This appeal primarily concerns the right to appointed counsel and the right to a jury trial of an indigent prisoner who seeks relief for the alleged deliberate indifference of prison officials to his serious medical problems. The district court denied the prisoner’s request for appointed counsel, as well as his motions for a jury trial, appointment of an independent medical expert, and enforcement of a subpoena. After trial, the district court found for the defendants. We find that the denials of the motions for appointed counsel and for a jury trial were abuses of discretion.
I
On July 10,1978, Billy Merritt, a prisoner at the Indiana State Prison, injured his left eye. He complained of blurred vision and was seen, two days later, by Dr. Saylors, a physician on the prison staff. Saylors could not determine whether there was any damage to the eye, but he felt the complaint was serious enough to act on it promptly. He referred Merritt to the prison consultant ophthalmologist, Dr. Houck. Saylors indicated in Merritt’s file that the matter was “urgent.”
Houck, examining Merritt the next day, found that Merritt had a vitreous hemorrhage in the left eye. About a month after the accident, Houck arranged for Merritt to be tested for sickle cell disease. The test was positive. Houck thought there might be a relationship between the sickle cell disease and the hemorrhaging in the left eye, but he did not know anything about the treatment of sickle cell disease. Houck examined Merritt three times during the next three months, but he did not prescribe any treatment or make any referrals. Saylors described Houck’s handling Merritt’s medical condition as “unusual.” Five months after the injury, in December 1978, Houck referred Merritt to a consulting surgeon for consideration of a vitrectomy, an operation which could remove fluid from Merritt’s left eye.
Six weeks later, and more than six months after the accident, Merritt was sent to an Indianapolis hospital for treatment of his left eye. The surgeons at the hospital did not perform a vitrectomy on the left eye. Instead, they performed an argon laser photocoagulation on Merritt’s right eye, even though his vision in his right eye was 20/25 and he had never complained about his right eye. Following his trip to the hospital, Merritt’s vision in his right eye deteriorated, and he became functionally blind in both eyes.
Merritt was examined by Houck about once a month during the next year. Merritt returned to the hospital once and also went to an Indianapolis clinic for further tests and evaluations. No treatment or operation was prescribed by Houck or the *763physicians at the hospital or clinic. During this period Merritt, however, was examined by another prison staff physician. This physician noted that Merritt’s left eye was still hemorrhaging. Although this doctor referred Merritt to the prison’s assistant administrator of medical services for treatment, including surgery, no other operation was performed.
II
On July 7, 1980 Merritt filed his complaint seeking declaratory and injunctive relief and compensatory and punitive damages for violation of his eighth amendment right.1 His motion to proceed in forma pauperis pursuant to 28 U.S.C. § 1915 (1976) was granted. The defendants answered by generally denying Merritt’s substantive allegations and raising as affirmative defenses that they acted in good faith and that Merritt’s blindness was caused by sickle cell disease.
On August 13, 1980 Merritt moved for appointment of counsel. On October 30, 1980 the district court had not ruled on this motion, and Merritt moved for appointment of two prison inmates as lay assistants, expressly stating that the lay assistants did not take the place of appointed counsel. This motion was granted. On December 15, fifteen days before trial, Merritt’s motion for appointed counsel was denied. In its order, the court ruled: “The appointment of counsel in a civil action is a matter within the discretion of the district court. It is a privilege and not a right.”
On August 26, 1980, nineteen days after the defendants had answered the complaint, Merritt made a demand for jury trial pursuant to Fed.R.Civ.P. 38(b). The demand was stricken as untimely on October 1. Merritt moved for reconsideration explaining that he was blind, and that, because he had to rely on a lay advocate to present motions to the court, his failure to make a timely jury demand was excusable. The motion for reconsideration was denied the next day.
Trial was held on December 30, 1980. Merritt presented evidence through nine witnesses, three of whom were the defendants. The court entered judgment for the defendants at the close of trial, based upon oral findings of fact. Merritt appealed to this court and counsel was appointed to represent him here.2
Ill
Indigent civil litigants have no constitutional or statutory right to be represented by a lawyer. Nevertheless, particularly when rights of a constitutional dimension are at stake, a poor person’s access to the federal courts must not be turned into an exercise in futility. See Bounds v. Smith, 430 U.S. 817, 821-24, 97 S.Ct. 1491, 1494-1496, 52 L.Ed.2d 72 (1977); Haines v. Kerner, 404 U.S. 519, 520, 92 S.Ct. 594, 595, 30 L.Ed.2d 652 (1972). This principle of meaningful access is reflected in many decisions by the United States Supreme Court and by this court. Congress, in 28 U.S.C. § 1915 (1976), has indicated that the federal courts must be a judicial forum truly available to the rich and poor alike.
