Evaluation of Objective Vitritis Grading Method Using Optical Coherence Tomography: Influence of Phakic Status and Previous Vitrectomy

Purpose To evaluate a proposed method for objective measurement of vitreous inflammation using a spectral-domain optical coherence tomography (SD OCT) device in a large cohort of uveitis eyes, including pseudophakic eyes and vitrectomized eyes. Design Retrospective, observational cohort study. Metho...

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Veröffentlicht in:American journal of ophthalmology 2016-01, Vol.161, p.172-180.e4
Hauptverfasser: Zarranz-Ventura, Javier, Keane, Pearse A, Sim, Dawn A, Llorens, Victor, Tufail, Adnan, Sadda, Srinivas R, Dick, Andrew D, Lee, Richard W, Pavesio, Carlos, Denniston, Alastair K, Adan, Alfredo
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container_end_page 180.e4
container_issue
container_start_page 172
container_title American journal of ophthalmology
container_volume 161
creator Zarranz-Ventura, Javier
Keane, Pearse A
Sim, Dawn A
Llorens, Victor
Tufail, Adnan
Sadda, Srinivas R
Dick, Andrew D
Lee, Richard W
Pavesio, Carlos
Denniston, Alastair K
Adan, Alfredo
description Purpose To evaluate a proposed method for objective measurement of vitreous inflammation using a spectral-domain optical coherence tomography (SD OCT) device in a large cohort of uveitis eyes, including pseudophakic eyes and vitrectomized eyes. Design Retrospective, observational cohort study. Methods One hundred five uveitis eyes (105 patients) with different vitreous haze score grades according to standardized protocols and corresponding SD OCT images (Cirrus HD-OCT; Carl Zeiss Meditec, Dublin, California, USA) were included. Clinical data recorded included phakic status, previous vitreoretinal surgery, and anterior chamber (AC) cells and flare. SD OCT images were analyzed using custom software that provided absolute measurements of vitreous (VIT) and retinal pigment epithelium (RPE) signal intensities, which were compared to generate a relative optical density ratio with arbitrary units (VIT/RPE-relative intensity) and compared to VHS. Results VIT/RPE-relative intensity showed a significant positive correlation with vitreous haze score ( r  = 0.535, P < .001) that remained significant after adjusting for factors governing media clarity, such as AC cells, AC flare, and phakic status (R2 -adjusted = 0.424, P < .001). Significant differences were also observed between the different vitreous haze score groups ( P < .001). Preliminary observation did not observe differences in VIT/RPE-relative intensity values between phakic and pseudophakic eyes (0.3522 vs 0.3577, P  = .48) and between nonvitrectomized and vitrectomized eyes (0.3540 vs 0.3580, P  = .52), overall and respectively for each vitreous haze score subgroup. Conclusions VIT/RPE-relative intensity values provide objective measurements of vitreous inflammation employing an SD OCT device. Phakic status and previous vitrectomy surgery do not appear to influence these values, although these preliminary findings need validation in future studies.
doi_str_mv 10.1016/j.ajo.2015.10.009
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Design Retrospective, observational cohort study. Methods One hundred five uveitis eyes (105 patients) with different vitreous haze score grades according to standardized protocols and corresponding SD OCT images (Cirrus HD-OCT; Carl Zeiss Meditec, Dublin, California, USA) were included. Clinical data recorded included phakic status, previous vitreoretinal surgery, and anterior chamber (AC) cells and flare. SD OCT images were analyzed using custom software that provided absolute measurements of vitreous (VIT) and retinal pigment epithelium (RPE) signal intensities, which were compared to generate a relative optical density ratio with arbitrary units (VIT/RPE-relative intensity) and compared to VHS. Results VIT/RPE-relative intensity showed a significant positive correlation with vitreous haze score ( r  = 0.535, P &lt; .001) that remained significant after adjusting for factors governing media clarity, such as AC cells, AC flare, and phakic status (R2 -adjusted = 0.424, P &lt; .001). Significant differences were also observed between the different vitreous haze score groups ( P &lt; .001). Preliminary observation did not observe differences in VIT/RPE-relative intensity values between phakic and pseudophakic eyes (0.3522 vs 0.3577, P  = .48) and between nonvitrectomized and vitrectomized eyes (0.3540 vs 0.3580, P  = .52), overall and respectively for each vitreous haze score subgroup. Conclusions VIT/RPE-relative intensity values provide objective measurements of vitreous inflammation employing an SD OCT device. Phakic status and previous vitrectomy surgery do not appear to influence these values, although these preliminary findings need validation in future studies.