scholarly journals Ultrasonography and Ultrasound Biomicroscopy in Ophthalmology

2017 ◽  
pp. 75-80
Keyword(s):  
Cataract Surgery ◽  
Real Time ◽  
Anterior Segment ◽  
Ultrasound Biomicroscopy ◽  
Sound Waves ◽  
Significant Information ◽  
Screening Techniques ◽  
Basic Features ◽  
The Right ◽  
Biometric Information

In this review, we aimed to give information about the basic features of screening techniques and major indications of ultrasonography in ophthalmology. This is a cheap, modern visualization modality and provides images in real-time. Sound waves travel through the eye reflect and these echoes form a picture of the structure of the eye. It also measures the size of the eye. These measurements determine the right power of a lens implant before cataract surgery. In addition realtime images help clinicians to evaluate inside of the eye that cannot be seen directly. Ultrasound biomicroscopy provides diagnostically significant information about anterior segment structures (Anatomic or pathologic structures, crucial biometric information.).

scholarly journals Posterior Uveal Effusion after Cataract Surgery

2021 ◽  
pp. 62-67
Author(s):  
Annegret Abaza ◽  
Özlem Dikmetas ◽  
Irmingard Neuhann ◽  
Faik Gelisken
Keyword(s):  
Cataract Surgery ◽  
Corticosteroid Therapy ◽  
Anterior Segment ◽  
Subretinal Fluid ◽  
Posterior Pole ◽  
Functional Improvement ◽  
Long Term Observation ◽  
The Right ◽  
Uveal Effusion

We report a case of posterior uveal effusion (UE) with a long-term follow-up that has occurred following cataract surgery. A 64-year-old woman presented with diminished vision of the right eye (RE) 3 weeks after an uneventful phacoemulsification and intraocular lens implantation. Complete ophthalmic examination including fluorescein angiography (FA), indocyanine green angiography (ICGA), echography and optical coherence tomography (OCT) were performed. Best corrected visual acuity (BCVA) of the RE was 20/50. Anterior segment and intraocular pressure were unremarkable. OCT revealed prominent folds of the choroid and retina, subretinal fluid and darkening of the choroid with reduced visibility of the choroidal vessels and the scleral border. The left eye (LE) was unremarkable. BCVA of the LE was: 20/20. After topical anti-inflammatory and systemic corticosteroid therapy for 5 months, no morphological change of the macula was seen. The patient was observed without any treatment. Forty-three months after the cataract surgery and 38 months after cessation of the corticosteroid therapy, OCT revealed a normal macular morphology and the BCVA improved to 20/25. Even though rare, UE at the posterior pole may occur after modern cataract surgery. OCT examination is a reliable tool in monitoring the macular morphology. Since morphological and functional improvement can be seen in long-term, observation may be considered for some cases of posterior UE with resistance to the therapy.

Intraocular schwannoma with extrascleral extension

2020 ◽  
pp. 112067212092021
Author(s):  
Sanika Udyaver ◽  
Li-Anne S Lim ◽  
Tatyana Milman ◽  
Arman Mashayekhi ◽  
Jerry A Shields ◽  
...  
Keyword(s):  
Juvenile Idiopathic Arthritis ◽  
Anterior Segment ◽  
Subretinal Fluid ◽  
Ultrasound Biomicroscopy ◽  
Orange Pigment ◽  
Neoplastic Processes ◽  
Benign Schwannoma ◽  
S 100 ◽  
History Of ◽  
The Right