In some civil cases meaningful access requires representation by a lawyer. In Powell v. Alabama, 287 U.S. 45, 68-69, 53 S.Ct. 55, 63-64, 77 L.Ed. 158 (1932), Justice Sutherland observed that:
The right to be heard would be, in many cases, of little avail if it did not comprehend the right to be heard by counsel. Even the intelligent and educated layman has small and sometimes no skill in the science of law. If charged with crime, he is incapable, generally, of determining for himself whether the indictment is good or bad. He is unfamiliar with the rules of evidence. Left without the aid of counsel *764he may be put on trial without a proper charge, and convicted upon incompetent evidence, or evidence irrelevant to the issue or otherwise inadmissible. He lacks both the skill and knowledge adequately to prepare his defense, even though he [sic] have a perfect one. He requires the guiding hand of counsel at every step in the proceedings against him. Without it, though he be not guilty, he faces the danger of conviction because he does not know how to establish his innocence. If that be true of men of intelligence, how much more is it of the ignorant and illiterate, or those of feeble intellect.
The logic which propelled the Supreme Court to move from Powell (right to counsel in capital prosecutions), to Gideon v. Wainwright, 372 U.S. 335, 83 S.Ct. 792, 9 L.Ed.2d 799 (1963) (right to counsel in all felony prosecutions), to Argersinger v. Hamlin, 407 U.S. 25, 92 S.Ct. 2006, 32 L.Ed.2d 530 (1972) (right to counsel in cases in which the defendant receives a prison sentence), is no less compelling when applied to these cases.
Even when there is no absolute right to counsel, see, e.g., Scott v. Illinois, 440 U.S. 367, 369, 99 S.Ct. 1158, 1159, 59 L.Ed.2d 383 (1979) (no right to counsel when potential prison sentence is not actually imposed), the Court has made it clear that the circumstances of a particular case may make the presence of counsel necessary. In Gagnon v. Scarpelli, 411 U.S. 778, 787-91, 93 S.Ct. 1756, 1762-1764, 36 L.Ed.2d 656 (1973), for example, the Court found no absolute right to counsel in parole revocation proceedings. Nevertheless, a flexible case-by-case approach to the question of appointed counsel sensitive to the ability of the parolee to present his case was constitutionally necessary. Id.
One important reason for representation by counsel is ensuring the efficacy and accuracy of the factfinding process. See Scarpelli, id. Quite often the factual and legal issues in a civil case are more complex than in a criminal case. See Note, The Indigent’s Right to Counsel in Civil Cases, 76 Yale L.J. 545, 548 (1967). This often will be true in cases presenting constitutional questions. Indeed, surviving a critical motion to dismiss under Fed.R.Civ.P. 12(b)(6) may well depend upon the ability to perform legal research and present sophisticated legal arguments in such doctrinally complex areas as prisoner medical rights or free speech. These are skills which a layman often may not have and in which a lawyer receives professional training.3
IV
It is within this context that this circuit has fashioned standards for the exercise of discretion in considering whether to appoint counsel for indigent civil litigants in the federal courts under 28 U.S.C. § 1915(d) (1976).4 In Maclin v. Freake, 650 F.2d 885 (1981) (per curiam), we set forth and applied five nonexclusive factors which a district court should consider in ruling upon such a request. See also McKeever v. Israel, 689 F.2d 1315 (7th Cir.1982). These factors are: (1) whether the merits of the indigent’s claim are colorable; (2) the ability of the indigent plaintiff to investigate crucial facts; (3) whether the nature of the evidence indicates that the truth will more likely be exposed where both sides are represented by counsel; (4) the capability of the indigent litigant to present the case; and (5) the complexity of the legal issues raised by the complaint. Maclin, 650 F.2d at 887-89.
Analysis of these five factors indicates that the district court abused its discretion when it denied Merritt’s request for appointed counsel. First, Merritt has *765presented a colorable claim for relief. One of the chief questions in this case can be phrased in many ways: (1) whether the defendants acted with deliberate indifference to Merritt’s serious medical needs, (2) whether defendants’ conduct was an inadvertent failure to provide adequate medical care or a “wanton infliction of unnecessary pain,” or (3) whether defendants acted in conscious disregard of Merritt’s medical needs. Estelle v. Gamble, 429 U.S. 97, 105-06, 97 S.Ct. 285, 291-292, 50 L.Ed.2d 251 (1976); Wood v. Worachek, 618 F.2d 1225, 1232-33 (7th Cir.1980); Green v. Carlson, 581 F.2d 669, 675-76 (7th Cir.1978); aff’d, 446 U.S. 14, 100 S.Ct. 1468, 64 L.Ed.2d 15 (1980).
