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1.
Vestn Oftalmol ; 140(3): 27-33, 2024.
Artigo em Russo | MEDLINE | ID: mdl-38962976

RESUMO

Congenital subluxation of the lens as a complication of Marfan syndrome, Weill-Marchesani syndrome, microspherophakia, etc. leads to the development of amblyopia and requires timely surgical treatment with removal of the subluxated lens and implantation of an artificial intraocular lens (IOL). IOL implantation in children with pathology of the ligamentous apparatus of the lens remains an urgent problem of ophthalmic surgery due to the lack of a consensus regarding the IOL fixation method among practitioners. PURPOSE: This study evaluated the effectiveness and safety of IOL implantation with transscleral fixation using the knotless Z-suture technique in pediatric patients with congenital lens subluxation. MATERIAL AND METHODS: The study included 24 children (36 eyes) with grade III congenital subluxation of the lens who underwent phacoaspiration of the subluxated lens with IOL implantation with transscleral fixation using the knotless Z-suture performed in the Kazakh Research Institute of Eye Diseases in Almaty in the period from 2017 to 2021. The average observation period was 31.7±11.3 months (2.0 to 4.5 years). The stability of the IOL position, the state of the intrascleral sutures, visual acuity after surgery, the presence and severity of complications in the long-term period were evaluated. RESULTS: All patients (100%) had a significant improvement in visual acuity after surgery. No intraoperative complications were registered in any of the cases. Postoperative complications were noted in 8.3% of cases (n=3). The final functional outcome of surgical treatment depended on the presence of concomitant pathology, the main cause of low vision was the development of refractive amblyopia due to refractive errors. CONCLUSIONS: The presented technique of transscleral fixation of IOL has proven to be reliable, which is especially important for pediatric patients considering their high physical activity and expected lifespan.


Assuntos
Implante de Lente Intraocular , Subluxação do Cristalino , Lentes Intraoculares , Esclera , Acuidade Visual , Humanos , Masculino , Feminino , Subluxação do Cristalino/cirurgia , Subluxação do Cristalino/etiologia , Subluxação do Cristalino/diagnóstico , Implante de Lente Intraocular/métodos , Implante de Lente Intraocular/efeitos adversos , Pré-Escolar , Lentes Intraoculares/efeitos adversos , Esclera/cirurgia , Técnicas de Sutura , Resultado do Tratamento , Criança , Complicações Pós-Operatórias/etiologia
2.
Digit J Ophthalmol ; 30(2): 38-41, 2024.
Artigo em Inglês | MEDLINE | ID: mdl-38962667

RESUMO

A 29-year-old man presented with longstanding, stable, unilateral vision loss in the setting of a remote paintball injury. His examination was notable for a sensory exotropia as well as multiple foci of posterior synechiae, segments of white lenticular material and islands of lenticular cells within a grossly intact capsule, and severe zonular compromise in the affected eye. The majority of the nuclear lens material was absent. The patient was diagnosed with post-traumatic lens absorption and underwent synechialysis, capsulotomy, excision of remnant lenticular material, and placement of a sulcus lens, with significant improvement in visual acuity and ocular alignment following surgery. Our report uniquely highlights identification of a Soemmering's ring in an absorbed lens in the presence of an intact anterior and posterior capsule as well as successful refractive and sensorimotor outcomes following surgical repair despite delay in treatment of many years.


Assuntos
Traumatismos Oculares , Cápsula do Cristalino , Acuidade Visual , Humanos , Masculino , Adulto , Cápsula do Cristalino/cirurgia , Traumatismos Oculares/diagnóstico , Traumatismos Oculares/complicações , Traumatismos Oculares/cirurgia , Traumatismos Oculares/etiologia , Cristalino/lesões , Cristalino/cirurgia , Subluxação do Cristalino/etiologia , Subluxação do Cristalino/diagnóstico , Subluxação do Cristalino/cirurgia
3.
Rom J Ophthalmol ; 68(2): 170-172, 2024.
Artigo em Inglês | MEDLINE | ID: mdl-39006324

RESUMO

Aim: To describe the case of a patient with Marfan syndrome who had bilateral superonasal lens subluxation. Method: The case of a male patient, aged 18, who complained of having impaired vision in both eyes (BE) since he was a toddler, was presented. On examination of the patient, features suggestive of Marfan syndrome were revealed, as well as bilateral intraocular lens subluxation. Results: The patient was refracted and glasses were recommended, which improved his vision. The patient was referred to the cardiology, orthopedic, and dental departments for a multidisciplinary approach to prevent complications and further management. Discussion: Lens subluxation is frequently presented as a primary clinical manifestation of Marfan syndrome. It can vary from asymptomatic, which is seen only after pupillary dilation, to significant subluxation, in which the equator of the lens in the pupillary axis causes diplopia or decreased vision. Conclusion: This case underscored the importance of considering the rare feature of Marfan syndrome.


