Follow-Up of Bilateral Iridoschisis in a Patient With Alport Syndrome.

This case report discusses the long-term follow-up of a patient with bilateral iridoschisis and Alport syndrome.

A case report of iridoschisis and cataract: a challenging diagnosis.

PURPOSE: To report the cataract surgery of a 79-year-old female patient with iridoschisis and senile nuclear cataracts. OBSERVATIONS: Ophthalmologic examination of the 79-year-old female patient who came to our clinic with complaints of decreased vision in the right eye was observed to have a grade-3 senile nuclear cataract and iridoschisis in quadrants 2-3, 4-7, and 10-11 of the iris in the right eye and a grade-2 senile nuclear cataract and iridoschisis in quadrants 5-7 in the left eye to a lesser extent compared to the right eye. The iris fibrils were not connected to the corneal endothelium. A safe surgical area was created by administering the viscoelastic material several times during cataract surgery. CONCLUSIONS AND IMPORTANCE: Although iridoschisis has a low incidence rate, it is important to also consider comorbid ocular pathologies when treating iridoschisis patients. Since cataract surgery for these patients is more specialized than for uncomplicated cases, the necessary surgical planning must be paid due diligence.

A case of iridoschisis with partial lens dislocation in both eyes.

BACKGROUND: Iridoschisis is a rare condition that primarily affects individuals aged 60-70 years. The predominant characteristics of iridoschisis involve the tissue splitting and separation of the iris stromal layers, often resulting in two distinct layers and the presence of floating fibers in the anterior chamber. This article reports the case of a 48-year-old male with iridoschisis with partial lens dislocation in both eyes. CASE PRESENTATION: Trauma is the leading factor in the development of iridoschisis. However, there is no documented case of ocular trauma in the patient's medical history. Visible white atrophic fibers were observed bilaterally in the anterior iris stroma of both eyes of the individual, accompanied by a small quantity of iris tissue within the anterior chamber. In this instance, the magnitude of the iridoschisis corresponded with the degree of lens dislocation. We were apprised that the patient had regularly used a cervical massager for a prolonged period of time, positioning it upon the ocular region. Frequent stimulation of both eyes with excessive force resulted in the development of iridoschisis and the partial dislocation of the lens.During the initial surgical procedure, phacoemulsification (Phaco) was carried out on the left eye without the placement of an intraocular lens (IOL). Following a two-month interval, we proceeded with the IOL suspension. Subsequently, the right eye underwent Phaco, accompanied by the implantation of an IOL. After closely monitoring the patient's progress for two months, it was evident that their vision had significantly improved, substantiating the success of the surgical interventions. CONCLUSIONS: This finding posits that the recurrent friction applied to both eyes may induce iridoschisis and various ocular complications. In the event of ocular intricacies manifesting, expeditious medical intervention becomes imperative.

Unilateral progressive anterior iris adhesions in Mowat-Wilson syndrome: a new ocular finding.

Ocular associations in Mowat-Wilson syndrome (MWS) are rare. Those involving the anterior segment are scarce in the literature. We describe a child with genetic confirmation of MWS that presented with acquired onset of unilateral anterior iris adhesions with no known trauma.

Bilateral acute iris transillumination (BAIT) syndrome: Differential diagnosis based on clinical, OCT and UBM findings.

INTRODUCTION: Bilateral acute iris transillumination (BAIT) is a relatively new syndrome whose etiopathogenesis is still not fully understood. It is characterized by acute bilateral onset of intense pigment dispersion in the anterior chamber, iris depigmentation with severe transillumination defects, accentuated pigment deposition in the angle, and elevated intraocular pressure (IOP). In literature, the first case was of bilateral acute iris depigmentation (BADI) reported in 2004 in a 77-year-old woman. In 2019, Perone et al. published a review about BAIT syndrome. They reported a total of 79 cases have been published up that date, mainly in Europe and especially in Turkey and Belgium. The majority of reported cases were of bilateral acute iris depigmentation (BADI). BAIT syndrome might be mainly confused with acute iridocyclitis, acute primary angle-closure (APAC) and pigment dispersion syndrome (PDS). In relation to BAIT, controversies still exist regarding the etiology being the differential diagnosis of paramount importance for adequate treatment. PURPOSE: To report a case of BAIT syndrome associated to refractory glaucoma and to discuss the differential diagnosis based on clinical, OCT and UBM findings. METHODS: We present a case of BAIT syndrome in which clinical, OCT and UBM findings have pointed out the similarities and, mainly the diagnosis differences with other ocular diseases. CONCLUSIONS: BAIT syndrome with accentuated IOP rise must be differentiated of other ocular diseases. It requires urgent clinical therapy and/or surgical management as occurred in the present case for avoiding structural damage in OCT and visual field loss. OCT and UBM are critical for early recognition, differential diagnosis and management.

