Commentary: Clinical outcome of a nonvalved Aurolab aqueous drainage implant in posterior segment versus anterior chamber

In 1975, our team encountered several cases of severe inflammatory eye disease presenting as a white pupil in a red eye with rapid loss of vision. The eyes became soft within a few days with shallow anterior chamber which we called “Malignant Hypotension” in view of the latter’s sinister significance. Unilaterally, little or no pain, predominantly affecting children and difficulty in dilating the pupil and keeping it dilated were some of the other important features. Posterior segment was not visible due to massive exudation in vitreous. Microbiological investigations of aqueous humor did not retrieve any bacterial or fungal organisms. All eyes became pthisical in few weeks despite treatment with topical and subconjunctival antibiotics and steroids. Similar cases appeared again after two years in 1977 with identical presentation and outcome. Both out breaks began during September and lasted until about January- the next year.

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Long term clinical outcome of a randomised controlled trial of anterior chamber lenses after high volume intracapsular cataract surgery

British Journal of Ophthalmology ◽

10.1136/bjo.85.1.11 ◽

2001 ◽

Vol 85 (1) ◽

pp. 11-17 ◽

Cited By ~ 10

Author(s):

A Hennig

Keyword(s):

Randomised Controlled Trial ◽

Clinical Outcome ◽

Cataract Surgery ◽

Anterior Chamber ◽

Controlled Trial ◽

High Volume ◽

Randomised Controlled

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Spontaneous levitation of dropped nucleus on first post-operative day

SAGE Open Medical Case Reports ◽

10.1177/2050313x17708713 ◽

2017 ◽

Vol 5 ◽

pp. 2050313X1770871

Author(s):

Mayuresh P Naik ◽

Harindersingh Sethi ◽

Anuj Mehta ◽

Abhinav Bhalla ◽

Komal Saluja

Keyword(s):

Visual Acuity ◽

Anterior Chamber ◽

Posterior Segment ◽

Vitreous Cavity ◽

Fundus Examination ◽

Anterior Vitrectomy ◽

Retinal Tear ◽

Corrected Visual Acuity ◽

Grade Iii ◽

Best Corrected Visual Acuity

A 60-year-old male patient presenting with gradual painless progressive diminution of vision was diagnosed with nuclear sclerosis grade III (LOCS). Intra-operatively, there was a nuclear drop into the vitreous cavity. The patient was left aphakic and was deferred for further vitreoretinal procedure the next day. On first post-op day, the nucleus fragment (of roughly the same size that had dropped into the vitreous) was seen in the anterior chamber. A gentle ultrasonography B-Scan done for posterior segment evaluation was anechoic. Incision was enlarged and viscoexpression of the nucleus fragment was done followed by thorough anterior vitrectomy. Post-operatively, dilated full fundus examination showed clear vitreous cavity without any evidence of retinal tear or detachment. This was later confirmed by an anechoic ultrasonography B-Scan. After 2 weeks, three-piece foldable IOL was placed in the sulcus with posterior optic capture and the patient attained a best-corrected visual acuity of 6/9P.

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Partitioning an Artificial Anterior Chamber With a Latex Diaphragm to Simulate Anterior and Posterior Segment Pressure Dynamics

Cornea ◽

10.1097/ico.0000000000001435 ◽

2018 ◽

Vol 37 (2) ◽

pp. 263-266 ◽

Cited By ~ 3

Author(s):

Christopher S. Sáles ◽

Michael D. Straiko ◽

Ana Alzaga Fernandez ◽

Kelly Odell ◽

Philip K. Dye ◽

...

Keyword(s):

Anterior Chamber ◽

Posterior Segment ◽

Pressure Dynamics

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Hand held optical coherence tomography probe for simultaneous anterior chamber and posterior segment imaging using a single light source (Conference Presentation)

Optical Coherence Tomography and Coherence Domain Optical Methods in Biomedicine XXIII ◽

10.1117/12.2511550 ◽

2019 ◽

Author(s):

Ryan P. McNabb ◽

Gar Waterman ◽

Al-Hafeez Z. Dhalla ◽

Moseph Jackson-Atogi ◽

Pablo Ortiz ◽

...