Merritt alleged that he received no treatment for six months after the injury to his eye, that the prison officials interfered with his ability to receive proper treatment, and that the defendants’ conduct resulted in his blindness. If Merritt had been able to prove these allegations, he would have shown a violation of his eighth amendment rights, and he would have been entitled to relief. In Duncan v. Duckworth, 644 F.2d 653 (7th Cir.1981), we considered a claim similar to Merritt’s. Duncan had complained of severe pain from an injury, and although he was seen repeatedly by prison doctors, no surgery or treatment was provided. The Duncan court ruled that despite the fact that the pro se prisoner’s complaint failed to use the key legal phrases, the prisoner had presented a colorable claim and dismissal by the district court for failure to state a claim was improper. Id. at 654-55.
Second, Merritt is unable to investigate crucial facts. The crucial facts here concern both the conduct of the defendants, the cause of Merritt’s blindness, and- the standards of medical practice in such areas as the treatment of sickle cell disease and blindness. Consultation with outside medical specialists to develop evidence concerning diagnosis, causation, treatment, and prognosis is obviously beyond the capacity of this blind, indigent, and imprisoned litigant. See Maclin, supra, 650 F.2d at 889.
Third, the nature of the evidence is such that the truth will more likely be exposed when both sides are represented by counsel. When properly presented the evidence in this case will consist of quite complex and probably contradictory evidence from medical experts, the plaintiff, and the defendants. Testing their opinions and their credibility will require the skills of a trained advocate to aid the factfinder in the job of sifting and weighing the evidence.
Fourth, neither Merritt nor his lay assistants could present this case properly. The defendants here do not contend that Merritt himself could present his case. How could Merritt read the defendants’ documents indicating the results of their examinations of him? Rather, defendants argue that Merritt’s two prisoner-lay assistants were competent. The lay assistants, however, were also handicapped by their inability to obtain essential medical evidence from doctors outside of the prison. Depositions as a means of obtaining evidence from such witnesses were avenues completely foreclosed to Merritt and his lay assistants. This was especially critical because the only physicians other than the defendants who examined Merritt were beyond the subpoena power of the court. See Fed.R.Civ.P. 32(a)(3). Moreover, the trial transcript reveals how well meaning but, nevertheless, incompetent the lay assistants were. Cross-examinations of critical witnesses were often muddled and ambiguous. It is obvious that the lay assistants had little understanding of the hearsay rule or of how to present a closing argument. In some cases these skills will be less critical. But here, where complex medical evidence is at the heart of a case, these skills were essential.
Fifth, the legal questions raised by Merritt’s complaint, the cause of his blindness and whether defendants acted with deliberate indifference to his injury, are too complex for lay representation. These questions depend upon the subtle appreciation of legal causation and of the duties imposed upon state prison officials by the eighth and fourteenth amendments, an appreciation which neither Merritt nor his lay assistants possessed.
*766In addition to satisfying the Maelin standards on Merritt’s most straightforward claim, a careful review of the transcript below reveals a second possible claim, one perhaps more substantial. The transcript reveals that the prison medical authorities were aware of their deficiencies in treating sickle cell disease before Merritt’s injury. Recommendations for staff training and equipment had been made to improve the capability of prison medical authorities to treat black inmates suffering sickle cell disease. We, of course, cannot say whether the failure of prison medical officials to act upon these recommendations comprises, in part, a violation of Merritt’s eighth amendment rights. But we are sure that presentation of such a claim, in its novelty and complexity would require the assistance of counsel.
V
We have not answered explicitly the question of whether it is proper and wise for the court of appeals to remand this matter to the district court for the exercise of its discretion. See McKeever, supra, at 1323 (Posner, J., dissenting); Ray v. Robinson, 640 F.2d 474, 478 (3d Cir.1981); Heidelberg v. Hammer, 577 F.2d 429, 431 (7th Cir.1978); United States v. McQuade, 579 F.2d 1180, 1181 (9th Cir.1978). The alternative course, followed in Maelin and McKeever, is to reach the merits of this prisoner’s claim for appointed counsel.
