The effect of axial length on the short-term outcomes of cataract surgery combined with ab interno trabeculotomy.

PURPOSE: Minimally invasive glaucoma surgery is safer and effective surgical modality for patients with glaucoma. To compare the effect of axial length (AL) on the surgical outcomes of combined cataract surgery and ab interno trabeculotomy (phaco-LOT), a retrospective, non-randomized comparative study was performed. METHODS: In total, 458 eyes of 458 open-angle glaucoma patients who underwent phaco-LOT and were followed-up without any intervention for at least 6 months were enrolled. All were divided into a long-AL group (AL ≥ 26.0 mm, 123 eyes) and a not-long-AL group (AL < 26.0 mm, 335 eyes). The principal outcomes were the changes in intraocular pressure (IOP) and medication scores. We also sought a correlation between postoperative IOP spike and hyphema. RESULTS: Significant postoperative reductions in IOP and medication scores were apparent in all subjects. The IOP reductions were significant at all timepoints in the not-long-AL group, but not until 1 month postoperatively in the long-AL group, and the IOP change was significantly lower in the long-AL group from postoperative day 1 to 3 months. On subanalysis of subjects by age, the microhook used, the pre-operative IOP, and the medication score, a significantly higher incidence of IOP spike was observed in the long-AL group in weeks 1 and 2 (both p < 0.05), but this did not correlate with hyphema status, implying that a different mechanism was in play. CONCLUSION: Phaco-LOT was effective regardless of AL, but the postoperative IOP decrease was lower and the early postoperative incidence of IOP spike was higher in long-AL eyes.

Influence of Goniotomy Size on Treatment Safety and Efficacy for Primary Open-Angle Glaucoma: A Multicenter Study.

PURPOSE: To compare the efficacy and safety of 120-, 240-, and 360-degree goniotomy (GT) with or without phacoemulsification with intraocular lens implantation (PEI) for patients with primary open-angle glaucoma (POAG). DESIGN: Multicenter, retrospective, comparative, nonrandomized interventional study. METHODS: Patients diagnosed with POAG who underwent GT with or without PEI were included, and divided into 6 groups: 1) standalone 120-degree GT (120GT); 2) standalone 240-degree GT (240GT); 3) standalone 360-degree GT (360GT); 4) PEI + 120GT; 5) PEI + 240GT; and 6) PEI + 360GT. Data on intraocular pressure (IOP), the number of ocular hypotensive medications, and complications were collected and compared. Success was defined as a postoperative IOP within the range of 6 to 18 mm Hg and a 20% reduction from baseline without further glaucoma surgery. Complete success and qualified success were defined as the above without and with ocular hypotensive medications, respectively. RESULTS: Three hundred eight eyes of 231 patients were included with a mean follow-up of 14.4 ± 8.6 months (6.0-48.0 months). There were no significant differences in the reductions in IOP and number of medications and cumulative survival probability for complete and qualified success rates among the 3 groups of standalone GT and PEI + GT. The 360GT group had the highest proportion of hyphema with or without PEI. CONCLUSIONS: 120GT, 240GT, and 360GT with or without PEI showed similar efficacy in reducing IOP and medications used in POAG. 360GT with or without PEI was more likely to cause hyphema compared with 120GT or 240GT. 120GT with or without PEI was sufficient for treating POAG with or without cataract..

Cystoid macular oedema after descemet membrane endothelial keratoplasty.