Keyword(s):

Optical Coherence Tomography ◽

Anterior Chamber ◽

Light Source ◽

Posterior Segment ◽

Optical Coherence

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Descemet’s Stripping-Automated Endothelial Keratoplasty for Traumatic Aniridia and Aphakia

Case Reports in Ophthalmological Medicine ◽

10.1155/2012/982657 ◽

2012 ◽

Vol 2012 ◽

pp. 1-4 ◽

Cited By ~ 1

Author(s):

Sabah S. Jastaneiah

Keyword(s):

Anterior Chamber ◽

Case Reports ◽

Young Male ◽

Corneal Edema ◽

Posterior Segment ◽

Successful Outcome ◽

Endothelial Keratoplasty ◽

The Stability ◽

Lens Power ◽

Two Stages

This Interventional case reports a challenging case of descemet’s stripping-automated endothelial keratoplasty (DSAEK) in a young male patient with traumatic aniridia, aphakia, and corneal edema. Surgery was planned in two stages; first was implantation of aniridia intraocular lens (AIOL), few months later, DSAEK procedure was performed. Successful outcome of both procedures was achieved as measured by the stability of the AIOL, clarity of the cornea, attachment of the lenticule, and improvement in vision. Aniridia implant supports a sufficient amount of air in the anterior chamber especially if the posterior segment is well formed, while providing the required lens power to improve vision. DSAEK procedure challenges that include iris defects and aphakia may be overcome by stepwise planning of the procedure.

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Evaluation of ocular biometric parameters in keratoconic eyes relative to healthy myopic eyes

European Journal of Ophthalmology ◽

10.1177/11206721211064481 ◽

2021 ◽

pp. 112067212110644

Author(s):

Ayşe Yağmur Kanra ◽

Haşim Uslu

Keyword(s):

Anterior Chamber ◽

Statistical Method ◽

Axial Length ◽

Central Corneal Thickness ◽

Corneal Thickness ◽

Anterior Chamber Depth ◽

Posterior Segment ◽

Biometric Parameters ◽

Lens Thickness ◽

Biometric Features

Objective To assess the biometric features of keratoconic eyes using the Lenstar LS900 and Pentacam systems relative to healthy myopic eyes. Materials and Methods Seventy-three eyes of keratoconic subjects and 83 eyes of control subjects were enrolled. To evaluate the reproducibility of the Lenstar and Pentacam devices’ measurements, keratometric readings [in flattest meridian (Kf), in steepest meridian (Ks), and mean (Km)], central corneal thickness (CCT), and anterior chamber depth (ACD) were obtained using both systems. Axial length and lens thickness (LT) were measured by the Lenstar. The compatibility between the two devices was investigated using the Bland-Altman statistical method. Results Axial length was longer in the myopic group than in eyes with keratoconus (24.94 ± 0.7 and 23.88 ± 0.96 mm, respectively, p < 0.001). LT and vitreous depth were also higher in the myopic group, although ACD values were similar. Compared to the Lenstar, the Pentacam measured the ACD and CCT values higher in the myopia group [with a difference of 0.07 ± 0.12 mm ( p <0.001) and 4.47 ± 11.33 µm ( p = 0.001), respectively] and measured the CCT values higher in the keratoconus group. Pentacam found all keratometry values significantly lower than Lenstar in the keratoconus group. Conclusions Axial length was longer in the myopic eyes due to the differences starting from the lens and extending to the posterior segment. Lenstar and Pentacam can be used interchangeably for Km, Kf, and ACD in the myopic group and only for ACD in the keratoconus group.

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The Role of Optical Coherence Tomography in the Diagnosis of Angle Closed Diseases of the Anterior Chamber. Part 2: Visualization of the Posterior Segment of the Eye

Ophthalmology in Russia ◽

10.18008/1816-5095-2021-3-381-388 ◽

2021 ◽

Vol 18 (3) ◽

pp. 381-388

Author(s):

N. I. Kurysheva ◽

G. А. Sharova

Keyword(s):

Optical Coherence Tomography ◽

Anterior Chamber ◽

Anterior Segment ◽

Posterior Segment ◽

Angle Closure ◽

Eye Drops ◽

Optical Coherence ◽

Primary Angle Closure ◽

Closed Angle

The purpose of this work is to review the literature data on the role of optical coherence tomography in the diagnosis of diseases of the closed angle of the anterior chamber. The analysis of the use of modern technical devices — optical coherence tomography of the posterior segment, models with a frequency-modulated source (Swept Source) is presented. The emergence of new imaging technologies such as SS-OCT contributes to understanding the pathogenesis of primary angle closure diseases in terms of involvement of the choroid in the process. A thicker choroid in the macular area may be an anatomical risk factor for closed angle disease. The expansion of an abnormally thick choroid in combination with the structural features of the anterior segment in eyes with a short axial length, including against the background of psychoemotional stress, can lead to an attack of angle closure. Visualization of the structures of the posterior 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 data analysis based on optical coherence tomography significantly increases the diagnostic accuracy, allows to determine its progression and to predict its course. This plays a key role in the choice of treatment tactics for the anterior chamber angle closure. The review considers the effect of local antihypertensive eye drops on the choroid.Conclusion. Optical coherence tomography is a standard in modern diagnostics and evaluation of the effectiveness of treatment of diseases of primary angle closure, allowing a better understanding of the pathogenesis of the disease and its complex nature. Imaging improves the ability to accurately diagnose and choose the right treatment strategy.

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