Assuntos
Subluxação do Cristalino , Síndrome de Marfan , Acuidade Visual , Humanos , Síndrome de Marfan/complicações , Síndrome de Marfan/diagnóstico , Subluxação do Cristalino/etiologia , Subluxação do Cristalino/diagnóstico , Masculino , Adolescente
4.
Indian J Ophthalmol ; 72(7): 1075, 2024 Jul 01.
Artigo em Inglês | MEDLINE | ID: mdl-38905471

RESUMO

BACKGROUND: Traboulsi syndrome is a sporadic autosomal recessive disorder. Very few cases reported and no surgical treatment has been described. PURPOSE: The purpose of the study was to describe the surgical treatment of a case of Traboulsi syndrome with intercalary staphyloma. SYNOPSIS: Traboulsi syndrome[1-3] is a type of spontaneous filtering bleb. The case was of a 31-year-old lady with a flat anterior chamber and large intercalary staphyloma, with a subluxated clear lens. Liberal peritomy was done. The staphyloma was cut and the displaced lens was delivered through it. It was closed with 7-0 vicryl continuous suture. A cross-linked cornea was used after removing the Descemet membrane. It was modified to match the crescentic shape of the limbus by using 11 and 6 mm trephine. Two wedge-shaped defects were created and tissue was excised between them, which were then sutured to increase the arc radius. A peripheral flange at the corneal edge was created. A pocket was created in the host cornea to accommodate the donor corneal flange. The donor cornea was tucked in and the graft was sutured. The sclera was used to suture another side prophylactically, making a 360-degree encirclage. The patient got ambulatory vision postsurgery. The use of the cornea as biological encirclage has not been described previously. HIGHLIGHTS: Using a cross-linked cornea. Creating wedge-shaped defects in crescentic corneal graft to increase arc radius. Use of cornea as encirclage.Link of video:https://youtu.be/T3b5rkvFmlc.


Assuntos
Acuidade Visual , Humanos , Adulto , Feminino , Câmara Anterior/cirurgia , Síndrome , Subluxação do Cristalino/cirurgia , Subluxação do Cristalino/diagnóstico , Procedimentos Cirúrgicos Oftalmológicos/métodos , Técnicas de Sutura , Pressão Intraocular/fisiologia
7.
J Craniofac Surg ; 35(5): e463-e466, 2024.
Artigo em Inglês | MEDLINE | ID: mdl-38781430

RESUMO

Overmature cataract refers to the advanced stage of cataract where timely surgical intervention is not performed, leading to further progression characterized by decreased water content in the lens, degradation of fibers, and liquefaction within its structure, which can cause a reduction in volume, wrinkling of the capsule, as well as calcification or cholesterol crystallization on its surface. In addition, it may result in deepening of the anterior chamber. If left promptly untreated, these complications may result in visual impairment or even blindness. The occurrence of spontaneous complete dislocation of the lens nucleus into the anterior chamber in overmature cataracts is extremely uncommon. The authors present a case study involving a 74-year-old female patient who was diagnosed with complete dislocation of the lens nucleus in an overmature senile cataract without any apparent ocular injury or any relevant medical records. After undergoing cataract removal combined with anterior vitrectomy, the patient experienced relief from eye discomfort and expressed satisfaction with the surgical outcome; however, her visual acuity did not show significant improvement.


