Corneal stroma demarcation line after standard and high-intensity collagen crosslinking determined with anterior segment optical coherence tomography

2014 ◽  
Vol 40 (5) ◽  
pp. 736-740 ◽  
Author(s):  
George D. Kymionis ◽  
Konstantinos I. Tsoulnaras ◽  
Michael A. Grentzelos ◽  
Argyro D. Plaka ◽  
Dimitrios G. Mikropoulos ◽  
...  
Keyword(s):  
Optical Coherence Tomography ◽  
High Intensity ◽  
Anterior Segment ◽  
Corneal Stroma ◽  
Optical Coherence ◽  
Demarcation Line ◽  
Collagen Crosslinking

Corneal Stromal Demarcation Line Determined With Anterior Segment Optical Coherence Tomography Following a Very High Intensity Corneal Collagen Cross-Linking Protocol

Cornea ◽  
2015 ◽  
Vol 34 (6) ◽  
pp. 664-667 ◽  
Author(s):  
George D. Kymionis ◽  
Konstantinos I. Tsoulnaras ◽  
Dimitrios A. Liakopoulos ◽  
Michael A. Grentzelos ◽  
Theodoros A. Paraskevopoulos ◽  
...  
Keyword(s):  
Optical Coherence Tomography ◽  
High Intensity ◽  
Anterior Segment ◽  
Cross Linking ◽  
Optical Coherence ◽  
Demarcation Line ◽  
Very High ◽  
Collagen Cross Linking ◽  
Corneal Collagen

scholarly journals Accidental Corneal Intrastromal Intraocular Lens Implantation with the Wound-Assisted Technique and Clinical Course with Anterior Segment Optical Coherence Tomography

2021 ◽  
pp. 283-287
Author(s):  
Jo Moriya ◽  
Shinichi Sakamoto ◽  
Satoru Inoda ◽  
Hidenori Takahashi ◽  
Hidetoshi Kawashima
Keyword(s):  
Optical Coherence Tomography ◽  
Intraocular Lens ◽  
Anterior Segment ◽  
Corneal Stroma ◽  
Age Related Macular Degeneration ◽  
Optical Coherence ◽  
Corrected Visual Acuity ◽  
Age Related ◽  
Intracameral Injection ◽  
Air Tamponade

Accidental intraocular lens (IOL) implantation into the corneal stroma is a rare clinical entity that can occur during the wound-assisted technique. In this report, we describe a case of an 81-year-old man who underwent cataract surgery in which the IOL was implanted into the corneal stroma with the wound-assisted technique, and we present changes in anterior segment optical coherence tomography. The IOL was removed and reinserted after widening the incision. Air tamponade was created by intracameral injection. An anterior chamber tap was performed 10 h later to reduce increased intraocular pressure. Interlayer separation of the corneal stroma was confirmed 30 min postoperatively but was corrected 4 days later. The patient’s best-corrected visual acuity (BCVA) was logMAR 0.30, and he had been diagnosed with age-related macular degeneration before surgery. Although the opacity of the corneal stroma persisted, BCVA improved to logMAR 0. When using the wound-assisted technique for IOL insertion, surgeons should take care not to implant the IOL into the corneal stroma.

Visibility and Depth of the Stromal Demarcation Line After Corneal Collagen Cross-Linking Using Anterior Segment Optical Coherence Tomography

Cornea ◽  
2018 ◽  
Vol 37 (5) ◽  
pp. 567-573 ◽  
Author(s):  
Louis Lhuillier ◽  
Cedric Ghetemme ◽  
Mathilde Boiché ◽  
Rekia Yahia ◽  
Naila Houmad ◽  
...  
Keyword(s):  
Optical Coherence Tomography ◽  
Anterior Segment ◽  
Cross Linking ◽  
Optical Coherence ◽  
Demarcation Line ◽  
Collagen Cross Linking ◽  
Corneal Collagen

Correlation of the Corneal Collagen Cross-Linking Demarcation Line Using Confocal Microscopy and Anterior Segment Optical Coherence Tomography in Keratoconic Patients

2014 ◽  
Vol 157 (1) ◽  
pp. 110-115.e1 ◽  
Author(s):  
George D. Kymionis ◽  
Michael A. Grentzelos ◽  
Argyro D. Plaka ◽  
Konstantinos I. Tsoulnaras ◽  
Vasilios F. Diakonis ◽  
...  
Keyword(s):  
Optical Coherence Tomography ◽  
Confocal Microscopy ◽  
Anterior Segment ◽  
Cross Linking ◽  
Optical Coherence ◽  
Demarcation Line ◽  
Collagen Cross Linking ◽  
Corneal Collagen

scholarly journals Anterior segment optical coherence tomography of intrastromal corneal cysts

