A new technique for fixating the capsular bag in patients with ectopia lentis is presented. In this technique, the capsulorhexis is performed using a femtosecond laser, followed by the insertion of a standard capsular tension ring to redistribute capsular forces. The nucleus is hydroprolapsed into the anterior chamber and nuclear disassembly is performed above the iris plane to reduce zonular stress. Finally, a 5-0 polypropylene monofilament is used to fixate a capsular tension segment and subluxated capsular bag. This novel double-flanged method, achieved with cautery, does not require direct suturing of the monofilament on the sclera. This article describes the use of this new technique in 3 eyes, 2 in patients with Marfan syndrome and 1 in a patient with microspherophakia.

Alternative ORA parameters are better for differentiating grades I and II keratoconus from normal corneas than the four parameters originally available for ophthalmologists (corneal hysteresis, Goldmann-correlated intraocular pressure, corneal-compensated intraocular pressure, and corneal resistance factor). Although the ORA did not achieve 100% accuracy, the discrimination between these two groups was optimized by combining all parameters.

Purpose: To develop a novel, sutureless, single-piece, nonfoldable intraocular lens (IOL) intrascleral fixation technique based on the existing Malbran IOL scleral fixation and Yamane double-needle techniques. Methods: The novel method uses a 5.0 polypropylene suture and a bipolar cautery to create 2 flanges in the eyelets of the IOL and 2 flanges outside to insert inside the scleral tunnel and thus fixate the IOL. Results: This technique had been applied in 4 patients with aphakia after phacoemulsification complications. The mean preoperative and postoperative corrected distance visual acuities were 0.45 ± 0.17 and 0.67 ± 0.27 (Snellen decimal units), respectively. Conclusions: The 4-flanged technique improves and simplifies the existing single-piece, nonfoldable IOL intrascleral fixation techniques.

ICRS implantation led to statistically significant changes in both anterior and posterior corneal surfaces. However, correlation between visual outcomes and tomographic parameters was poor. [J Refract Surg. 2017;33(2):110-115.].

The biostatistics has gained significant importance in recent years, being one of the mainstays of current scientific research. It has a series of concepts and rules that must be understood to carry out or analyze an article. In this review we will discuss some of main tools utilized in works of interest in ophthalmology, its applications and limitations.

The current study showed that the use of computational models could lead to more accurate results and contribute to better surgical decision-making to improve the clinical outcomes in patients with keratoconus implanted with ICRS. [J Refract Surg. 2018;34(8):547-550.].

Precis: The current study showed that glaucomatous eyes from patients with central visual field defects presented less negative disc-fovea angle compared with patients with peripheral defects. Purpose: The purpose of this study was to investigate the relationship between disc-fovea angle and visual field defect location in patients with glaucoma. Materials and Methods: This was a cross-sectional study including glaucoma patients divided into isolated central and isolated peripheral scotoma groups. The main outcome measure was disc-fovea angle measurement between groups. Secondary outcomes included disc-fovea distance, vertical disc diameter, and fovea vertical deviation. Results: We included 50 glaucoma patients (50 eyes; 27 with central scotoma and 23 with peripheral scotoma). Mean deviation from visual fields was −3.05±1.67 and −2.95±1.49 dB (P=0.829) (central and peripheral scotoma groups, respectively). We found that eyes in the central group had lower values of disc-fovea angle (−5.85±2.67 vs. −7.97±2.26 degrees, P=0.004), shorter disc-fovea distance (4.38±0.70 vs. 4.98±0.78 mm, P=0.006), and shorter fovea vertical deviation (−0.43±0.19 vs. −0.68±0.22 mm, P<0.001) compared with eyes in the peripheral group. Conclusions: This study showed an association between disc-fovea angle and central visual field defects in patients with glaucoma. Our findings suggest that eyes with a less negative disc-fovea angle should undergo a more careful investigation of the central visual field, even at early stages of the disease.

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