Assuntos
Câmara Anterior , Extração de Catarata , Catarata , Subluxação do Cristalino , Humanos , Feminino , Idoso , Subluxação do Cristalino/cirurgia , Subluxação do Cristalino/etiologia , Câmara Anterior/patologia , Vitrectomia , Acuidade Visual , Núcleo do Cristalino/cirurgia , Núcleo do Cristalino/patologia
8.
BMC Ophthalmol ; 24(1): 210, 2024 May 13.
Artigo em Inglês | MEDLINE | ID: mdl-38741065

RESUMO

BACKGROUND: Parry-Romberg syndrome (PRS) is a rare progressive degenerative disorder of unknown etiology. Here we report a rare case of PRS combined with lens subluxation in Eye and ENT hospital of Fudan University, Shanghai. To our knowledge, it is the first reported case of PRS combined with lens subluxation that has been managed surgically with phacoemulsification and CTR placement and IOL implantation in Shanghai. CASE PRESENTATION: A 60-year-old woman was referred for "right visual blur for 2 years" and had persistent right facial paralysis of unknown etiology since the age 12. She had right facial muscle atrophy and paralysis. Eye examination also showed the right eyelid pseudoptosis, enophthalmos, age-related cataract combined with lens subluxation existed in the right eye. The patient was diagnosed as age-related cataract and lens subluxation in the right eye and progressive hemifacial atrophy (Parry-Romberg syndrome). We conducted a combined phacoemulsification, IOL and CTR implantation and pupilloplasty surgery for the patient under general anesthesia and the postoperative UCVA was 20/30 and remained for 1 year's follow up. CONCLUSIONS: Here we reported a rare case of PHA combined with lens subluxation in China. After appropriate eye surgery, the patient achieved satisfying vision result in the right eye.


Assuntos
Hemiatrofia Facial , Subluxação do Cristalino , Facoemulsificação , Humanos , Feminino , Hemiatrofia Facial/complicações , Hemiatrofia Facial/diagnóstico , Hemiatrofia Facial/cirurgia , Pessoa de Meia-Idade , Subluxação do Cristalino/cirurgia , Subluxação do Cristalino/diagnóstico , Subluxação do Cristalino/etiologia , Implante de Lente Intraocular , Acuidade Visual/fisiologia
9.
J Cataract Refract Surg ; 50(8): 862-867, 2024 Aug 01.
Artigo em Inglês | MEDLINE | ID: mdl-38711217

RESUMO

PURPOSE: To investigate the extracellular matrix and cellular components in lens capsules extracted from patients with dead bag syndrome (DBS) through immunohistochemistry. SETTING: Department of Ophthalmology, Wakayama Medical University School of Medicine, Wakayama, Japan, and Department of Ophthalmology and Visual Sciences, John A. Moran Eye Center, University of Utah, Salt Lake City, Utah. DESIGN: Immunohistochemical experimental study. METHODS: 9 capsular bag specimens from DBS cases, as well as 2 control specimens from late-postoperative in-the-bag intraocular lens dislocation cases related to previous vitrectomy, pseudoexfoliation, and blunt trauma were included. They were processed for histopathology; unstained sections were obtained from each one and analyzed by immunohistochemistry targeting collagen type IV, laminin, vimentin, collagen type I, and fibronectin. RESULTS: Immunohistochemistry in DBS showed lens capsule stained for basement membrane components. The outer part of the anterior capsule that was split from the inner part was more markedly stained for type IV collagen as compared with the posterior part. Faint staining for fibrous posterior capsular opacification (PCO) components, for example, collagen type I and fibronectin, was detected in limited areas, but the major portion of the capsule was free from these components. Small spotty vimentin-positive materials, suggesting the presence of cell debris, were also detected in limited samples. CONCLUSIONS: Small amounts of fibrotic PCO components were detected in capsules extracted from patients with DBS, but their major parts were free from PCO components. Current findings suggest small amounts of lens epithelial cells were present after surgery and secreted fibrous components before undergoing cell death process.


Assuntos
Colágeno Tipo IV , Colágeno Tipo I , Fibronectinas , Cápsula do Cristalino , Vimentina , Humanos , Colágeno Tipo IV/metabolismo , Fibronectinas/metabolismo , Masculino , Vimentina/metabolismo , Idoso , Feminino , Cápsula do Cristalino/patologia , Cápsula do Cristalino/metabolismo , Pessoa de Meia-Idade , Colágeno Tipo I/metabolismo , Laminina/metabolismo , Subluxação do Cristalino/cirurgia , Subluxação do Cristalino/diagnóstico , Subluxação do Cristalino/metabolismo , Idoso de 80 Anos ou mais , Facoemulsificação , Síndrome de Exfoliação/metabolismo , Opacificação da Cápsula/metabolismo , Técnicas Imunoenzimáticas , Síndrome , Implante de Lente Intraocular , Adulto
10.
Jpn J Ophthalmol ; 68(3): 200-205, 2024 May.
Artigo em Inglês | MEDLINE | ID: mdl-38587787