AIMS: To determine the incidence and risk factors of cystoid macular oedema (CMO) following descemet membrane endothelial keratoplasty (DMEK) with or without combined cataract surgery (triple-DMEK). METHODS: We reviewed the records of patients who underwent DMEK surgery alone or triple-DMEK performed at the Rothschild Foundation Hospital (Paris, France) between January 2019 and March 2020. Patients with pre-existing CMO observed on the preoperative macular optical coherence tomography (OCT) were excluded. Spectral-domain OCT was performed in patients with postoperative visual impairment. Data regarding comorbidities, intraoperative characteristics and postoperative treatments or complications were collected and analysed. Univariate and multivariate analyses were performed. RESULTS: Twenty three of 246 eyes (9.36%) developed clinically significant (cs)-CMO after DMEK. Triple-DMEK was not associated with a higher risk to develop CMO (12.2% in DMEK alone and 6.1% in triple-DMEK). Pseudophakic bullous keratopathy (PBK ; 39.1% vs 9%; OR=3.5 (1.0 to 11.8), p=0.045) and epiretinal membrane (ERM; 39.1% vs 7.7%; OR=10.5 (3.4 to 32.3), p<0.001) were more frequently observed in patients who developed CMO. The occurrence of hyphaema during surgery was statistically associated with postoperative CMO (13% vs 1.3%; OR=7.1 (1.0 to 48.8) p=0.045). Peroperative epithelial debridement was statistically associated with postoperative CMO (65.2% vs 33.2%, p=0.005), but only in univariate analysis. CONCLUSIONS: We identified a clinically significant CMO incidence of 9.35% after DMEK. Patients with a history of ERM, PBK and intraoperative hyphaema may be at risk of developing CMO after DMEK surgery and should be monitored.

INFUSION-ASSISTED EVACUATION OF SUBMACULAR HEMORRHAGE.

PURPOSE: To report a novel surgical technique for evacuating submacular hemorrhage using the infusion stream of a 25-gauge vitrectomy system. METHODS: Surgical case and video. RESULTS: A 54-year-old man was taken to the operating room for a total hyphema, nonclearing vitreous hemorrhage, and elevated intraocular pressure after multiple tractional retinal detachment repairs by an outside surgeon. Intraoperatively, the hyphema and vitreous hemorrhage were cleared, and the source of bleeding was discovered to be an avulsed vessel through a pre-existing retinal break just superior to the optic nerve. A large submacular hemorrhage was also present that was unable to be drained through the break by aspiration alone. With the vitreous cavity under fluid, the infusion cannula was manipulated to guide the infusion stream onto the macula. The stream was directed in a distal to proximal manner toward the retinal break, and the submacular blood was successfully expressed out through the break. Postoperatively, the retina remained attached with almost complete resolution of the submacular hemorrhage. CONCLUSION: Using the mechanical pressure of the infusion stream can be an effective method for evacuating large subretinal hemorrhages.

Current Concepts of the Uveitis-Glaucoma-Hyphema (UGH) Syndrome.

PURPOSE: To discuss the pathophysiology, etiology, and current management strategies of uveitis-glaucoma-hyphema (UGH) syndrome. METHODS: Literature review. RESULTS: The classic UGH syndrome associated with anterior chamber intraocular lenses (ACIOL) have decreased in incidence with the modernization of IOL design and surgical techniques. The current UGH syndrome is increasing in prevalence largely related to a parallel increase in late onset dislocations of intraocular lenses (IOLs) and the developing techniques to remedy that condition. The modern features of UGH can present as cystoid macular edema, intraocular pressure elevation typically not attributed to UGH, and recurrent vitreous hemorrhage, unlike the original description as described by Ellingson in 1978. Medical management to control inflammation, reduce intraocular pressure, and reduced the bleeding diathesis are mainstays of therapy. However, surgery with IOL repositioning or exchange should be reserved for cases that are refractory to or progressing despite medical treatment. CONCLUSIONS: UGH syndrome is an increasingly common, poorly understood, and often subtle, manifestation of an anatomic disturbance post intraocular surgery that persists with continued evolution of intraocular surgical techniques and new imaging modalities to aid in its diagnosis.

Ocular injury from foam dart (Nerf) blasters: a case series.