Prospective analysis of anatomic features predisposing patients to intraoperative floppy iris syndrome.

PURPOSE: To aid preoperative risk assessment by identifying anatomic parameters corresponding with a higher risk of intraoperative floppy iris syndrome (IFIS) during cataract surgery. METHODS: Prospective cohort study of 55 patients with α1-adrenergic receptor antagonist (α1-ARA) treatment and 55 controls undergoing cataract surgery. Anterior segment optical coherence tomography (AS-OCT), video pupilometer, and biometry measurements were performed preoperatively and analyzed regarding anatomic parameters that corresponded with a higher rate of IFIS. Those statistically significant parameters were evaluated with logistic regression analysis and receiver operating characteristic (ROC) curve. RESULTS: Pupil diameter was significantly smaller in patients who developed IFIS compared to those who did not develop IFIS (AS-OCT 3.29 ± 0.85 vs. 3.63 ± 0.68, p = 0.03; Pupilometer 3.56 ± 0,87 vs. 3.95 ± 0.67, p = 0.02). Biometric evaluation revealed shallower anterior chambers in the IFIS group (ACD 3.12 ± 0.40 vs. 3.32 ± 0.42, p = 0.02). Cutoff values for 50% IFIS probability (p = 0.5) were PD = 3.18 mm for pupil diameter and ACD = 2.93 mm for anterior chamber depth. ROC curves of combined parameters were calculated for α1-ARA medication with pupil diameter and anterior chamber depth, which yielded an AUC of 0.75 for all IFIS grades. CONCLUSION: The combination of biometric parameters with history of α1-ARA medication can improve assessment of risk stratification for IFIS incidence during cataract surgery.

Atypical presentation of bilateral iridoschisis with abnormal visibility of iris vessels: Role of anterior segment optical coherence tomography.

PURPOSE: To describe clinical and anterior segment optical coherence tomography (AS-OCT) findings in a patient with bilateral iridoschisis and unilateral angle closure glaucoma (ACG) associated with abnormal visibility of iris vessels. CASE PRESENTATION: A 67-year-old male patient with a history of red and painful left eye (LE) one year earlier, presented to our ophthalmology department for a routine examination.Ophthalmic examination of the right eye revealed narrow anterior chamber with sectorial iris atrophy associated to abnormal visibility of an iris vessel. Intraocular pressure (IOP) was 12 mmHg with normal optic disc appearance. LE anterior chamber was narrow with diffuse iris atrophy and abnormal vessels visibility. IOP was 28 mmHg with an important optic disc excavation. On gonioscopy, angle was narrow without neovessels nor synechiae. AS-OCT of both eyes revealed shallow angles, iris splitting with material release in the anterior chamber, while pigmented epithelium was preservedAnti-glaucoma eye drops were prescribed and peripheral laser iridotomy was performed in both eyes with decreased IOP at 14 mmHg in the LE. CONCLUSION: Iridoschisis is a rare ocular condition characterized by a separation between the anterior and posterior layers of iris stroma with several clinical presentations, and may be associated with abnormal visibility of iris vessels in some cases. The diagnosis of iridoschisis may be challenging and AS-OCT can be a very useful tool to confirm the diagnosis in atypical presentations and to detect associated angle closure.

Surgical Management of Iris Bombe in Muscle-Eye-Brain Disease.

