Hemorragia supracoroidea diferida después de queratoplastia endotelial automatizada con pelado de la membrana de Descemet (DSAEK)

This study, a case series of 2 patients and a literature review, aims to describe the second and third known cases of delayed suprachoroidal hemorrhage after Descemet stripping automated endothelial keratoplasty (DSAEK). The suprachoroidal hemorrhage is defined as the presence of blood in the suprachoroidal space; final visual acuity is rarely greater than 0.1 (decimal scale). Both cases presented had known risk factors: high myopia, previous ocular surgeries, arterial hypertension, and being under anticoagulant therapy. The diagnosis of delayed suprachoroidal hemorrhage was made at the 24-hour follow-up visit, as they recalled a sudden and tremendous acute pain hours after surgery. Both cases were drained through a scleral approach.Delayed suprachoroidal hemorrhage is a rare but devastating consequence that can occur after DSAEK. Awareness of the most critical risk factors allows for early identification, which is of paramount importance for the prognosis of these patients.     

Queratoplastia endotelial de la membrana de Descemet y biomecánica corneal

ObjectiveTo study the behaviour of the biomechanical properties of the cornea in DMEK (Descemet membrane endothelial keratoplasty).MethodProspective longitudinal observational study. 21 pre and post-DMEK eyes. 3-month follow-up with the dynamic Scheimpflug Analyzer (Corvis ST, Oculus; Wetzlar, Germany). The following parameters were measured: IOPnc: non-corrected intraocular pressure (IOP), IOPb: IOP corrected by biomechanics, maximum deflection amplitude (DefA), CCT: central corneal pachymetry, flattening speed 1 and 2, peak distance, HC deformation amplitude: deformation amplitude in maximum concavity, integrated inverse concave radius, DAR 1 and 2: deformation amplitude at 1 mm and 2 mm from the corneal apex, respectively. ARTh: Ambrosial pachymetric ratio, SP1: stiffness parameter, CBI: Corvis Biomechanical index and the maximum inverse radius. Pre-operative and post-operative measurements were performed with a 3-month follow-up and compared with a paired sample t-test.ResultsThere was a significant decrease in the IOPnc of 1.54 ± 3 mmHg (p < 0.05), a significant increase in the post-surgical IOPb of 3.79 ± 3.18 mmHg (p < 0.001), a significant pachymetric decrease of 164.4 ± 91.35 μm (p < 0.001) after the intervention. All dynamic parameters of the Scheimpflug analyzer changed significantly after surgery (p < 0.05), except the ARTh and IWC variables.ConclusionsVariables indicate a decrease in corneal strength post-DMEK, with an increase in IOPb, at least the first 3 months after surgery. This finding is especially relevant in the follow-up of patients with coexisting glaucoma.     

Queratoplastia endotelial con pelado de la Descemet asistida con láser de excímero en el síndrome iridocorneoendotelial

Case reportA 42 year-old female diagnosed with essential iris atrophy complained of visual decrease in the right eye. Examination revealed moderate corneal oedema, folds in Descemet's membrane, polycoria, corectopia, and iris atrophy.Excimer laser assisted Descemet stripping endothelial keratoplasty was performed, with a good corneal transparency and a significant visual improvement being obtained.DiscussionThe results one year after the surgery, with visual acuity of 0.4, clear lens, pachymetry of 580 μm and cylinder of 0.5 D, with low endothelial cell loss, suggest that further studies are required to evaluate the efficacy of this technique in patients with iridocorneal endothelial syndrome.     

Permanencia de la membrana de Descemet y del endotelio receptor tras queratoplastia penetrante. A propósito de un caso clínico

A case is presented of a retained Descemet's membrane after penetrating keratoplasty, highlighting the importance of the anterior segment optical coherence tomography (OCT) in the diagnosis and treatment planning of keratoplasty complications.A review of literature is also presented.An 88 year-old man underwent penetrating keratoplasty for bullous keratopathy.A retained host Descemet's membrane was detected. The retained membrane went unnoticed until the visual acuity decreased. The ophthalmological examination showed the presence of an opalescent membrane located below the endothelium, and was identified as the Descemet membrane of the receptor. Nd:YAG laser membranotomy was performed after the diagnosis.To conclude, it is noted that the inadvertent retention of the host Descemet membrane is a rare complication in penetrating keratoplasty. The anterior segment OCT was used to determine the diagnosis, and Nd:YAG laser membranotomy is an indicated treatment in these cases.     