RESUMO

PURPOSE: To evaluate the surgical outcomes of intrascleral intraocular lens (IOL) fixation using ab interno trabeculotomy (LOT) in patients with exfoliation glaucoma with lens subluxation. STUDY DESIGN: Retrospective case series. METHODS: Twenty eyes of 18 patients with exfoliation glaucoma and lens or IOL subluxations were included. Three success criteria were based on postoperative intraocular pressure (IOP) (A, ≤15 mmHg; B, ≤18 mmHg; C, ≤21 mmHg). The IOP, number of glaucoma medications, and visual acuity were compared before and after surgery. Success probability was analyzed using Kaplan-Meier survival curves. Cox proportional hazards' regression models were used to examine prognostic factors for surgical failure. RESULTS: The mean follow-up period was 23.4 ± 7.8 months. The mean IOP significantly decreased from 23.2 ± 6.8 mmHg preoperatively to 14.0 ± 4.4 mmHg at 1 year postoperative (P<0.001). Postoperative hyphema and vitreous hemorrhage were observed in seven and 15 eyes, respectively, and washout in the anterior chamber or vitreous cavity was performed in four eyes. Postoperative IOP spikes and hypotony were observed in four eyes each. Glaucoma reoperation was performed in two eyes. The success rates at 12 months were 65%, 85%, and 90% using criteria A, B, and C, respectively. The IOP at 1 month after surgery was a significant prognostic factor for surgical failure according to criterion A (hazard ratio: 1.08; P=0.034). CONCLUSION: Intrascleral IOL fixation combined with microhook LOT is a promising option in cases of exfoliation glaucoma with subluxated lens/IOL; however, the high rate of postoperative hyphema and vitreous hemorrhage should be noted.


Assuntos
Síndrome de Exfoliação , Pressão Intraocular , Implante de Lente Intraocular , Subluxação do Cristalino , Esclera , Trabeculectomia , Acuidade Visual , Humanos , Estudos Retrospectivos , Masculino , Feminino , Idoso , Esclera/cirurgia , Síndrome de Exfoliação/fisiopatologia , Síndrome de Exfoliação/cirurgia , Síndrome de Exfoliação/complicações , Trabeculectomia/métodos , Pressão Intraocular/fisiologia , Acuidade Visual/fisiologia , Subluxação do Cristalino/cirurgia , Subluxação do Cristalino/fisiopatologia , Subluxação do Cristalino/diagnóstico , Seguimentos , Pessoa de Meia-Idade , Implante de Lente Intraocular/métodos , Idoso de 80 Anos ou mais , Lentes Intraoculares , Resultado do Tratamento
11.
BMC Ophthalmol ; 24(1): 192, 2024 Apr 25.
Artigo em Inglês | MEDLINE | ID: mdl-38664661

RESUMO

BACKGROUND: Ectopia lentis is the dislocation of the natural crystalline lens and usually presents in the setting of trauma or other systemic diseases. Herein, we describe a case of an otherwise healthy four-year-old boy with isolated ectopia lentis whose partial lens dislocation was captured on a smartphone by the patient's father several days prior. CASE PRESENTATION: A four-year-old boy with no past medical, developmental, or trauma history presented with bilateral partial anterior lens dislocation with pupillary block. Initial ophthalmic evaluation two months prior was notable for uncorrected visual acuity at 20/100 OD, 20/250 OS, bilateral iridodenesis, and partially dislocated lenses inferonasally OD and inferiorly OS on slit lamp. Genetic testing found no abnormalities. Ten months later, the patient developed sudden onset of left eye pain. A dislocated lens and temporarily dilated left pupil were captured on a smartphone by the patient's father. He was evaluated 3 days later after a second episode and found to have hand motion vision OS, a fixed 8 mm left pupil with the crystalline lens subluxed into the pupil space and accompanying intraocular pressure OS of 40 mmHg. The lens was surgically removed with a limited anterior vitrectomy. Four and a half years after surgery, visual acuity was 20/125 OS with aphakic correction. The right eye eventually underwent prophylactic lensectomy and was 20/30 in aphakic correction. CONCLUSIONS: This report presents a unique presentation of isolated ectopia lentis with anterior lens dislocation and pupillary block and illustrates the role of smartphone photography in assisting in the triage of eye emergencies.