A 2-year-old girl with severe muscular dystrophy presented with unilateral eye pain and corneal clouding. She was found to have absent red reflex, hypotonia, cerebral hypoplasia, and iris bombe on ultrasound biomicroscopy, a feature not previously reported in this syndrome. She responded favorably to surgical management. Iris bombe can be a cause of glaucoma in muscle-eye-brain disease. This highlights the importance of incorporating ultrasound biomicroscopy into the diagnostic algorithm of muscle-eye-brain disease and other types of congenital syndromic glaucoma. [J Pediatr Ophthalmol Strabismus. 2023;60(4):e35-e37.].

Iris color as a predictive factor for intraoperative floppy iris syndrome.

PURPOSE: To assess the influence of iris color on the predisposition for intraoperative floppy iris syndrome (IFIS) during cataract surgery. METHODS: Medical records of patients who underwent cataract surgery in two medical centers between July 2019 and February 2020 were reviewed. Patients younger than 50 years, with preexisting ocular conditions affecting pupillary size or anterior chamber depth (ACD), and combined procedures were excluded. The remaining patients were questioned via telephone regarding their iris color. The association of IFIS occurrence and severity with iris color was tested using univariant and multivariant analyses. RESULTS: Overall, 155 eyes of 155 patients were included, 74 with documented IFIS and 81 without. The mean age was 74.03 ± 7.09 years, and 35.5% were female. The most common iris color among study eyes was brown (110/155, 70.97%), followed by blue (25/155, 16.13%) and green (20/155, 12.90%). Compared to brown-colored eyes, blue irises exhibited a 4.50-fold risk for IFIS (OR = 4.50, 95% CI: 1.73-11.70, p = 0.002), and green irises 7.00-fold risk (OR = 7.00, 95% CI: 2.19-22.39, p = 0.001). After adjusting for possible confounders, the results remained statistically significant (p < 0.01). Light-colored irises tended to exhibit a more severe IFIS compared to the brown iris group (p < 0.001). IFIS bilaterality was also affected by iris color (p < 0.001), with a 10.43-fold risk for fellow eye IFIS in the green iris group compared to eyes with brown irises (OR = 10.43, 95% CI: 3.35-32.54, p < 0.001). CONCLUSIONS: Light iris color was associated with a significantly increased risk of IFIS occurrence, severity, and bilaterality on univariate and multivariate analysis in this study.

A novel iridoplasty suture technique to repair iris defects and traumatic mydriasis.

A new iridoplasty method is described, which uses the U-suture technique to repair traumatic mydriasis and large iris defects. Two 0.9 mm opposing corneal incisions were made. The needle was inserted through the first incision, passed through the iris leaflets, and removed through the second incision. The needle was reinserted through the second incision and removed through the first incision by re-passing the needle through the iris leaflets to form a U-shaped suture. The modified Siepser technique was applied to fix the suture. Thus, with a single knot, the iris leaflets were brought closer (shrinking like a pack), fewer sutures were used and fewer gaps were left. Satisfactory aesthetic and functional results were obtained in all cases in which the technique was applied. There was no suture erosion, hypotonia, iris atrophy, or chronic inflammation during the follow-up.

Primary Iris Stromal Cyst in a Female Patient Aged 26 Years.

This case report describes a diagnosis of primary iris stromal cyst in female patient aged 26 years during a routine ophthalmologic examination.

Bilateral Acute Iris Transillumination and Elevated Intraocular Pressure After COVID-19 Infection.

Bilateral acute iris transillumination (BAIT) is characterized by abundant pigment discharge into the anterior chamber. Atonic pupil and severe intraocular pressure (IOP) elevations may be observed. Generally, there is a viral upper respiratory tract infection or systemic fluoroquinolone usage before BAIT. Two cases with a recent history of coronavirus disease 2019 (COVID-19) presented with a complaint of decreased vision. Elevated IOP and iris transillumination defects were observed in both patients. Both patients were diagnosed with BAIT. Although elevated IOP was controlled with medical treatment in 1 patient, glaucoma surgery was performed in the other patient because it could not be controlled with medical treatment. As both patients received no systemic treatment for COVID-19, the pressure rise seems to be directly related to the viral infection alone through the inflammatory process. Atypical ocular presentations of COVID-19 should be kept in mind as it can have serious consequences.

