Purpose To study the effects of Ologen collagen matrix on the outcomes of the Ahmed glaucoma valve implant. Study Design Retrospective case-control multicenter study, conducted at four centers, comparing the 6-month outcomes of Ahmed valve implants with or without Ologen. Participants The study included 125 eyes in a 4:1 pairing (25 patients with Ologen matched to 100 patients without Ologen). Intervention Ologen was placed over the Ahmed plate in the study group. Success was defined as an intraocular pressure (IOP) ≤ 21 mmHg either with no medication (complete success) or regardless of medications (qualified success). Other outcomes included IOP variation, eye drop use, and surgical complications. Results Overall, the IOP decreased from 30.72 ± 9.08 to 16.14 ± 4.79 mmHg (p=0.0001). Of the 125 eyes, 26 achieved complete success and 94 achieved qualified success. There was no difference in complete success between the groups (p=0.12); however, there was a difference in qualified success (p=0.01), with better results in the no-Ologen group (80% vs 56%). There were no differences in the decrease in medications (p=0.06), as well as the incidence of complications (p=0.69). Although the need for postoperative surgical reintervention was higher in the no-Ologen group (13% vs 4%), the difference was not significant (p=0.2). Conclusion The reductions in IOP and number of medications were similar in both groups after 6 months, with similar complication rates. The qualified success rate was lower in the Ologen group, but further studies are needed to clarify the role of Ologen in Ahmed valve implants.

Introduction: Posterior lenticonus is a rare ectasia of the posterior capsule of the lens and has a prevalence of 1-4/100,000 and is associated with crystalline opacity in 14% of unilateral cases and 9% of bilateral cases. Depending on the degree of opacity and visual impairment, there is a risk of developing amblyopia but the effect on vision is extremely variable. We report two different treatment approaches to the disease. Case Report: The first case is a 10 months male patient with Down syndrome attended for evaluation of cataract with good fixation and no strabismus. Inicially a non surgical treatment was chosen but later he developed an agressive behavior and a posterior lenticone associated with posterior polar cataract was observed, which lead to the decision of a surgical treatment. The second case is a 7 years old patient with history of low visual acuity and posterior polar cataract in the left eye associated with posterior lenticonus discretely displaced superiorly. He was treated with tropicamide and oclusion of the right eye for thirty days. Discussion: The two cases shows how is it possible to manage posterior lenticonus with surgical ou clinical treatments. There is a tendency for patients who underwent cataract surgery to have a better visual acuity improvement compared with patients who did not have surgery, however this data was not statistically significant. Conclusion: The ophthalmologist should be able to recognise this finding during examn and decide wich treatment, surgical or clinical, will bring the best visual outcome for his pacients.

Minimally invasive glaucoma surgeries are surgical treatment alternatives for glaucoma aimed at reducing intraocular pressure with a better safety profile compared to traditional trabeculectomy. However, in spite of less invasive techniques, complications may develop in any surgical procedure. To the best of our knowledge, this is the first case report of anterior uveitis following combined treatment with cataract surgery and iStent inject® which addresses the management of postoperative inflammation. RESUMOAs cirurgias minimamente invasivas para glaucoma consistem em uma opção de tratamento cirúrgico para glaucoma, a qual promove redução da pressão intraocular com melhor perfil de segurança do que a trabeculectomia. Todavia, complicações são inerentes à realização de procedimentos cirúrgicos, apesar do uso de técnicas menos invasivas. Este é o primeiro relato que apresenta um caso de uveíte anterior após cirurgia combinada de catarata e iStent inject®, além de orientações quanto ao manejo do quadro inflamatório.