Assuntos
Ectopia do Cristalino , Subluxação do Cristalino , Distúrbios Pupilares , Humanos , Ectopia do Cristalino/diagnóstico , Ectopia do Cristalino/cirurgia , Masculino , Pré-Escolar , Subluxação do Cristalino/diagnóstico , Subluxação do Cristalino/cirurgia , Subluxação do Cristalino/etiologia , Distúrbios Pupilares/diagnóstico , Distúrbios Pupilares/etiologia , Acuidade Visual/fisiologia , Vitrectomia/métodos
12.
Rom J Ophthalmol ; 68(1): 25-30, 2024.
Artigo em Inglês | MEDLINE | ID: mdl-38617717

RESUMO

Background: In the popular fighting sport of boxing, opponents strike each other above the belt line in the face, chest, and belly. The physical parts most exposed are therefore the nose and eyes. In amateur boxing, fights go only three rounds - three minutes for men and one minute for women - with a one-minute break in between. They wear gloves, but the head protection used in the men's game has been removed by AIBA due to the high likelihood of concussion when using head protection. Because chronic ocular changes may take longer than the expected short-term effects, this study included at least 3 years of competitive sports participation. Study design and setting: Institutional-based cross-sectional study. Materials and methods: To evaluate ophthalmic outcomes, 200 eyes of 100 active amateur, adult, and competitive male boxers were studied. Results: Of the 100 boxers, 51 had ophthalmic changes in at least one eye, and 49 had normal eyes. The average age of boxers was 24.98 years. The average duration of boxing training was 7.04 years. Healed eyelid scars, subconjunctival hemorrhages, conjunctival papillae, traumatic mydriasis, posterior synechiae, angulation abnormalities, traumatic cataracts, lens subluxation, increased intraocular pressure, and peripapillary atrophy were observed on the ocular side. None of these could be attributed to boxing. Conclusion: Boxing-related eye injuries are common in India and the most common vision-threatening eye abnormalities include traumatic cataracts, lens subluxation, and angle abnormalities. Surprisingly, no macular lesions were found on physical examination and OCT. Additional studies with a larger number of boxers will be needed to evaluate and prevent clinical symptoms. All boxers should have a complete eye exam regularly. Abbreviations: AIBA = Association Internationale de Boxe Amateur, OCT = Optical Coherence Tomography.


Assuntos
Catarata , Anormalidades do Olho , Traumatismos Oculares , Subluxação do Cristalino , Adulto , Humanos , Feminino , Masculino , Adulto Jovem , Estudos Transversais , Índia/epidemiologia , Traumatismos Oculares/diagnóstico , Traumatismos Oculares/epidemiologia
13.
Ophthalmic Res ; 67(1): 248-256, 2024.
Artigo em Inglês | MEDLINE | ID: mdl-38527448

RESUMO

INTRODUCTION: This study aimed to determine the interchangeability of bilateral anterior chamber depth (ACD) in intraocular lens (IOL) power calculations for cataractous eyes and refractive outcomes using the unaffected fellow eye's ACD in subluxated crystalline lenses. METHODS: The predicted postoperative spherical equivalent (SE) calculated using the Kane formula with and without fellow eye's ACD in 202 cataract patients was compared. Refractive outcomes of the newer formulas (the Kane, Barrett Universal II [BUII], and Pearl-DGS formulas) with affected eye's ACD and with unaffected fellow eye's ACD were compared in 33 eyes with lens subluxation (the affected eye) undergoing in-the-bag IOL implantation. The SD of the prediction error (PE) was assessed using the heteroscedastic method. RESULTS: In 202 paired cataractous eyes, no marked ACD difference was found bilaterally; the predicted SE obtained without the fellow eye's ACD was comparable with that calculated with the fellow eye one (p = 0.90), with a mean absolute difference of 0.03 ± 0.03 D. With the affected eye AL, keratometry, and ACD, the median absolute error (MedAE) was 0.38-0.64 D, and the percentage of PE within ±0.50 D was 30.30-57.58%. The unaffected eye's ACD improved the results (MedAE, 0.35-0.49 D; the percentage of PE within ±0.50 D, 54.55-63.64%). The SDs of the BUII (0.82 D) and Pearl-DGS formulas (0.87 D) with the affected eye's ACD were significantly larger than those of the Kane and Pearl-DGS formulas (both 0.69 D) with the unaffected eye's ACD. CONCLUSION: Bilateral ACD was interchangeable in IOL power calculation for cataractous eyes when using the Kane formula. Unaffected eye's ACD in lieu of affected eye's ACD can enhance the accuracy of newer formulas in patients with unilateral subluxated lenses undergoing in-the-bag IOL implantation.


