JCRS HIGHLIGHTS CHOSEN BY PROFESSOR THOMAS KOHNEN, EUROPEAN EDITOR, JCRS

VOL:43 ISSUE 2 MONTH: FEBRUARY 2017

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IOL POWER CALCULATIONS AFTER HYPEROPIC LASIK Investigators evaluated seven intraocular lens (IOL) calculation formulas in patients with previous hyperopic LASIK or excimer laser photorefractive keratectomy (PRK). Formulas included the adjusted Atlas 0-3, Masket, Modified Masket, Haigis-L, Shammas-PL, Barrett True-K, and Barrett True-K No-History. The Masket and Modified Masket were calculated using the single-K version of Holladay 1 and Hoffer Q formulas; the adjusted Atlas 0-3 was calculated using the double-K version of Holladay 1 and Hoffer Q. The study found no significant differences in the median absolute refractive prediction error or percentages of eyes within ±0.50D or ±1.00D of the predicted refraction between newer and older formulas or methods. The IOL mean prediction errors were comparable between the Holladay 1 and Hoffer Q calculations for all formulas except for a greater error for the double-K version of the Hoffer Q of the adjusted Atlas 0-3. E Hamill et al. JCRS, Intraocular lens power calculations in eyes with previous hyperopic laser in situ keratomileusis or photorefractive keratectomy, Vol. 43, No. 2, p189–194. IOLS AND THE CAPSULE What effect would different optic edge designs of acrylic IOLs have on posterior chamber opacification (PCO)? To address this question, researchers conducted a randomised controlled prospective study of 50 patients who received an AcrySof SA60AT IOL implanted in one eye and a Tecnis ZCB00 IOL implanted in the fellow eye. Both lenses are one-piece hydrophobic acrylic IOLs. The AcrySof IOL has a continuous square optic edge whereas the Tecnis IOL has an interrupted edge. At five-year follow-up there was no significant difference in the PCO rate between the two types of IOL. However, there were significant differences with respect to anterior capsule opacification (ACO) development and anterior capsule retraction between both IOLs. Significantly less ACO and capsule phimosis were observed with the Tecnis IOL. Glistenings were observed in all patients with the AcrySof IOL and in no patient with the Tecnis IOL. G Kahraman et al., JCRS, Intraindividual comparison of capsule behaviour of 2 hydrophobic acrylic intraocular lenses during a 5-year follow-up, Vol. 43, No. 2, p228–233. CME POST-CATARACT SURGERY Topical NSAIDs are beneficial in treating chronic cystoid macular oedema (CME) after cataract surgery, although CME may recur after cessation of treatment, concluded a comprehensive literature review. The authors report that it remains unclear which pharmacologic treatment is most effective in improving CDVA and retinal morphology. Noting that the evidence regarding the optimum treatment is of moderate-to-low quality, they call for large well-designed multicentre studies to investigate the optimum pharmacologic treatment of acute and chronic CME after cataract surgery. LHP Wielders et al., JCRS, Treatment of cystoid macular oedema after cataract surgery, Vol. 43, No. 2, p276–284.