Manejo de la rotura de la membrana de Descemet secundaria a traumatismo por fórceps durante el parto

To describe the clinical signs and management of Descemet membrane (DM) detachment after forceps-related trauma during birth. A 2-day-old term infant presented with right eye corneal clouding and history of forceps assisted delivery. Ophthalmic assessment was consistent for corneal trauma and anterior segment optical coherence tomography (AS-OCT Visante®) revealed DM detachment. Prolonged topical treatment considerably reduced edema, but after four months of treatment superior DM detachment persisted, anterior chamber air injection at this point also failed to achieve apposition. Central visual axis remained partially spared in the months to follow, and intensive amblyopia treatment was indicated. Prolonged topical treatment may be helpful to reduce edema and risk of severe amblyopia in DM tears secondary to forceps traumatism at birth, but insufficient in cases of large DM detachment.     

Cirugía combinada de catarata y queratoplastia lamelar endotelial en el síndrome iridocórneo endotelial

The case is reported of a 59-year-old woman, who reported decreased visual acuity (VA) in the left eye (LE). On examination, a corrected VA of finger count/ 30 cm was observed in LE. Corneal oedema and folds in the Descemet's membrane were observed using the slit lamp. Anterior synechiae, iris atrophy, and corectopia were also found. Iridocorneal endothelial syndrome (ICE) was diagnosed. The treatment option was a combination of cataract surgery and automated endothelial keratoplasty with Descemet's membrane dissection (DSAEK). There were no complications during the operation, with a successful anatomical and functional recovery, with a VA of 0,8 being observed after one year. This result supports the efficacy of DSAEK in ICE syndrome, encouraging more studies to be carried out that should also support its efficacy in this syndrome.     

Macrovaso coroideo y metamorfopsia persistente después de cirugía de membrana epirretiniana

We report the case of a 59-year-old man with decreased visual acuity and metamorphopsia in both eyes in the context of bilateral epiretinal membrane (ERM) who underwent retinovitreal surgery (chromovitrectomy plus peeling of internal limiting membrane). He recovered visual acuity in his left eye. However, the visual results of his right eye were not satisfactory, with persistence of metamorphopsia in that eye. The multimodal imaging study that included colour and red filter retinographies, enhanced depth imaging optical coherence tomography (EDI-OCT), fluorescein angiography (FA), indocyanine green angiography (ICGA), OCT angiography (OCTA) and OCT en face, were useful to diagnose a choroidal macrovessel. This ran from the fovea to the temporal macula. EDI-OCT revealed that the choroidal macrovessel generated a foveal deformation of both the ellipsoid zone (EZ) and the retinal pigment epithelium (RPE). This paper discusses whether structural changes in the fovea generated by the choroidal macrovessel are related to persistent metamorfopsia in the affected eye.     

Desprendimiento hemorrágico de la membrana de Descemet tras viscocanalostomía

IntroductionViscocanalostomy is an option in the surgical treatment of glaucoma. This non-penetrating technique favours aqueous drainage through the Schlemm channel while avoiding filtering blebs and their related pathologies. Complications associated to this surgery are unusual, one of which is Decemet's membrane detachment (DMD).Clinical caseA 64 year-old female diagnosed with open-angle chronic glaucoma, whose had undergone a viscocanalostomy of the left eye. In the immediate postoperative period we noticed a hemorrhagic DMD in the lower temporal quadrant. After adopting a wait and see attitude, we did not find improvement 15 days after surgery and corneal edema was established with vision decrease. We proceeded to a surgical reapplication by means of Descemet's membrane micropuncture and SF6 injection into the anterior chamber and achieving an anatomical and functional improvement.DiscussionWe believe that the intrusion of viscoelastic material into the supradescemetic was a consequence of the high-pressure during the high-density hyaluronate injection. Hemorrhagic DMD management is mainly determined by its location, size and evolution. In our case, the posterior endothelial micropuncture and descematopexy by means of 20% SF6 injection into the anterior chamber was useful in resolving this complication.     