Assuntos
Câmara Anterior , Subluxação do Cristalino , Lentes Intraoculares , Refração Ocular , Humanos , Masculino , Feminino , Idoso , Refração Ocular/fisiologia , Pessoa de Meia-Idade , Subluxação do Cristalino/cirurgia , Subluxação do Cristalino/diagnóstico , Subluxação do Cristalino/fisiopatologia , Adulto , Acuidade Visual , Estudos Retrospectivos , Óptica e Fotônica , Implante de Lente Intraocular/métodos , Biometria/métodos , Idoso de 80 Anos ou mais
14.
Int Ophthalmol ; 44(1): 148, 2024 Mar 19.
Artigo em Inglês | MEDLINE | ID: mdl-38502381

RESUMO

PURPOSE: To investigate corneal biomechanical properties and its associations with the severity of lens dislocation in patients with Marfan syndrome. METHODS: A total of 30 patients with Marfan syndrome and 30 age-, sex- and axial length (AL)-matched controls were recruited. Corneal biomechanical parameters of both groups were measured by CorVis ST and were compared between groups. Potential associations between corneal biomechanical parameters and severity of lens dislocation were also investigated. RESULTS: Lower applanation 1 velocity (A1V) (0.13 ± 0.004 vs. 0.15 ± 0.003, P = 0.016), shorter applanation 2 time (A2T)(22.64 ± 0.11 vs. 22.94 ± 0.11, P = 0.013), longer peak distance (PD) (5.03 ± 0.07 vs. 4.81 ± 0.05, P = 0.008), longer radius (R) of highest concavity (7.44 ± 0.16 vs. 6.93 ± 0.14, P = 0.012), greater Ambrosio relational thickness horizontal (ARTh) (603 ± 20 vs. 498 ± 12, P < 0.001), and integrated radius (IR) (8.32 ± 0.25 vs. 8.95 ± 0.21, P = 0.033) were detected among Marfan eyes compared with controls (all P < 0.05). Marfan individuals with more severe lens dislocation tended to have increased stiffness parameter as longer A1T, slower A1V, shorter A2T, slower application 2 velocity (A2V), smaller PD and smaller Distance Amplitude (DA) (P < 0.05). CONCLUSION: Marfan patients were detected to have increased corneal stiffness compared with normal subjects. Corneal biomechanical parameters were significantly associated with the severity of lens dislocation in Marfan patients.


Assuntos
Subluxação do Cristalino , Síndrome de Marfan , Humanos , Síndrome de Marfan/complicações , Síndrome de Marfan/diagnóstico , Pressão Intraocular , Fenômenos Biomecânicos , Córnea , Subluxação do Cristalino/diagnóstico , Subluxação do Cristalino/etiologia , Tonometria Ocular
15.
Sci Rep ; 14(1): 6181, 2024 03 14.
Artigo em Inglês | MEDLINE | ID: mdl-38485976

RESUMO

This study aimed to compare the outcomes of flanged intraocular lens (IOL) fixation with new IOL exchange after dislocated IOL removal and repositioned dislocated IOL in patients with IOL dislocation. Eighty-nine eyes that underwent flanged IOL fixation were retrospectively included, with 51 eyes in the exchanged IOL group and 38 eyes in the repositioned IOL group. In both groups, best-corrected visual acuity (BCVA) improved at 1, 3, 6, and 12 months postoperatively and did not differ between the two groups at any of these time points. However, at 1 week postoperatively, BCVA in the repositioned IOL group improved compared with baseline, whereas that in the exchanged IOL group did not. Moreover, there were lesser changes in the corneal endothelial cell density (ECD) and corneal astigmatism in the repositioned IOL group than in the exchanged IOL group. The IOL positions, including IOL tilt and IOL decentration, were not different between the groups. Flanged IOL fixation with new IOL exchange and with repositioned dislocated IOL for patients with IOL dislocation had similar visual outcomes and IOL position. However, the latter had a smaller corneal ECD decrease and astigmatic change. This technique was effective in treating IOL dislocation while minimizing corneal injury.