2020 ◽  
Vol 17 (1) ◽  
pp. 41-44
Author(s):  
Deepmala Mazumdar ◽  
Barsha Lal ◽  
Rashima Asokan
Keyword(s):  
Optical Coherence Tomography ◽  
Anterior Segment ◽  
Corneal Stroma ◽  
Optical Coherence ◽  
Cyst Aspiration

We report a case of six-year-old boy who presented with a progressive intracorneal cyst in the left eye. Anterior segment optical coherence tomography (AS-OCT) was performed, and it showed the location of the cyst in the corneal stroma. Its dimension was measured to be 7.09 Å~ 2.12 mm. The cyst aspiration was successfully done. AS-OCT helped in the management and follow-up of the condition.

scholarly journals In Vivo Confocal Microscopy and Anterior Segment Optical Coherence Tomography Analysis of the Microcystic Keratitis

2020 ◽  
Vol 2020 ◽  
pp. 1-6
Author(s):  
Michał Dembski ◽  
Anna Nowińska ◽  
Klaudia Ulfik ◽  
Sławomir Teper ◽  
Edward Wylęgała
Keyword(s):  
Optical Coherence Tomography ◽  
Epithelial Cells ◽  
Confocal Microscopy ◽  
Corneal Epithelium ◽  
Anterior Segment ◽  
Corneal Stroma ◽  
Acute Stage ◽  
Optical Coherence ◽  
In Vivo Confocal Microscopy

Purpose. To describe the findings of in vivo confocal microscopy (IVCM) and anterior segment optical coherence tomography (AS-OCT) in a case of bilateral acute microcystic epitheliopathy after daily soft contact lens wear. Methods. IVCM and AS-OCT were used in the course of the bilateral epitheliopathy of a 23-year-old patient at the acute stage of the disease and at recovery after four days of treatment. The images were analyzed and compared. Results. On AS-OCT of the right eye, general hyperreflectivity and the increased thickness of the central corneal epithelium to 150 μm with numerous hyporeflective small, oval cysts were revealed and resolved completely at day 4 after diagnosis and treatment. AS-OCT scans of the left eye revealed oval shaped, hyperreflective material within the corneal epithelium. IVCM of both eyes showed numerous microcysts of different sizes filled with hyperreflective material mostly within superficial epithelial layers. Epithelial cells showed a polymorphism along with disruption of a cytoarchitecture. Basal epithelial cells and anterior stroma showed inflammatory changes. Posterior corneal stroma and endothelium presented normal morphology. Conclusions. Microcystic keratitis appeared as localized microcystic inflammation of epithelium on AS-OCT, which was confirmed by IVCM. Both IVCM and AS-OCT are helpful diagnostic instruments in case of cystic inflammation of corneal epithelium.

scholarly journals Evaluation of Ocular Surface Epithelial and Stromal Thicknesses in Psoriasis Using Anterior Segment Optical Coherence Tomography

2022 ◽  
Author(s):  
Ismail Ersan ◽  
Sevilay Kılıc ◽  
Selda Isık
Keyword(s):  
Optical Coherence Tomography ◽  
Anterior Segment ◽  
Corneal Stroma ◽  
Cross Sectional Study ◽  
Bulbar Conjunctiva ◽  
Optical Coherence ◽  
Control Groups ◽  
Cross Sectional ◽  
Central Cornea ◽  
And Control

Abstract Purpose: To evaluate the epithelial and stromal thicknesses of conjunctiva and cornea in psoriatic patients with anterior segment optical coherence tomography (AS-OCT),Methods: In this cross-sectional study, 61 patients with psoriasis and 42 age-matched, healthy individuals were enrolled. The epithelial and stromal thicknesses of both inferotemporal bulbar conjunctiva and central cornea were measured using AS-OCT. Results: Both the Tear break-up time and Schirmer-1 test values were significantly lower in the psoriasis group compared with the controls (p<0.05). The epithelial thickness of conjunctiva and cornea did not differ between psoriasis and control groups. (p>0.05) The central corneal stroma was significantly thicker in the psoriasis group (p=0.04). PASI was positively correlated with the thickness of central cornea stroma (r=0.442, p=0.006) in the nail psoriasis group. Conclusions: Psoriasis is not associated with altered epithelial thicknesses of the cornea and conjunctiva. It is accompanied by the stromal thickening of the cornea without conjunctival stromal involvement.

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