Purpose To report a rare case of intraocular schwannoma with extrascleral extension in a patient with juvenile idiopathic arthritis and to review the literature for this topic. Methods Case report. Results A 19-year-old male with a history of juvenile idiopathic arthritis was referred for diagnosis and management of an episcleral mass, initially thought to be focal nodular scleritis. The ocular surface of the right eye revealed an elevated amelanotic episcleral nodule inferonasally, with thin strands of overlying sclera, feeding episcleral vessels, and measuring 11 mm × 11 mm in diameter and 5 mm in thickness. Ophthalmoscopic examination revealed a minimally pigmented ciliochoroidal tumor measuring 13 mm in diameter and 11.4 mm in total thickness and without associated subretinal fluid, orange pigment, or drusen. Ultrasound biomicroscopy and anterior-segment optical coherence tomography confirmed a solid mass with scleral disruption and extraocular extension. Shave biopsy revealed palisading spindle cells and interspersed eosinophilic fibrillary cytoplasmic processes, forming Verocay bodies. The specimen stained positive for S-100 and negative for Melan-A, consistent with benign schwannoma. Observation was recommended. Conclusion Intraocular schwannoma is a rare, benign uveal tumor that can demonstrate extrascleral extension, mimicking inflammatory and malignant neoplastic processes. Clinical diagnosis is challenging, and tissue biopsy is required for definite diagnosis.

scholarly journals Iridotrabecular and Iridocorneal Contact Changes after Cataract Surgery and Endothelial Keratoplasty in Bilateral Iridoschisis

2021 ◽  
pp. 198-203
Author(s):  
Takashi Omoto ◽  
Chisato Agata ◽  
Reina Akiyama ◽  
Kohdai Kitamoto ◽  
Tetsuya Toyono ◽  
...  
Keyword(s):  
Cataract Surgery ◽  
Surgical Procedures ◽  
Vision Loss ◽  
Anterior Segment ◽  
Corneal Oedema ◽  
Endothelial Keratoplasty ◽  
Laser Iridotomy ◽  
Before And After ◽  
The Right ◽  
Endothelial Decompensation

We report a case of bilateral iridoschisis with corneal oedema and a quantitative evaluation of the changes in iridotrabecular and iridocorneal contact before and after cataract surgery and after Descemet stripping automated endothelial keratoplasty (DSAEK). A 76-year-old woman with iridoschisis and cataracts, previously managed with laser iridotomy, experienced progressive vision loss. The preoperative iridotrabecular contact (ITC) index measured by anterior segment optical coherence tomography was 23.6% in the right eye and 24.4% in the left eye. Preoperative corneal oedema in the right eye was more severe than that in the left eye. Cataract surgery, followed by DSAEK, was performed in the right eye and subsequently in the left eye. Her visual acuity improved postoperatively, and the corneal oedema of both eyes was treated successfully. Moreover, the ITC index improved in both eyes, to 4.7 and 6.9% after cataract surgery and to 0 and 0% after DSAEK in the right and left eyes, respectively. Staged cataract surgery and DSAEK were effective for endothelial decompensation caused by iridoschisis. Additionally, we confirm that iridotrabecular and iridocorneal contacts improved after both surgical procedures not only after cataract surgery but also after DSAEK. This case report showed the clinical usefulness of the ITC index in the detection of changes after different surgical procedures.

Interface fluid syndrome secondary to endothelial failure due to toxic anterior segment syndrome after cataract surgery

2018 ◽  
Vol 29 (3) ◽  
pp. NP1-NP4
Author(s):  
Burcu Kasım ◽  
Yusuf Koçluk ◽  
Ayşe Burcu
Keyword(s):  
Cataract Surgery ◽  
Cell Function ◽  
Anterior Segment ◽  
Laser In Situ Keratomileusis ◽  
Blurred Vision ◽  
Endothelial Cell Function ◽  
History Of ◽  
Toxic Anterior Segment Syndrome ◽  
The Right