Assuntos
Subluxação do Cristalino , Lentes Intraoculares , Humanos , Implante de Lente Intraocular/métodos , Estudos Retrospectivos , Acuidade Visual , Subluxação do Cristalino/cirurgia , Técnicas de Sutura , Complicações Pós-Operatórias/cirurgia
16.
BMC Ophthalmol ; 24(1): 66, 2024 Feb 14.
Artigo em Inglês | MEDLINE | ID: mdl-38355462

RESUMO

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.


Assuntos
Extração de Catarata , Doenças da Íris , Subluxação do Cristalino , Lentes Intraoculares , Facoemulsificação , Masculino , Humanos , Pessoa de Meia-Idade , Doenças da Íris/diagnóstico , Doenças da Íris/cirurgia , Iris/cirurgia , Facoemulsificação/métodos , Subluxação do Cristalino/diagnóstico , Subluxação do Cristalino/etiologia , Subluxação do Cristalino/cirurgia
17.
Sci Rep ; 14(1): 3368, 2024 02 09.
Artigo em Inglês | MEDLINE | ID: mdl-38336847

RESUMO

In this study, we described and discussed the late onset spontaneous posterior capsule rupture with intraocular lens (IOL) dislocation years after uncomplicated cataract surgery and implantation of hydrophobic acrylic IOLs. Eight patients presented with spontaneous posterior capsule rupture and IOL dislocation 5-20 years after uncomplicated phacoemulsification and IOL (AcrySof, Alcon, US) implantation. None of the patients had undergone posterior capsulotomy in the past. Four of the patients admitted habitual eye rubbing. An intact and well-centered continuous curvilinear capsulotomy edge was observed in all cases. IOLs were dislocated or displaced behind the anterior capsulotomy with a significant decrease in vision. A large rupture with a curled edge of the broken posterior capsule was visible. Dislocated IOLs were removed, and a three-piece IOL was inserted in the sulcus in six cases and suture fixated to the sclera in two cases. Improved vision was achieved in all cases. Although the mechanism underlying this late complication is unclear, habitual eye rubbing or IOL design may play a role. Further investigation is needed to prevent this complication in the future.


Assuntos
Extração de Catarata , Catarata , Subluxação do Cristalino , Lentes Intraoculares , Facoemulsificação , Humanos , Lentes Intraoculares/efeitos adversos , Implante de Lente Intraocular/efeitos adversos , Extração de Catarata/efeitos adversos , Facoemulsificação/efeitos adversos , Subluxação do Cristalino/complicações , Complicações Pós-Operatórias , Desenho de Prótese , Catarata/etiologia
18.
Ophthalmic Surg Lasers Imaging Retina ; 55(5): 293-298, 2024 May.
Artigo em Inglês | MEDLINE | ID: mdl-38270569

RESUMO

BACKGROUND AND OBJECTIVE: We describe an in-office lens repositioning technique for anterior crystalline lens dislocation. PATIENTS AND METHODS: We present a case series of four patients with spontaneous or traumatic anterior crystalline lens dislocation. RESULTS: The technique included supine patient positioning, gentle pressure with a cotton swab on the peripheral cornea to guide the lens into the posterior chamber, and the use of a miotic agent afterward to prevent subsequent subluxation. In the four cases described, the in-office technique successfully restored the lens to the posterior chamber, improved vision, and decreased intraocular pressure in most instances by resolving the angle closure secondary to pupillary block. CONCLUSIONS: The in-office lens repositioning technique is appropriate as an acute non-surgical intervention or temporizing measure for anterior crystalline lens dislocation. [Ophthalmic Surg Lasers Imaging Retina 2024;55:293-298.].