We conclude that under the circumstances of this case it is inefficient and unjust to remand the matter to the district court. The facts here are not in dispute and the issue is fully briefed. The only step remaining is the application of the Maelin legal standards to these facts,5 a task for which our expertise is as great as the district court’s. Conceptually this task is similar to considering summary judgment. As demonstrated in Part IV, supra, failure to appoint counsel would so clearly be an abuse of discretion that deferral to the district court is unnecessary. The delay and multiple litigation of this issue would not serve the interests of the litigants or of the federal courts. See 28 U.S.C. § 2106 (1976); Grosso v. United States, 390 U.S. 62, 71-72, 88 S.Ct. 709, 715, 19 L.Ed.2d 906 (1968); Independent Bankers Ass’n of America v. Heimann, 613 F.2d 1164, 1167 (D.C.Cir.1979), cert. denied, 449 U.S. 823, 101 S.Ct. 84, 66 L.Ed.2d 26 (1980); Ferrero v. United States, 603 F.2d 510, 515 (5th Cir.1979); In re Hronek, 563 F.2d 296, 298 (6th Cir.1977).
VI
The next question is whether the district court abused its discretion when it denied Merritt’s jury demand. The defendants argue that denial was proper because Merritt’s motion invoked Fed.R.Civ.P. 38(b).6 Because the rule’s ten-day limitation period had passed (by nine days). Merritt had failed to fulfill the rule’s mandatory requirements.
Haines v. Kerner, 404 U.S. 519, 92 S.Ct. 594, 30 L.Ed.2d 652 (1972), and the importance of the right to a jury provision of the seventh amendment indicate that it was an abuse of discretion to deny Merritt’s motion. Under Haines pro se pleadings are to be liberally construed. Merritt’s motion should have been treated under Fed.R. Civ.P. 39(b).7 Rule 39(b) grants wide dis*767cretion to the federal courts in considering untimely jury demands. That discretion must be exercised in the context of the interest asserted. A jury trial is not a minor feature of our judicial system. The right of a litigant to have his fellow citizens hear and weigh the evidence is a hallmark of our jurisprudential system. Swofford v. B. & W., Inc., 336 F.2d 406, 409 (5th Cir.1964), cert. denied, 379 U.S. 962, 85 S.Ct. 653, 13 L.Ed.2d 557 (1965). See generally Parklane Hosiery Co. v. Shore, 439 U.S. 322, 339-344, 99 S.Ct. 645, 655-658, 58 L.Ed.2d 552 (Rehnquist, J., dissenting) (history of constitutional right to jury trial).
In the absence of strong and compelling reasons to the contrary, untimely jury demands should be granted. Swofford, supra, 336 F.2d at 409. The exercise of discretion requires an analysis of the facts of the particular case. As one commentator has noted, “[t]he court ought to approach each application under Rule 39(b) with an open mind and an eye to the factual situation in that particular ease.” 9 C. Wright & A. Miller, Federal Practice & Procedure § 2334, at 116 (1971). The mere fact, however, that plaintiffs motion for a jury trial was “too late” is neither a strong nor a compelling reason to deny the fundamental right to a jury trial. Hensley v. Ellenburg, 57 F.R.D. 212 (E.D.Tenn.1972). Untimely jury demands have been granted in a variety of circumstances. See Ford v. Breier, 71 F.R.D. 195 (E.D.Wis.1976) (motion for jury trial granted where it was brought by new counsel without delay and was unopposed); United States v. Mesna, 11 F.R.D. 86 (D.Minn.1950) (motion for jury trial granted where it was only two and one-half months late and opponent would suffer no prejudice); Arnold v. Trans-American Freight Lines, 1 F.R.D. 380 (W.D.Mich.1940) (motion for jury trial granted where failure to make jury demand was the result of confusion among counsel).
There are no strong or compelling reasons for denying Merritt’s motion for a jury trial. The defendants rely upon cases which hold that mere inadvertence of counsel is not enough to support a rule 39(b) motion. Bush v. Allstate Ins. Co., 425 F.2d 393, 395-96 (5th Cir.), cert. granted, 400 U.S. 833, 91 S.Ct. 64, 27 L.Ed.2d 64 (1970); Noonan v. Cunard Ins. Steamship Co., 375 F.2d 69, 70 (2d Cir.1967); Todd v. Lutz, 64 F.R.D. 150, 152 (W.D.Pa.1974); A. & W. Oil Co. v. Texaco, Inc., 51 F.R.D. 283, 286 (W.D.Ark.1970). But this is not a case of mere inadvertence of counsel. This motion was made by a blind pro se litigant who indicated from his first pleadings, through his requests for counsel, that he did not feel competent to represent himself in court.
