Dr. Choi is an associate in vitreoretinal surgery and uveitis at Texas Retina Associates with offices in the Dallas-Fort Worth metroplex

Dr. Thomas is an associate in vitreoretinal surgery and uveitis at Tennessee Retina, with offices in central Tennessee and southern Kentucky.

DISCLOSURE: Drs. Choi and Thomas have no relevant financial relationships to disclose. 

Management of noninfectious uveitis is an already daunting task for most of us. Doing so in the setting of pregnancy can cause even more apprehension as we have to consider avoiding harm not only to the mother but also to the fetus. 

The course of noninfectious uveitis during pregnancy hasn’t been well established. However, general trends have been described. Numerous therapeutic options exist for controlling ocular inflammation in these patients. I’ll discuss what we know about the course of uveitis during pregnancy as well as management options and treatment approaches. 


Autoimmune uveitis course 

Pregnancy is known to have an ameliorating effect on a variety of autoimmune diseases. However, prospective, randomized control studies of pregnancy in uveitis have been lacking. Because uveitis is a rare condition, studies in pregnancy are limited by the number of eligible patients. 

Nonetheless, a number of case reports and retrospective studies have described the course of uveitis in pregnancy.1–5 Based on these reports, uveitis appears to worsen in the first trimester, but tends to be less active later on. Subsequently, an increase in ocular inflammation occurs in the postpartum period. 

A case series that included pregnant patients with Vogt-Koyanagi-Harada-associated uveitis, Behçet’s disease-associated uveitis and idiopathic uveitis reported an increased probability of having a uveitis flare in the first four months of pregnancy but a decreased probability later on.4 More than 50 percent of this cohort experienced a uveitic flare within six months of delivery. 

An Australian study reported similar results.1 It included pregnant patients with uveitis associated with idiopathic disease, Behçet’s disease, sarcoidosis, Fuchs heterochromic uveitis, multifocal chorioretinitis, HLA-B27 disease and juvenile idiopathic arthritis. The study found a lower rate of flares in the second trimester vs. the first, but found no statistically significant difference in the rate of flares between the second and third trimesters. In the postpartum period, uveitis activity tended to relapse.

A retrospective cohort study compared pregnant and nonpregnant patients with uveitis, matching them for demographics and anatomical location of uveitis.3 Most of these patients had idiopathic uveitis, but other diseases were uveitis associated with relapsing polychondritis, Behçet’s disease, juvenile idiopathic arthritis, ankylosing spondylitis and inflammatory bowel disease. The flare rate was significantly lower in pregnant women than in nonpregnant periods or in nonpregnant controls. Among pregnant patients, uveitis flares were most common in the first trimester. 

Based on the available studies, the consensus is that uveitis worsens during the first trimester of pregnancy, but then improves during the second and third trimesters. Increased rates of flare should be expected in the postpartum period. 


Treatment approaches and options


The choice of immunosuppressive agents to control noninfectious uveitis in pregnancy is limited by their potential for teratogenicity and adverse fetal outcome.2  The Table lists medications commonly used for autoimmune uveitis and the Food and Drug Administration pregnancy risk category for each. 


Corticosteroids are the first line of treatment to acutely control ocular inflammation. The most common topical formulations used in uveitis are prednisolone and difluprednate (Durezol, Novartis). The periocular selection is triamcinolone, which is injected into the sub-Tenon’s space. Intravitreal choices include preservative-free triamcinolone, dexamethasone implant (Ozurdex, AbbVie) and long-acting fluocinolone acetonide implant (Yutiq, EyePoint Pharamaceuticals). Retisert (Bausch + Lomb), a surgically placed sustained-release fluocinolone implant, is another local option. 

Short-acting local delivery options are the ideal initial approach to noninfectious uveitis during pregnancy because their systemic absorption is minimal, thus reducing the risk of potential harm to the mother and fetus. 


Alternatives to local delivery

If local delivery results in inadequate control of ocular inflammation, then systemic corticosteroids are the next option. The FDA places most systemic corticosteroids in category C (adverse fetal effects reported in animal reproduction studies but well-controlled human studies are lacking). However, prednisone and prednisolone, the most commonly used systemic steroids in uveitis, are included in category B (animal reproduction studies have failed to demonstrate a risk to the fetus, and there are no adequate and well-controlled studies in pregnant women). 

When using systemic steroids in the first trimester, discuss the potential risk of cleft lip and palate in infants.6,7 Systemic steroids can generally be used during pregnancy if medically warranted. However, they should be used in low doses and limit their use in the first trimester. 

Immunomodulatory agents can be used for long-term control of noninfectious ocular inflammatory diseases. However, some of these medications are known teratogens and others lack sufficient safety data. Of the anti-metabolites, methotrexate and mycophenolate mofetil have been shown to be teratogenic and should be avoided.8–10 

Azathioprine is an FDA category D medication (investigational studies have documented risk to the human fetus, but potential benefits may warrant treatment in pregnant women despite these risks). Azathioprine hasn’t been definitively shown to increase miscarriages or structural defects, but it should be used only in low doses for sight-threatening uveitis.10–13

The use of biologic response modifiers has grown rapidly in the treatment of uveitis. The most common are the tumor necrosis factor (TNF) inhibitors adalimumab (Humira, AbbVie) and infliximab (Remicade, Janssen Biotech), both of which are in FDA category B. No conclusive evidence has demonstrated either of them has antagonistic effects to the embryo or increase the risk of fetal death.14–16

Studies have shown the passage of TNF-inhibitors across the placenta appears to be the highest in the third trimester,17,18 leading to the recommendation that these agents should be stopped at the beginning of the third trimester to prevent potential immunosuppression in the infant.19 

Certolizumab pegol (Cimzia, UCB) is a TNF-inhibitor that has minimal to no placental transfer from mother to fetus, and has been shown to be an effective option to control intraocular inflammation.20 

The calcineurin inhibitors cyclosporine and tacrolimus have been used less frequently in uveitis since more efficacious medications such as TNF-inhibitors have emerged. The evidence is inconclusive that calcineurin inhibitors may increase the risk of prematurity and have unfavorable fetal side effects. They should only be used in pregnancy if medically warranted.21,22 Alkylating agents such as cyclophosphamide and chlorambucil are known teratogens and should be avoided during pregnancy.23–25 


Bottom line

During pregnancy, ocular inflammation tends to increase in the first trimester and decrease in the second and third trimesters. An increase in uveitis flares should be expected postpartum. Local steroid delivery should be the first approach to controlling inflammation. Systemic steroids and immunomodulatory therapy may be used in cases refractory to local steroid administration. When choosing therapy, work closely with the obstetrician and patient to evaluate the risks and benefits for the mother and child. RS




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