ObjectiveTo describe a case of bilateral acute retinal necrosis syndrome (ARNS) in a 5-year-old boy.MethodA retrospective, interventional case is described in one child attending the pediatric ophthalmology section, complaining of sudden bilateral red eye and haze-impaired vision. A standardized ophthalmologic examination and specific serological probes supported the diagnosis of severe bilateral ARNS in an immunocompetent child.ResultsThe reduced visual acuity (<20/400), the ocular fundus signs (perivasculitis, thrombosis and retinal edema) and the positive immunoglobulin M anti-Epstein Barr virus serology, lead us to the ARNS definitive diagnosis. Antiviral therapy (Acyclovir; Zovirax®), ciclopentolate dilating eye drops, and antiplatelet treatment (acetil salicylic acid; Aspirin®) were administered until recovering the final visual acuity (20/40).ConclusionsThe ARNS is an ocular disease with poor prognosis, which in turns may display better course when determining the etiopathogenic virus and selecting the appropriate and precocious therapy.

This retrospective study evaluated the results in 90 eyes that had a minuspower anterior chamber intraocular lens implanted to correct high myopia. Preoperative myopia ranged from -7.00 to -24.00 D. Postoperative spherical equivalent was -0.50 D; 80.5% of eyes were within 1.00 D of emmetropia. Two years postoperatively, no cataract formation, retinal detachment, glaucoma, or significant endothelial damage had occurred. We conclude that minus-power lenses can rapidly, safely, and predictably correct high myopia in phakic patients.

If a worm is identified in DUSN, focal laser treatment of the located area is the treatment of choice, regardless of whether fundus changes suggest late stages of the disease. However, the eye of the patient should be thoroughly examined to rule out the presence of more than one worm that might cause the failure of therapy.

SUMMARY One hundred and seventy one eyes with intraocular lenses were studied to compare the predictive accuracy of the Fyodorov and Van der Heijde theoretical formulae of the SandersRetzlaff-Kraff (SRK) regression formula. The SRK regression formula was the most accurate. Our personal calculations of the A constants of this formula are given for several types of implants and manufacturers.