Defendants’ alternative argument is that the motion was properly denied because of court congestion. In Wilson v. Corning Glass Works, 195 F.2d 825, 827 (9th Cir.1952), defendants’ authority for this proposition, the plaintiff was represented by counsel, the bench trial date was already set before the motion was made, and the district court was severely overworked and understaffed. Wilson is inapposite. Here a pro se litigant’s motion was made more than one month prior to the assignment of a trial date. (Both the denial of the August 26 motion for a jury trial and the trial date were set on October 1.) The mere fact that it was more convenient for the district court to hear Merritt’s claim at a bench trial during its previously scheduled Christmas term at the prison is not the sort of strong and compelling reasons which rule 39(b) requires. Regardless of location, bench trials are always more convenient. Under defendants’ reasoning rule 39(b) would be a nullity.
VII
Merritt raises two additional objections to the proceedings below. The first concerns the district court’s refusal to order a medical examination by an independent physician, pursuant to Fed.R.Civ.P. 35(a).8 The *768primary thrust of the claim appears to concern the payment of the medical experts’ fees. Merritt recognizes that the claim is novel. It is unwise to reach this issue now. At his new trial, Merritt will be represented by counsel who has a variety of options unavailable to Merritt, including depositions and contingency fee or pro bono services by physicians. Only when these more traditional avenues have been pursued would it become necessary to consider under what circumstances a court can or should appoint a medical expert for an indigent litigant.
The last objection concerns the district court’s refusal to enforce a subpoena. The district judge denied the motion for enforcement because Merritt could not pay the witness fees. The question of whether and when the funds' for witness fees must be advanced to a federal civil indigent litigant is not a simple one. 28 U.S.C. § 1915(c) (1977)9 may provide a basis. See Morrow v. Igleburger, 584 F.2d 767, 772 n. 7 (6th Cir.1978), cert. denied, 439 U.S. 1118, 99 S.Ct. 1027, 59 L.Ed.2d 78 (1979); Marks v. Calendine, 80 F.R.D. 24, 27 (N.D.W.Va.1978). The record and the briefs are insufficient for us to reach this matter. Again, we trust that appointed counsel will be able to find an alternative solution to this problem or create a record and present arguments indicating the bases and sources for an advancement of witness fees and why the subpoena should be enforced.
The judgment of the district court is hereby reversed. This cause is remanded for a new trial in which a jury and appointed counsel are provided to the plaintiff-appellant. Circuit Rule 18 will apply.
. The defendants were: Gordon Faulkner, Commissioner of the Indiana Department of Corrections; Jack Duckworth, Warden of Indiana State Prison (“ISP”); Ronald Freake, ISP Hospital Administrator; Dr. John Saylors, ISP Chief General Physician; Dr. O.D. Reed, ISP Optometrist; Dr. R.S. Houck, ISP Ophthalmological Consultant; and Dr. Nghia Mai, ISP General Physician.
. The court wishes to thank attorney Joel M. Heilman for his assistance.
. The problem is compounded by the inequality which results when the defendant, most often the state, is represented by counsel and the indigent civil litigant is not. An underlying assumption of the adversarial system is that both parties will have roughly equal legal resources. This assumption is destroyed when only one side is represented. See Bounds v. Smith, 430 U.S. 817, 826, 97 S.Ct. 1491, 1497, 52 L.Ed.2d 72 (1977).
. Section 1915(d) provides in relevant part: “The court may request an attorney to represent any such person unable to employ counsel ... ”
. This distinction may explain the difference between this circuit’s treatment of section 1915 appointment of counsel claims in Maelin and McKeever and appellate treatment in McQuade and Ray, supra. The McQuade and Ray courts did not formulate standards for the exercise of discretion under section 1915.
. Fed.R.Civ.P. 38(b) provides, in relevant part:
Any party may demand a trial by jury of any issue triable of right by a jury by serving upon the other parties a demand therefor in writing at any time after the commencement of the action and not later than 10 days after the service of the last pleading directed to such issue.
. Fed.R.Civ.P. 39(b) provides:
Issues not demanded for trial by jury as provided in Rule 38 shall be tried by the Court; but, notwithstanding the failure of a party to demand a jury in an action in which such a demand might have been made of right, the Court in its discretion upon motion may order a trial by a jury of any or all ÍSSU6S.
See also Fed.R.Civ.P. 6(b).
. Fed.R.Civ.P. 35(a) provides in pertinent part: When the mental or physical condition ... of a party, or of a person in the custody or legal control of a party, is in controversy, the court in which the action is pending may order the party to submit to a physical or mental ex*768amination by a physician or to produce for examination the person in his custody or legal control.
. Section 1915(c) reads in pertinent part: “Witnesses shall attend as in other cases, and the same remedies shall be available as are provided for by law in other cases.”