Bilateral Acute Iris Transillumination (BAIT): A Rare Syndrome Possibly Associated with COVID-19 and Moxifloxacin Use. A Report of 2 Cases.

Bilateral acute iris transillumination (BAIT) is a rare clinical entity, presumed to be associated with preceding upper respiratory tract infection and/or use of certain antibiotics, marked by bilateral acute loss of iris pigment epithelium with pigment dispersion in the anterior chamber and trabecular meshwork, which can cause elevated intraocular pressure and glaucoma, and with iris transillumination and sphincter paralysis which lead to photophobia and blurry vision. We report the first two cases of BAIT in our center which both had a history of preceding COVID-19 (coronavirus disease 2019) and moxifloxacin use. With more awareness, ophthalmologists might diagnose more cases, and thus gain more information regarding the link between COVID-19 and BAIT, which might be underdiagnosed since it is rare or easily misdiagnosed as some more common diseases with similar features.

Evaluation of the characteristics of primary iridociliary cysts using ultrasound biomicroscopy at a tertiary care centre.

OBJECTIVE: To evaluate the ultrasound biomicroscopic characteristics of primary iridociliary cysts presenting to a Canadian tertiary care centre. DESIGN: Retrospective study. PARTICIPANTS: A total of 189 patients (212 eyes) referred to the Sinai Health System (Toronto) for suspected iris abnormalities. METHODS: Clinical records of patients referred between March 2016 and October 2019 were reviewed. All patients were evaluated and received a diagnosis of an iridociliary cyst using ultrasound biomicroscopy (UBM). Data were collected for age, sex, involvement (iris vs ciliary body), laterality, size, and location on initial examination and subsequent follow-up. RESULTS: Of the 189 patients (212 eyes) with iridociliary cysts, more were female (65.1%) versus male (34.9%). The highest incidence occurred in females aged 21-30 years (13.2%). The iris pigment epithelium was involved in 84.4%, and only the ciliary body was involved in 3.8%. Both the iris pigment epithelium and the ciliary body were involved in 10.8%. The size of the cysts ranged between 0.5 and 4.41 mm in diameter. Cysts greater than 1 mm in diameter occurred in 78.7%, and 86.8% of cysts occurred unilaterally. Twelve percent were multicystic, and 8.5% were multiloculated, with 1% exhibiting both features. Twenty-three eyes (12.2%) were reviewed at 1 year of follow-up with UBM. Stable iridociliary cysts with no appreciable change in size were seen in 73.9% (n = 17). Iridociliary cyst growth was noted at 4 months in 1 patient. CONCLUSION: Information regarding iridociliary cysts is not easily available in the literature. UBM is a helpful clinical tool in the evaluation of iris abnormalities. Iridociliary cysts tend to be stable and compatible with a low rate of complications.

Bilateral Acute Depigmentation of Iris (BADI) and Bilateral Acute Iris Transillumination (BAIT)Following Acute COVID-19 Infection.

PURPOSE: To report the presenting features and outcomes in patients who developed bilateral acute iris transillumination (BAIT) or bilateral acute depigmentation of iris (BADI) following acute COVID-19 infection. METHODS: Thirty two eyes of 16 patients were reviewed retrospectively. The severity of COVID-19 infection, use of antibiotics, time of onset of ocular symptoms; ocular signs, the course and surgical procedures were recorded. RESULTS: 24 eyes of 12 BAIT and eight eyes of four consecutive BADI patients were included. The mean time between infection and onset of ocular symptoms was 2.5±1.1 weeks. Nine patients were treated with oral moxifloxacin for COVID-19 prior to presentation. Trabeculectomy was performed in 7 eyes (21.8%) of 5 BAIT patients; in the postoperative follow-up, IOP was controlled without medication in 6 eyes, with medication in 1 eye. CONCLUSION: BADI and BAIT can also develop after COVID-19 infection. A significant proportion of BAIT patients may require glaucoma surgery.