Assuntos
Subluxação do Cristalino , Cristalino , Humanos , Subluxação do Cristalino/cirurgia , Subluxação do Cristalino/diagnóstico , Masculino , Cristalino/lesões , Cristalino/cirurgia , Feminino , Adulto , Pessoa de Meia-Idade , Acuidade Visual , Procedimentos Cirúrgicos Ambulatórios/métodos , Procedimentos Cirúrgicos Oftalmológicos/métodos
19.
Acta Ophthalmol ; 102(3): 306-311, 2024 May.
Artigo em Inglês | MEDLINE | ID: mdl-37303305

RESUMO

PURPOSE: To investigate the inflammatory reaction in eyes with late in-the-bag intraocular lens (IOL) dislocation. METHODS: This prospective clinical study with fellow-eye comparison consists of 76 of the patients (76 eyes) with late in-the-bag IOL dislocation enrolled in the LION trial. The main outcome measure was anterior chamber flare before surgery measured with a laser flare meter in photon counts per millisecond (pc/ms). The dislocation was graded as 1 (small: optic still covering the visual axis), 2 (optic equator close to the visual axis) or 3 (optic decentred beyond the visual axis, but the IOL-capsule complex partly visible in the pupillary area). The secondary aim was to compare intraocular pressure (IOP) before surgery. RESULTS: Flare levels before surgery were significantly higher in the dislocation eyes than in the fellow eyes with a median flare of 21.5 (range 5.4-135.7) pc/ms versus 14.1 (2.0-42.9) pc/ms, respectively (p ˂ 0.001). A regression analysis of log-transformed flare values showed that the dislocation eyes had a non-significant tendency towards higher flare in dislocation grade 1 with a median flare of 24.6 (5.4-135.7) pc/ms compared to grade 2; 19.6 (6.5-41.5) pc/ms (p = 0.06), and no significant difference compared to grade 3; 19.4 (10.2-53.5) pc/ms (p = 0.47). The IOP was significantly higher in the dislocation eyes than in the fellow eyes (p ˂ 0.001). CONCLUSIONS: Eyes with late in-the-bag IOL dislocation had increased flare levels compared to their fellow eyes. This suggests that inflammation is part of the clinical picture of late in-the-bag IOL dislocation.


Assuntos
Oftalmopatias , Subluxação do Cristalino , Lentes Intraoculares , Humanos , Lentes Intraoculares/efeitos adversos , Estudos Prospectivos , Complicações Pós-Operatórias/cirurgia , Inflamação/diagnóstico , Inflamação/etiologia , Subluxação do Cristalino/cirurgia
20.
Eur J Ophthalmol ; 34(1): 300-303, 2024 Jan.
Artigo em Inglês | MEDLINE | ID: mdl-37728601

RESUMO

INTRODUCTION: To describe a novel surgical approach in the management of subluxated cataracts. METHODS: A 70-year-old Caucasian male with a subluxated cataract in the left eye was referred to our clinic at the Azienda Ospedaliero-Universitaria di Bologna- Ophthalmology Unit. The ophthalmic examination revealed a best-corrected visual acuity (BCVA) of 20/200 in the left eye with monocular diplopia and a severely subluxated NO6/NC6 cataract and the fundus examination did not reveal any vitreoretinal abnormalities. The right eye had 20/20 BCVA and was pseudophakic. After a 300° conjunctival peritomy, a single 25-gauge valved trocar 4 mm was inserted from the limbus in the inferotemporal quadrant, where the cataract was mainly dislocated and a corneal paracentesis to reduce the anterior chamber intraocular pressure was performed. Subsequently cohesive viscoelastic was progressively injected in the retrolental space through the trocar, to recenter and elevate the subluxated cataract. Thereafter, a complete centered capsulorhexis was performed, four capsular hooks were inserted to stabilize the bag, and complete phacoemulsification was performed with intact posterior capsular support. In the end, given the lack of capsular support elements such as the Cionni ring or Ahmed segment, a sutureless scleral fixated intraocular lens was implanted. RESULTS: One week after surgery, the BCVA was 20/25, and the final BCVA at 6 months was 20/20, without any complications. CONCLUSIONS: Retrolental cohesive ophthalmic viscoelastic injection could represent a novel effective surgical approach in recentering and elevating subluxated cataracts, facilitating the capsulorhexis, and reducing the risk of a pars plana approach.


Assuntos
Extração de Catarata , Catarata , Subluxação do Cristalino , Lentes Intraoculares , Facoemulsificação , Masculino , Humanos , Idoso , Implante de Lente Intraocular , Subluxação do Cristalino/cirurgia , Subluxação do Cristalino/complicações , Catarata/complicações
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