To report clinical outcomes following ocular injury from foam dart (nerf) blasters - a spring-loaded toy guns that fire foam-coated darts or bullets at a relatively low velocity. These guns gained popularity in recent years among children and adolescents. Eleven patients with ocular injuries from foam dart blasters were included in this retrospective, single-center study. Visual acuity (VA), intraocular pressure (IOP), and anterior segment, glaucoma-related, and vitreoretinal complications were recorded at each visit. The average age at presentation was 13.4 years and 82% were male. Mean initial VA was 6/12 (range 6/6 - 1/18); On initial examination, nine patients (82%) had hyphema, three (27%) had corneal abrasions, three (27%) had vitreous hemorrhage, and two (18%) had traumatic mydriasis. Four patients (36%) experienced glaucoma-related complications, including three (27%) with angle recession and three (27%) with increased IOP. Three patients (27%) were diagnosed with posterior segment injuries, including three (27%) with commotio retinae and one (9%) with severe retinal photoreceptor damage. No patients required surgical intervention. CONCLUSION: Foam dart blasters can cause severe blunt ocular trauma and permanent visual loss, illustrating the need for eye protection when handling these toys. WHAT IS KNOWN: • Foam dart blasters, a blanket term for spring-loaded toy guns that fire foam-coated darts or bullets at a relatively low velocity, have gained popularity in recent years among pediatric populations, with an increase in associated ocular injuries. • To date, scattered case reporting provides insufficient insight into the full clinical spectrum of injury and prognosis of foam dart blasters related ocular injury. WHAT IS NEW: • This case series characterizes the myriad foam dart blasters injuries that may afflict the eye, most of which are self-limiting, but some of which may result in poor visual outcomes and lifelong disability in pediatric patients. • We strongly recommend that all users wear eye protection while using foam dart blasters.

Endoscopic Visualization for Atypical Uveitis Glaucoma Hyphema Syndrome Management.

We discuss how ophthalmic endoscopy was used in the management of 6 cases with atypical uveitis glaucoma hyphema syndrome. For case 1, the endoscope was used to remove a retained haptic foreign body after an intraocular lens (IOL) exchange with an iris-sutured IOL for a complete capsular bag-IOL complex dislocation. In case 2, the endoscope was key in identifying the presence and location of vascular lesions at the site of previous pars plana sclerotomies. In case 3, the endoscope enabled visualization of a large segmental Soemmering's Ring pushing a 3-piece IOL haptic into the posterior iris. For case 4, the endoscope allowed viewing of the sharp edge of the optic where the haptic of a one-piece lens had been amputated, and the sharp edge of the cut optic was anteriorly oriented and continuing to rub the posterior iris. In case 5, the endoscope confirmed the presence of 1 haptic of a 1-piece lens out of the capsular bag and in the sulcus space. Also, it showed that the capsular bag had inadequate zonular support to attempt repositioning the haptic into the bag. In case 6, the endoscope was helpful in identifying a 1-piece plate haptic IOL in the sulcus, with synechiae and anterior location causing iris bulging inferiorly.

Persistent corneal blood staining after microhook trabeculotomy: A case report.

INTRODUCTION: Hyphema, that is, massive anterior chamber hemorrhage, is one of the major complications after a recent minimally invasive glaucoma surgery. Hyphema along with high intraocular pressure increases the risk of corneal bloodstaining. PATIENT CONCERNS: A 71-year-old female was receiving 0.1% fluorometholone drops in both eyes for severe dry eye. She was also receiving antiplatelet agents for platelet aggregation hyperactivity and prednisolone for interstitial pneumonia internally. Her right eye was suffering from increased intraocular pressure. DIAGNOSIS: We diagnosed her right eye as steroid-induced glaucoma. INTERVENTIONS: We performed microhook trabeculotomy. OUTCOMES: At postoperative day 10, she had total anterior chamber hemorrhage and high intraocular pressure, and subsequently developed corneal blood staining at postoperative day 15, for which we performed anterior chamber cleaning. After that, we did not perform additional anterior chamber cleaning, and during the 1-year follow-up, a gradual improvement was noted in the entire cornea with reddish-brown opacity, from the periphery to the center. However, almost the entire pupil was still covered with opacity, and her visual acuity was at the light perception at the final visit. LESSONS: Corneal bloodstaining takes a considerable time to resolve and causes severe vision loss. Special attention should be given to persistent corneal blood staining when hyphema and high intraocular pressure are observed after minimally invasive glaucoma surgeries.

Factors Associated With Gonioscopy-Assisted Transluminal Trabeculotomy (GATT) Complications and Failure in Children.