Purpose: To present a case of previous laser in situ keratomileusis with interface fluid syndrome secondary to toxic anterior segment syndrome following cataract surgery. Case report: A 52-year-old woman, complaining blurred vision in her right eye for 18 months after cataract surgery, was referred to our clinic. She was diagnosed with toxic anterior segment syndrome, postoperatively, which resolved in 3 days. She had a history of laser in situ keratomileusis surgery 15 years ago. Slit-lamp examination of the right eye showed corneal haze, limited to laser in situ keratomileusis flap. The patient was diagnosed with interface fluid syndrome secondary to endothelial decompensation due to toxic anterior segment syndrome. Descemet’s membrane endothelial keratoplasy was performed along with full thickness fenestrations in the laser in situ keratomileusis flap to the right eye of the patient. The fluid was resolved in 1 week and visual acuity was improved rapidly. Conclusion: This case shows the importance of considering the diagnosis and determining the specific etiology of interface fluid syndrome, even years after the laser in situ keratomileusis surgery, when endothelial cell function has been compromised with any factor, such as intraocular surgery and its complications.

scholarly journals Bilateral Severe Sterile Inflammation with Hypopyon after Simultaneous Intravitreal Triamcinolone Acetonide and Aflibercept Injection in a Patient with Bilateral Marked Rubeosis Associated with Ocular Ischemic Syndrome

2017 ◽  
Vol 2017 ◽  
pp. 1-5
Author(s):  
Ceren Durmaz Engin ◽  
Ziya Ayhan ◽  
Süleyman Men ◽  
Aylin Yaman ◽  
A. Osman Saatci
Keyword(s):  
Cataract Surgery ◽  
Triamcinolone Acetonide ◽  
Anterior Segment ◽  
Visual Outcome ◽  
Sterile Inflammation ◽  
Prednisolone Acetate ◽  
Intravitreal Triamcinolone ◽  
Ocular Ischemic Syndrome ◽  
The Right ◽  
Ischemic Syndrome

We report the clinical course of a diabetic patient with bilateral cataract and rubeosis in association with ocular ischemic syndrome and initially treated him with simultaneous intravitreal 2 mg aflibercept and 2 mg triamcinolone acetonide injection at the same setting prior to planned cataract surgery and further photocoagulation. However, sterile anterior segment inflammation characterized by hypopyon occurred four days apart in OU. Right eye developed the sterile inflammation at the third postinjection day and the left eye developed the sterile inflammation at the seventh postinjection day (two days after the uneventful cataract surgery with intraocular lens implantation) without any pain or significant redness. Vitreous biopsy taken during the right phacovitrectomy was negative for any microbial contamination. Both eyes were treated successfully with intensive topical prednisolone acetate with a relatively good visual outcome. It is likely that underlying ocular ischemic syndrome might have facilitated the formation of sterile inflammation as blood-aqueous barrier disruption and flare have already been present.

scholarly journals Uveitis–glaucoma–hyphema syndrome with sclera-fixed posterior-chamber two-haptic intraocular lens in a highly myopic eye: a case report

2020 ◽  
Vol 20 (1) ◽  
Author(s):  
Yu Du ◽  
Xiangjia Zhu ◽  
Jin Yang ◽  
Yinglei Zhang ◽  
Lei Cai ◽  
...  
Keyword(s):  
Intraocular Lens ◽  
Direct Evidence ◽  
Bacterial Culture ◽  
Anterior Segment ◽  
Topical Administration ◽  
Ultrasound Biomicroscopy ◽  
Posterior Chamber ◽  
Blurred Vision ◽  
Case Presentation ◽  
The Right

Abstract Background We report a case of uveitis–glaucoma–hyphema (UGH) syndrome in a highly myopic pseudophakic eye with seemingly normal positioning of a two-haptic intraocular lens (IOL). Case presentation The patient was a 61-year-old woman suffering recurrent episodes of blurred vision, floaters, redness, elevated intraocular pressure (IOP), and pain in the right eye following implantation of a sclera-fixed IOL. The symptoms were alleviated by the systemic and topical administration of IOP-lowering and anti-inflammatory medications. A slit-lamp examination revealed depigmentation and atrophy of the iris, and a quiet anterior chamber in the right eye. Endophthalmitis caused by hypovirulent bacteria and UGH syndrome were both considered. Ultrasound biomicroscopy (UBM) and gonioscopy provided direct evidence of malpositioned IOL haptics, which pushed the root of the iris forward, resulting in persistent mechanical chaffing, the probable cause of UGH syndrome. IOL explantation resolved her symptoms. Negative bacterial culture results for the IOL excluded the possibility of endophthalmitis. Conclusions Heightened awareness of underlying UGH syndrome and prompt UBM are important when doctors encounter a patient with a sclera-fixed IOL suffering from recurrent anterior segment inflammation and elevated IOP.