Pupila tónica después de la infección por COVID-19

The latest global health threat is the ongoing outbreak of respiratory disease, which was named COVID-19 and multiple ever-evolving neurological complications have since been reported. We present the case of a patient with a bilateral tonic pupil in the postinfectious context of COVID-19. Brain magnetic resonance imaging and laboratory tests were normal, a 0.125% pilocarpine test confirmed the diagnosis     

Variante de la técnica de Nishida para la corrección quirúrgica del síndrome de déficit monocular de la elevación

Monocular elevation deficiency (MED) is characterized by unilateral limitation of supraductions, similar in adduction and abduction, in addition to hypotropia and ptosis. We describe a case of a 62-year-old woman with long-standing left ptosis who was initially operated with a frontal suspension technique. On subsequent examinations, a MED of that eye was found. The passive duction test was positive, so the inferior rectus was recessed. In addition, a modified Nishida technique was performed, consisting of the scleral anchorage of the superior edges of the rectus, medial and lateral, 12 mm from the corneal limbus in the superonasal and superotemporal quadrants, respectively. Postoperatively, the left eye presented a minimal hypotropia of 3 PD. This modified technnique used here on the horizontal rectus muscles, turned out to be effective and safe for the correction of MED.     

Coriorretinopatía serosa central bilateral y multifocal después de inyectar triamcinolona en un chalazión

We present a case of bilateral and multifocal central serous chorioretinopathy that developed one month after an intra-chalazion triamcinolone acetonide injection. Central serous chorioretinopathy spontaneously resolved during observation 3 months after diagnosis. We believe that central serous chorioretinopathy can occur as a complication of administration of depot corticosteroids even at a low dose.     

Edema macular agudo 2 años después de la cirugía de catarata por un fragmento nuclear retenido

Case reportA 78-year-old man presented with a 2-week history of decreased vision in the right eye (RE). Ocular history included uncomplicated cataract surgery in the RE 2 years earlier. Gonioscopy revealed a retained small nuclear fragment (sNF) in the anterior chamber (AC) and OCT showed macular edema (ME). The NF was fragmented with a YAG laser.DiscussionAC retained NF resulted in ME and reduced visual acuity. We recommend gonioscopy in cases of reduced visual acuity and history of phacoemulsification. ME and reduced vision may be reversed by removing the NF with YAG laser.     

Resultados de la cirugía de la catarata en un hospital docente de tercer nivel. Más allá del simple número

ObjectiveTo analyse a series of cataract surgeries performed in a third-fourth level teaching hospital, providing complementary data to the number of surgeries that can be used as a further reference, and to compare them with those published by other Public Health Systems, mainly the British one.MethodsRetrospective study of 1052 cataract procedures at the University Hospital of Valladolid from January 2016 to July 2016. Collected variables: age, gender, pre- and postsurgical visual acuity, degree of complexity of the cataract, duration of the surgery, and surgical complications.ResultsThe mean age of the patients was 74.1 ± 9.5 years, and 81.61% started from a VA <0.5. The duration of the surgery was collected only in 12% of the procedures. The complications rate was 1.8%, with one case of endophthalmitis. A final postoperative refraction was performed in only 44.7% of the cases. A total of 87.2% of the eyes achieved a VA ≥ 0.5 after surgery.ConclusionsThe results of the series show significant differences from those from the audit of the English National Healthcare System, with our patients being more complex and having less complications. There are missing-data in the collection of important variables such as post-surgical refraction or the duration of the surgery, which despite this, this work can be a good reference.