PURPOSE: To identify the factors associated with the complications and failure of gonioscopy-assisted transluminal trabeculotomy (GATT) in children. DESIGN: Retrospective case series. METHODS: This study was conducted in an institutional setting in a pediatric population (aged <18 years) who had undergone GATT. Records were reviewed, and pre- and postoperative intraocular pressures (IOP), extent of angle treated, medications, complications, and failure were recorded. Failure was defined as IOP >21 mm Hg or <5 mm Hg, absence of at least 20% IOP reduction, performance of additional IOP-lowering surgery, or loss of light perception vision. RESULTS: A total of 74 eyes of 57 patients were included (mean age, 7.1 years). Over a median follow-up period of 28.5 months, 36 eyes (48.6%) failed. IOP spikes occurred in 25 eyes (33.8%) and were a significant risk factor for failure (hazard ratio [HR] = 2.17; P = .0207). Postoperative hyphema was a significant risk factor for IOP spike (HR = 4.13, P = .003) but not for failure (HR = 0.7, P = .2977). The risk of IOP spike was lowest in eyes treated with nonsteroidal anti-inflammatory drugs (NSAIDs; HR = 0.27, P = .0016). The risk of failure increased significantly in eyes that received topical corticosteroids (compared to NSAIDs; HR = 5.72, P = .0005), in eyes with <360○ incisions (HR = 4.69, P < .0001), and in younger children. CONCLUSIONS: GATT is a reasonably effective procedure in childhood glaucoma. Postoperatively, the use of topical NSAIDs (without corticosteroid) may decrease the risk of failure. Eyes with IOP spikes without hyphema are at the highest risk for failure.

Visual outcomes of open globe injury patients with traumatic cataracts.

PURPOSE: Open globe injury (OGI) is a serious form of ocular trauma that can significantly lower quality of life post-injury due to comorbidities. This study was designed to investigate how traumatic cataracts and other pre-operative variables affect visual outcomes of OGIs. METHODS: A retrospective review was conducted for OGI patient records with presence of traumatic cataracts, visual outcomes, comorbidity data and provider training. Multivariable logistic regression analysis determined if several pre-operative variables including traumatic cataracts, retinal detachment and hyphema were predictive of final visual acuity and need for retinal surgery. Ancillary multivariable analysis was conducted to evaluate if timing of traumatic cataract extraction predicted poor final visual acuity. RESULTS: Multivariable logistic regression analysis did not find traumatic cataract to be an independent predictor of final visual outcome in the open globe injury sample population (n = 102, p = 0.386), but did find retinal detachment (p = 0.008), hyphema (p = 0.035) and scleral laceration (p = 0.009) to be independent predictors of poor final visual acuity. In the subgroup of eyes with traumatic cataract (n = 64), delayed cataract extraction was not found to be an independent predictor of poor final visual acuity (p = 0.156). CONCLUSION: Our results suggest that retinal detachment, hyphema, and scleral laceration influence final visual outcome while traumatic cataract does not. Within the subpopulation of patients that received lens extraction, timing of extraction was not found to independently influence final visual acuity.

Uveitis-Glaucoma-Hyphema Syndrome: Clinical Features and Differential Diagnosis.

PURPOSE: to study the clinical features of uveitis-glaucoma-hyphema (UGH) syndrome, particularly those useful for a differential diagnosis from unilateral hypertensive acute anterior uveitis. METHODS: A retrospective chart review was conducted on the clinical features of 9 patients with UGH syndrome. These features were then compared with those detected in 50 patients with unilateral hypertensive acute anterior uveitis. RESULTS: Fine and pigmented keratic precipitates (p = .0002 and p = .00004, respectively), iris atrophy (p = .0122), hyphema and vitreous opacities > 2+ (p = .0003), and cystoid macular edema (p = .009) were statistically associated with UGH syndrome. These clinical signs show a high specificity, ranging from 58 to 100%; the presence of pigmented keratic precipitates in the setting of a unilateral acute hypertensive anterior uveitis has a sensitivity and specificity of 89% and 84%, respectively. CONCLUSION: In patients operated on for cataract, UGH syndrome can be differentiated from unilateral hypertensive acute anterior uveitis considering specific clinical signs.

