision, stating that Harris “should not have a clerical type job where she had to read extensively or do any type of fine manipulation, because of her visual acuity or lack thereof ....” We perceive no error in the ALJ’s failure to include Harris’s subjective complaints of headaches and fatigue in the hypothetical, because we have upheld the ALJ’s findings on those issues.
See Depover,
Having employed a hypothetical that was supported by substantial evidence in the record as a whole, the ALJ was entitled to rely upon the opinion of the vocational expert that there are a significant number of jobs in the economy that Harris could perform. Weiler v. Apfel, 179 F.3d *932 1107, 1111 (8th Cir.1999). Accordingly, the judgment of the district court is affirmed.
Notes
. The Honorable Gary A. Fenner, United States District Judge for the Western District of Missouri.
. Our cases are inconsistent on where the burden of persuasion lies during step five of the Commissioner's process.
Compare Young v. Apfel,
