Treatment of Conjunctivitis in Contact Lens Wearers

Initial Management

• The American Academy of Ophthalmology recommends immediately removing contact lenses and discontinuing wear until the cornea completely returns to normal in patients with conjunctivitis who wear contact lenses 1, 2, 3
• Consider the possibility of contact lens-related keratoconjunctivitis, which presents with punctate epithelial keratitis, pannus, neovascularization, inflammation, and edema due to limbal stem cell hypoxia 1, 2
• Rule out Acanthamoeba keratitis, which should be suspected if moderate or severe pain is present, especially with history of swimming or showering while wearing contacts 4, 5

Treatment Options

• For mild cases of contact lens-related conjunctivitis, the American Academy of Ophthalmology recommends a brief (1-2 weeks) course of topical corticosteroids 1, 2, 6
• Consider longer-term use of topical cyclosporine 0.05% to manage inflammation in patients with mild contact lens-related conjunctivitis 1, 2, 6

Follow-up Care

• At follow-up evaluation, review the contact lens fit, type, and care regimen, and consider recommending non-preserved lens care systems, daily disposable contact lenses, high DK/T ratio material lenses, and reduced contact lens wearing time 1, 2, 6

Important Precautions

• Patients should be instructed not to rinse contact lenses or cases with tap water, bottled water, or homemade saline, and to clean and replace contact lens cases at least every 3 months 4, 5
• Hydrogen peroxide systems may be superior to preserved disinfecting solutions in reducing pathogen binding, but require more complex care regimens 4, 5

Long-term Recommendations

• Consider alternatives to contact lenses (eyeglasses or refractive surgery) once the keratoconjunctivitis has resolved, and schedule regular eye examinations to monitor lens fit, ocular health, and reinforce proper lens care and hygiene 1, 2, 6
• Advise patients that overnight wear of contact lenses increases the risk of corneal infections fivefold compared to daily wear, and warn patients about the risks of wearing contact lenses while swimming, sitting in hot tubs, showering, or bathing 4, 5

Common Pitfalls to Avoid

• Failing to discontinue contact lens wear during treatment can lead to prolonged infection and complications, and resuming contact lens wear too early before complete resolution can lead to recurrence and chronic issues 1, 2

Treatment of Conjunctivitis in Contact Lens Wearers

Immediate Management

• The American Academy of Ophthalmology recommends removing contact lenses immediately upon presentation and instructing the patient not to wear them until complete resolution occurs, for all forms of conjunctivitis in contact lens wearers, regardless of suspected etiology 7, 8

Critical Red Flags Requiring Urgent Evaluation

• Unilateral presentation with pain is more concerning for infectious keratitis than bilateral allergic or viral conjunctivitis 9
• Moderate to severe pain suggests possible bacterial keratitis or Acanthamoeba keratitis, particularly if the patient has a history of swimming, showering, or hot tub use while wearing contacts 7, 10

Treatment Based on Severity

• All contact lens wearers with bacterial conjunctivitis require topical antibiotic therapy, unlike non-contact lens wearers where observation may be appropriate, due to the increased risk of bacterial keratitis 7, 10

Follow-Up Management

• The American Academy of Ophthalmology recommends comprehensively reviewing contact lens practices, including lens type, fit, and wearing schedule, cleaning and disinfection regimen, and water exposure habits, and considering specific modifications such as switching to daily disposable lenses, using preservative-free lens care systems, and reducing wearing time 7
• Strongly discourage overnight wear, as it increases corneal infection risk fivefold compared to daily wear, even with lenses approved for extended wear 7, 10
• Educate on water avoidance, including never swimming, showering, using hot tubs, or washing hair while wearing contact lenses, due to Acanthamoeba risk 7, 10
• Instruct on proper lens care, including never rinsing lenses or cases with tap water, bottled water, or homemade saline, replacing solution completely each time, replacing lens cases every 3 months minimum, and rubbing and rinsing lenses with fresh solution even if using "no-rub" solutions 7

Common Pitfalls to Avoid

• Failing to examine the cornea carefully with fluorescein staining can lead to missing keratitis, and treating all contact lens-related conjunctivitis as simple bacterial infection without considering keratitis 8
• Missing Acanthamoeba keratitis in patients with pain and water exposure history requires specialized treatment and can cause permanent vision loss 7, 10

Guideline Recommendations for Managing Contact Lens‑Related Keratoconjunctivitis

Diagnostic Indicators

• Punctate epithelial keratitis, pannus, neovascularization, corneal inflammation, and edema on slit‑lamp examination signify contact‑lens‑related keratoconjunctivitis caused by limbal stem‑cell hypoxia. – Ophthalmology Society (2024) 11

Anti‑Inflammatory Therapy

• For mild hypoxia‑induced keratoconjunctivitis, a short 1–2 week course of topical corticosteroid drops is recommended to diminish corneal inflammation. – Ophthalmology Society (2024) 11
• In cases of persistent inflammation after the acute phase, topical cyclosporine 0.05 % may be employed for longer‑term control. – Ophthalmology Society (2024) 11
• Whenever corticosteroids are prescribed, baseline intra‑ocular pressure measurement and periodic monitoring (including pupillary dilation) should be performed to detect steroid‑induced glaucoma or cataract formation. – Ophthalmology Society (2024) 11

Contact‑Lens Modification After Resolution

• If daily disposable lenses are not an option, refitting patients with silicone‑hydrogel lenses that have a high DK/T (oxygen‑permeability) ratio is advised to improve corneal oxygenation. – Ophthalmology Society (2024) 11
• Increasing the frequency of lens replacement or reducing the total daily wearing time helps lower the risk of recurrent hypoxic changes. – Ophthalmology Society (2024) 11
• Reducing overall contact‑lens wearing time (e.g., limiting wear to fewer hours per day) further decreases the likelihood of keratoconjunctival complications. – Ophthalmology Society (2024) 11

Alternative Vision Correction Options

• After complete resolution of keratoconjunctivitis, clinicians should discuss alternative vision correction methods—such as spectacles or refractive surgery—with the patient. – Ophthalmology Society (2024) 11

Patient‑Related Considerations

• Some patients may find it difficult to discontinue contact‑lens wear because the resulting punctate keratopathy can reduce visual acuity when corrected with glasses, highlighting the need for counseling and support. – Ophthalmology Society (2024) 11