The role of anterior segment optical coherence tomography in uveitis-glaucoma-hyphema syndrome.

PURPOSE: To describe features of uveitis-glaucoma-hyphema (UGH) syndrome, using Anterior Segment-Optical Coherence Tomography (AS-OCT) and Ultrasound Biomicroscopy (UBM) and to evaluate the diagnostic role of AS-OCT as an imaging technique alternative to UBM. DESIGN: Retrospective case series. METHODS: Four eyes of 4 patients with UGH syndrome were analyzed. All patients reported previous uncomplicated cataract surgery with in-the-bag implantation of single-piece-intraocular lens (IOL). They underwent at presentation complete ophthalmological examination and imaging with slit-lamp anterior segment photographs, UBM and AS-OCT. RESULTS: Although AS-OCT did not allow to visualize the structures behind the iris, it displayed a contact between IOL (plate and/or haptics) and iris and IOL tilting in 3 out of 4 eyes. AS-OCT directly detected the cause of UGH syndrome in one eye, 2 eyes required some expedients to display the iris chafing, like scans in mydriasis and/or patient's gaze direction change. AS-OCT did not allow to appreciate the IOL-iris contact (showed by UBM technique) only in one eye, probably due to the change of patient position from supine to sitting, and consequent anteriorization of iris diaphragm. Furthermore AS-OCT showed fine details, as capsular bag collapse and indirect signs of haptic malposition in 3 out of 4 eyes. CONCLUSION: AS-OCT is a non-invasive technique that allows to determine IOL position and IOL-uveal contact in selected cases of UGH syndrome. Considering AS-OCT and UBM advantages and limitations, AS-OCT should be used as first imaging modality when clinical diagnosis is uncertain. When UGH diagnosis cannot be verified using AS-OCT, UBM should be performed.

A Novel Procedure for the Management of Severe Hyphema after Glaucoma Filtering Surgery: Air-Blood Exchange under a Slit-Lamp Biomicroscopy.

Background and Objectives: This study introduces a novel office-based procedure involving air-blood exchange under a slit-lamp microscope for treatment of severe hyphema after filtering surgery. Materials and Methods: This retrospective study enrolled 17 patients (17 eyes) with a diagnosis of primary open-angle glaucoma with severe hyphema (≥4-mm height) after filtering surgery. All patients were treated with air-blood exchange under a slit-lamp using room air (12 patients) or 12% perfluoropropane (C3F8; five patients). Results: The procedures were successful in all 17 patients; they exhibited clear visual axes without complications during follow-up. In the room air group, the mean visual acuity (VA) and hyphema height significantly improved from 1.70 ± 1.07 LogMAR and 5.75 ± 1.14 mm before the procedure to 0.67 ± 0.18 LogMAR and 2.83 ± 0.54 mm after the procedure (p = 0.004; p < 0.001). In the C3F8 group, the mean VA showed a trend, though not significant, for improvement from 1.70 ± 1.10 LogMAR to 0.70 ± 0.19 LogMAR (p = 0.08); the mean hyphema height showed a trend for improvement from 5.40 ± 0.96 mm to 3.30 ± 0.45 mm. Compared with the C3F8 group, the room air group showed the same efficacy with a shorter VA recovery time. Conclusions: "Air-blood exchange under a slit-lamp using room air" is a convenient, rapid, inexpensive, and effective treatment option for severe hyphema after filtering surgery, and may reduce the risk of failure of filtering surgery.

Yoga-induced uveitis glaucoma hyphema syndrome.

A 74-year-old pseudophakic white woman with pseudoexfoliation syndrome presented with right eye pain and photophobia and was found to have pseudophacodenesis with recurrent episodes of anterior uveitis, microhyphema, and elevated intraocular pressure (IOP). All episodes occurred after yoga sessions with intensive facedown postures. Ultrasound biomicroscopy (UBM) performed in supine and prone positions demonstrated significant change in the lens-bag complex position, with lens-iris touch. The patient underwent intraocular lens (IOL) explantation, anterior vitrectomy, and flanged intrascleral haptic-fixated IOL placement via double-needle technique, with resolution of all symptoms.