Complex visualization of the anterior segment of the eye in the diagnosis, monitoring and treatment of angle closed disease

2021 ◽  
pp. 79-83
Author(s):  
G.А. Sharova ◽  
◽  
N.I. Kurysheva ◽  
◽  
◽  
...  
Keyword(s):  
Optical Coherence Tomography ◽  
Anterior Segment ◽  
Ultrasound Biomicroscopy ◽  
Angle Closure ◽  
Optical Coherence ◽  
Advantages And Disadvantages ◽  
Primary Angle Closure ◽  
Primary Angle Closure Glaucoma ◽  
The Right

The aim of this work is to review the literature on the role of anterior segment imaging in the diagnosis, monitoring, and treatment of primary angle closed disease. An analysis of the use of modern technical devices – optical coherence tomography of the anterior segment (ASOST), ultrasonic biomicroscopy, Scheimpflug camera – is presented, the advantages and disadvantages in comparison with gonioscopy are assessed. Visualization of the structures of the anterior segment of the eye is an important part of the strategy aimed at solving the problem of identifying risk factors, diagnosing, monitoring and evaluating the effectiveness of treatment of diseases of primary angle closure. Qualitative and quantitative analysis of data based on optical coherence tomography, ultrasound biomicroscopy, and Scheimflug camera data confirms high comparability with gonioscopy, but each of the methods complements each other. Conclusion. Visualization of the anterior segment of the eye is the standard in modern diagnostics and evaluation of the effectiveness of treatment of primary angle closure disease. Multimodal imaging improves the ability to accurately diagnose and choose the right treatment strategy. Key words: primary angle closure, primary angle-closure glaucoma, optical coherence tomography, ultrasound biomicroscopy, Scheimflug camera, gonioscopy.

scholarly journals Occult Spontaneous Ocular Perforation Presenting as Conjunctival Chemosis in a Patient with Marfan’s Syndrome

2019 ◽  
Vol 10 (3) ◽  
pp. 344-348
Author(s):  
Nafsika Voulgari ◽  
Clarice Giacuzzo ◽  
Ann Schalenbourg ◽  
George D. Kymionis
Keyword(s):  
Visual Acuity ◽  
Anterior Segment ◽  
Ultrasound Biomicroscopy ◽  
Marfan’S Syndrome ◽  
Marfan's Syndrome ◽  
Hypotony Maculopathy ◽  
Corrected Visual Acuity ◽  
Shallow Anterior Chamber ◽  
The Right ◽  
Best Corrected Visual Acuity

We report a case of occult spontaneous ocular perforation presenting as conjunctival chemosis in a patient with Marfan’s syndrome (MFS). A 38-year-old female with MFS presented with bilateral conjunctival chemosis since 6 months. Best-corrected visual acuity was 20/20 in both eyes. On slit-lamp examination, a diffuse conjunctival chemosis was observed in both eyes without any signs of ocular hypotony (decreased visual acuity, low intraocular pressure, shallow anterior chamber, pupil distortion, hypotony maculopathy, and chorioretinal folds). Anterior-segment optical coherence tomography revealed a corneoscleral fistula at the left nasal limbus, without any similar finding in the right eye. A scleral patch was performed at the site of the perforation. At 3 month’s follow-up, the left chemosis had regressed, with a stable best-corrected visual acuity in both eyes. However, on ultrasound biomicroscopy, another fistula at the right superior limbus was found, and the patient was referred for treatment with a scleral patch. In conclusion,conjunctival chemosis in a patient with MFS should raise the suspicion of an occult spontaneous ocular perforation.

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