Eyeworld

58 | EYEWORLD | AUGUST 2019 C ORNEA PRESENTATION SPOTLIGHT Contact information Maychuk: maychuk@mail.ru by Stefanie Petrou Binder, MD EyeWorld Contributing Writer suggests that the yearly number of cases of ker- atitis from Acanthamoeba is about 400 (popula- tion 146 million). The average time of develop- ment is 3 months and it is bilateral in 10% of cases. Studies have shown no association with 1-day lens use, orthokeratology, or appropriate cleaning or wearing procedure. The treatment regimen includes the instillation of lens clean- ing solutions, topical use of voriconazole and fluconazole, as well as aggressive treatment with phototherapeutic keratectomy. Lens use is asso- ciated with Pseudomonas infections, which tend to develop corneal ulcers, as the causative agent is often not immediately recognized. Routinely the infections are treated with chloramphenicol and ofloxacin four times per day for 3 weeks, which is being changed by the new Russians protocols and standards. M any different organisms can cause infectious keratitis, and it is of paramount importance for ophthalmologists to recognize the telltale signs in the cornea and follow procedure according- ly. During a keynote lecture at the 23rd European Society of Cataract and Refrac- tive Surgeons Winter Meeting, Russian specialist Dmitry Maychuk, MD, reviewed the incidence and etiologies of infectious keratitis in Russia, discussing treatment protocols followed by Russian physicians. Bacterial keratitis Russian studies show the etiology of infectious keratitis as related to a number of origins. Acan- thamoeba and Pseudomonas are implicated among bacterial infections of the cornea. Evidence Infectious keratitis in Russia Ulcer caused by Pseudomonas aeruginosa, third day from the onset of the disease; untreated condition Severe fibrosis after adenoviral conjunctivitis Pseudomembrane in a case of adenoviral conjunctivitis, eighth day of the disease Removal of pseudomembrane from the upper eyelid in case of acute adenoviral conjunctivitis Source (all): Dmitry Maychuk, MD About the doctor Dmitry Maychuk, MD Head of the Therapeutic Ophthalmology Department Fyodorov Eye Microsurgery Institution Moscow, Russia continued on page 60

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