Intraocular endoscopy for the evaluation and treatment of hypotony due to a traumatic cyclodialysis: a case report.

BACKGROUND: A cyclodialysis cleft often leads to direct communication between the anterior chamber and the suprachoroidal space. It is a rare condition that is encountered with blunt trauma, and less commonly, after surgery. Hypotony is the major sequelae that may lead to hypotonous maculopathy, optic disc edema, corneal folds, and astigmatism. These may cumulatively lead to visual loss. We describe how endoscopy in a cyclodialysis repair allowed us to accurately locate the cleft and guided its appropriate management avoiding unnecessary cryopexy. CASE PRESENTATION: A 41-year-old male experienced a traumatic cyclodialysis cleft, which resulted in persistent hypotony. Pars plana vitrectomy was performed to treat vitreous hemorrhage. Scleral indentation was attempted to visualize the cyclodialysis cleft. However, the depression distorted the visualization. Intraocular endoscopy was therefore used to evaluate the cleft. Guided by this assessment, only intraocular gas tamponade was used to reposition the ciliary body. The patient's intraocular pressure was restored to 13 mmHg 3 days after the operation, and OCT confirmed cleft closure 1 month after the operation. CONCLUSION: Endoscopy-assisted repair of cyclodialysis is an approach that enhances visualization and can guard against common causes of persistent cleft and hypotony, as well as reveal the causes of recurrent failure. Hence, it can eliminate unnecessary cryopexy that might worsen the hypotonous state. In our case, intraocular endoscopy was effective for the evaluation of a cyclodialysis cleft and the subsequent selection of an appropriate management technique, gas tamponade, that was more conservative than other approaches initially considered.

Diode laser transscleral cyclophotocoagulation for uveitis-glaucoma-hyphema syndrome: A case report.

RATIONALE: To report a case of diode laser transscleral cyclophotocoagulation (DLTSC) for uveitis-glaucoma-hyphema syndrome (UGH). PATIENT CONCERNS: The patient developed UGH on the right eye (OD) after vitrectomy and intraocular lens (IOL) implantation. DIAGNOSES: Best corrected visual acuity (BCVA) was HM/50 cm, intraocular pressure (IOP) was 51.3 mm Hg on the OD. He was found to have 3+ anterior chamber cells. A B-scan ultrasound showed vitreous opacity. Ultrasound biomicroscopy (UBM) showed the chafing between the IOL and the posterior surface of the iris. Thus, he was diagnosed as UGH on the OD. INTERVENTIONS: The patient was worried about the complications for removal of the IOL, a DLTSC approach was performed. OUTCOMES: BCVA was 20/40 on the OD, IOP was 12 mm Hg on the OD. There were no anterior chamber inflammation and no vitreous opacity. UBM showed there was no contact between IOL and the posterior surface of the iris, the fundus of the eye was clearly visible. LESSONS: UGH syndrome is a severe complication of cataract extraction. IOL extraction has been the traditional approach to treatment. DLTSC can be an option when the IOL is slightly tilted.

Pattern of ocular injuries in Bangladesh and its surgical management at hospital setting: A retrospective study.

OBJECTIVE: To determine the pattern of ocular injuries and their surgical management.. Methods: The retrospective study was conducted at the Chittagong Eye Infirmary and Training Complex, Chittagong, Bangladesh, and comprised hospital data of patients with ocular injuries from October 1, 2016, to December 31, 2017. Information gathered related to type and cause of injuries, visual acuity, postoperative complications, follow-up visits, and outcome. SPSS version 22 was used for data analysis. Results: Of the total injuries, 370 (91%) were classified open globe and 36 (9%) as close globe. In terms of type of injury, 330 (81.4%) were penetrating, 30 (7.3%) ruptured globe, 29 (7.1%) lime burn and 17 (4.2%) injuries were traumatic hyphaema and chemical in nature. Open globe injuries were mostly found in subjects aged 18 years or below. Surgery was the main mode of management in 388 (95.5%) patients. Conclusion: Preventive measures along with high-quality management should receive priority for reducing monocular blindness.