Intraocular pressure fluctuations in patients implanted with an implantable collamer lens (ICL V4c). Three-month follow-up. / Fluctuaciones de presión intraocular en pacientes operados con implante de implantable collamer lens (ICL V4c). Seguimiento a 3 meses.

INTRODUCTION: Fluctuating elevated intraocular pressure (IOP) is one of the complications of an implantable collamer lens (ICL), and its alteration is a predictive factor for the development of glaucoma. MATERIAL AND METHODS: A prospective, cross-sectional analytic study was conducted on patients suitable for ICL implantation. Complete clinical and biometric work-ups were performed, as well as night-time IOP curve, in supine position, with 4 determinations, in order to assess fluctuation, considering abnormal with a value higher than 5 mmHg. Patients underwent surgery with conventional technique and three months after the work-ups were repeated, including a night-time IOP curve to assess any changes in IOP fluctuations. RESULTS: A total of 31 eyes of 16 patients were studied. Mean IOP fluctuation in the preoperative assessment was 3.35 ± 2 mmHg, whereas the postoperative mean was 3.0 ± 2.2 mmHg, with the difference not being statistically significant. Visual acuity and capacity, as well as spheric equivalent did show a statistically significant improvement. There were 6 cases of complications, which were related to a higher vault and a greater ICL size. There was no relationship between these findings and the angle grade, pigment, and the level of training of the surgeon. CONCLUSIONS: The effect of an ICL on IOP fluctuations, has been studied for the first time, which was found to be not statistically significant. As in previous publications, the procedure was safe and reproducible, adding the fact that the level of training of the surgeon is not a determining factor in these findings.

Femtophacovitrectomy. Case series and description of the technique. / Femtofacovitrectomía. Serie de casos y descripción de la técnica.

OBJECTIVE: The aim of this study was to assess the safety and surgical results of combined pars plana vitrectomy and femtosecond laser-assisted cataract surgery (femtophacovitrectomy). MATERIAL AND METHODS: A prospective, non-comparative case series was conducted by selecting patients with cataract and vitreoretinal pathology who underwent femtophacovitrectomy by a single surgeon at the Hospital Central Militar between June 2013 and February 2014. An evaluation was made of the preoperative characteristics, surgical indications, results, and postoperative complications, with a minimum follow-up of 3 months. RESULTS: The study included 35 eyes of 35 patients, of whom 20 (57.1%) were male. The mean age was 60.76±4.2 years. Diagnoses included vitreous haemorrhage (19 cases), macular hole (6 cases), epiretinal membrane (7), and tractional detachment (5 cases). The mean best corrected visual acuity was 1.3 LogMAR before surgery, and 0.5 LogMAR at 3-months follow-up (P<.05). No patient had visual loss. The intra-operative complication was miosis in 14.28%. In the early postoperative period (<1 month), all had subconjunctival haemorrhage, with moderate corneal oedema in 20% of cases, and only 2.85% (one case) ocular hypertension associated with use of intraocular gas. There were no cases of endophthalmitis. The mean follow-up was 13.3 months (10-16 months). CONCLUSIONS: The use of femtosecond laser in phacovitrectomy is a safe and effective alternative, with similar risk of complications in cases of macular pathology, tractional retinal detachment, and/or vitreous haemorrhage.

[Malyugin ring for intraoperative miosis in femtosecond laser phacovitrectomy]. / Anillo de Malyugin para miosis intraoperatoria en femtofacovitrectomía.

OBJECTIVE: To evaluate the usefulness of the Malyugin ring in poor pupil dilation during phacoemulsification assisted with femtosecond laser with 23 gauge pars plana vitrectomy. METHOD: A 57-year-old female with cataract and vitreous hemorrhage, and poor pupil dilation (5.5mm). The phacoemulsification assisted with femtosecond laser, using Malyugin ring after capsulorrhexis, followed by pars plana vitrectomy, and removing at the end without complications. RESULTS: A successfull intraoperative pupil dilation was achieved without complications, with a final BCVA of 20/40. CONCLUSIONS: The Malyugin ring is an effective alternative in cases with poor pupil dilation in femtophacovitrectomy, preserving the anatomical and functional integrity.