Sandbox ID Eye

Conjunctivitis

• Conjunctivitis, acute

• Bacterial conjunctivitis

• Empiric antimicrobial therapy,

• Preferred regimen (1): Gentamicin ointment qid for 1 week OR Gentamicin solution 1-2 drops qid for 1 week OR Tobramycin ointment tid for 1 week
• Preferred regimen (2): Besifloxacin solution 1 drop 3 times for 1 week OR Ciprofloxacin ointment tid for 1 week OR Ciprofloxacin solution 1-2 drops topical qid for 1 week OR Gatifloxacin solution tid for 1 week OR Levofloxacin solution 1-2 drops qid for 1 week OR Moxifloxacin solution tid for 1 week OR Ofloxacin solution 1-2 drops qid for 1 week
• Preferred regimen (3): Azithromycin ointment bid for 2 days, then 1 drop qd for 5 days OR Erythromycin ointment qid for 1 week
• Preferred regimen (4): Sulfacetamide ointment qid and at bedtime for 1 week OR Sulfacetamide solution 1-2 drops q2-3h for 1 week
• Preferred regimen (5): Trimethoprim/Polymyxin B solution 1 or 2 drops qid for 1 week

Note: Topical steroids are not recommended for bacterial conjunctivitis.

• Pathogen-directed antimicrobial therapy

• Chlamydia trachomatis

• Inclusion conjunctivitis

• Preferred regimen: Azithromycin 1 g PO qd
• Alternative regimen: Doxycycline 100 mg PO bid for 7 days

• Conjunctivitis secondary to trachoma

• Preferred regimen: Azithromycin 20 mg/kg PO for one single dose
• Alternative regimen (1): Tetracycline OR Erythromycin ointment for 6 weeks
• Alternative regimen (2): Tetracycline PO for 3 weeks OR Erythromycin PO for 3 weeks

• Neisseria gonorrhoeae

• Hyperacute bacterial conjunctivitis, adult

• Preferred regimen: Ceftriaxone 1 g IM once

Note: Dual therapy to cover Chlamydia is indicated.

• Staphylococcus aureus, methicillin-resistant (MRSA)

• Preferred regimen: Vancomycin ointment 1% qid

• Herpetic conjunctivitis

• Herpes simplex virus

• Preferred regimen: Acyclovir 1 drop topical 9 times per day OR Acyclovir 400 mg PO 5 times per day for 7-10 days OR Valacyclovir 500 mg PO tid for 7-10 days

Note: Topical steroids should be avoided.

• Varicella zoster virus

• Preferred regimen: Acyclovir 800 mg PO 5 times per day for 7-10 days OR Famciclovir 500 mg PO tid for 7-10 days OR Valacyclovir 1000 mg PO tid for 7-10 days

Note: Treatment usually consists of a combination of oral antivirals and topical steroids.

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Blepharitis

• Empiric therapy

• Blepharitis

• Preferred regimen: Bacitracin OR Erythromycin topical/systemic once or more times daily or at bedtime for few weeks AND topical anti-inflammatory drugs such as Corticosteroids, Cyclosporine
• Alternative regimen: Metronidazole gel OR Tobramycin/Dexamethasone ophthalmic suspension OR Azithromycin sustained release system.

Note (1): cure is usually not possible with blepharitis.Eyelid hygiene provide symptomatic relief for those with both anterior and posterior blepharitis.

Note (2): Cyclosporine topical drops 0.05% may be helpful in some patients with posterior blepharitis.

• Specific considerations

• Mebomian gland dysfunction :

• Preferred regimen: Doxycycline OR Minocycline 100 mg daily tapered to Doxycycline OR Minocycline 40-50mg daily after clinical improvement is noted ususally 2-6 weeks
• Alternative regimen: Erythromycin 250-500 mg PO qd OR Azithromycin 250-500mg 1-3 times a week or 1g per week for 3 weeks.

Note (1): Tetracyclines are contraindicated in pregnancy, nursing women and those with history of hypersenstivity to Tetracycline

Note (2): Patients with contact-lens-associated giant papillary conjunctivitis have an increased frequency of mebomian gland dysfunction.

• Dry eye

• Preferred regimen: Cyclosporin topical and Omega-3 fatty acids two 1000 mg capsules tid per day

Note: Diet modification is helpful.

• Deramtological conditions with seborrhiec blepharitis and mebomian gland dysfunction

• Preferred regimen: Azithromycin oral with Tacrolimus 0.1% topical
• Alternative regimen: Tetracycline oral

Note: In some patients Azithromycin oral may lead to abnormalities in electrical activity of heart with the potential to create serious irregularities in heart rhythm

• Demodicosis

Preferred regimen: Metronidazole gel to eyelid skin

Alternative regimen: Ivermectin oral in recalcitrant Demodex bleharitis

• Ocular Rosacea

• Preferred regimen: Tetracyclines topical

Note (1): In patients with chronic blepharitis that does not respond to therapy, the possibility of carcinoma should be considered, particularly if associated with a loss of eyelashes.

Note (2): Isotretinoin used to treat cystic acne is associated with significant increase in colonization of conjunctiva with Staphylococcus aureus blepharitis and disruption of trear function. Discontinuation of isotretinoin leads to improvement in most cases.