</description><identifier>ISSN: 0002-9394</identifier><identifier>EISSN: 1879-1891</identifier><identifier>DOI: 10.1016/j.ajo.2015.10.009</identifier><identifier>PMID: 26476212</identifier><identifier>CODEN: AJOPAA</identifier><language>eng</language><publisher>United States: Elsevier Inc</publisher><subject>Adult ; Anterior Chamber - pathology ; Cirurgia ocular ; Eye Diseases - classification ; Eye Diseases - diagnosis ; Eye surgery ; FDA approval ; Female ; Humans ; Inflammation ; Inflammation - classification ; Inflammation - diagnosis ; Lens, Crystalline - physiopathology ; Macular degeneration ; Male ; Middle Aged ; Oftalmopaties ; Ophthalmology ; Ophthalmopathies ; Patients ; Pseudophakia - physiopathology ; Quantitative analysis ; Retinal Pigment Epithelium - pathology ; Retrospective Studies ; Surgery ; Tomography, Optical Coherence - methods ; Uveitis - complications ; Visual Acuity ; Vitrectomy ; Vitreous Body - pathology</subject><ispartof>American journal of ophthalmology, 2016-01, Vol.161, p.172-180.e4</ispartof><rights>Elsevier Inc.</rights><rights>2016 Elsevier Inc.</rights><rights>Copyright © 2016 Elsevier Inc. 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Design Retrospective, observational cohort study. Methods One hundred five uveitis eyes (105 patients) with different vitreous haze score grades according to standardized protocols and corresponding SD OCT images (Cirrus HD-OCT; Carl Zeiss Meditec, Dublin, California, USA) were included. Clinical data recorded included phakic status, previous vitreoretinal surgery, and anterior chamber (AC) cells and flare. SD OCT images were analyzed using custom software that provided absolute measurements of vitreous (VIT) and retinal pigment epithelium (RPE) signal intensities, which were compared to generate a relative optical density ratio with arbitrary units (VIT/RPE-relative intensity) and compared to VHS. Results VIT/RPE-relative intensity showed a significant positive correlation with vitreous haze score ( r  = 0.535, P &lt; .001) that remained significant after adjusting for factors governing media clarity, such as AC cells, AC flare, and phakic status (R2 -adjusted = 0.424, P &lt; .001). Significant differences were also observed between the different vitreous haze score groups ( P &lt; .001). Preliminary observation did not observe differences in VIT/RPE-relative intensity values between phakic and pseudophakic eyes (0.3522 vs 0.3577, P  = .48) and between nonvitrectomized and vitrectomized eyes (0.3540 vs 0.3580, P  = .52), overall and respectively for each vitreous haze score subgroup. Conclusions VIT/RPE-relative intensity values provide objective measurements of vitreous inflammation employing an SD OCT device. 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Design Retrospective, observational cohort study. Methods One hundred five uveitis eyes (105 patients) with different vitreous haze score grades according to standardized protocols and corresponding SD OCT images (Cirrus HD-OCT; Carl Zeiss Meditec, Dublin, California, USA) were included. Clinical data recorded included phakic status, previous vitreoretinal surgery, and anterior chamber (AC) cells and flare. SD OCT images were analyzed using custom software that provided absolute measurements of vitreous (VIT) and retinal pigment epithelium (RPE) signal intensities, which were compared to generate a relative optical density ratio with arbitrary units (VIT/RPE-relative intensity) and compared to VHS. Results VIT/RPE-relative intensity showed a significant positive correlation with vitreous haze score ( r  = 0.535, P &lt; .001) that remained significant after adjusting for factors governing media clarity, such as AC cells, AC flare, and phakic status (R2 -adjusted = 0.424, P &lt; .001). Significant differences were also observed between the different vitreous haze score groups ( P &lt; .001). Preliminary observation did not observe differences in VIT/RPE-relative intensity values between phakic and pseudophakic eyes (0.3522 vs 0.3577, P  = .48) and between nonvitrectomized and vitrectomized eyes (0.3540 vs 0.3580, P  = .52), overall and respectively for each vitreous haze score subgroup. Conclusions VIT/RPE-relative intensity values provide objective measurements of vitreous inflammation employing an SD OCT device. Phakic status and previous vitrectomy surgery do not appear to influence these values, although these preliminary findings need validation in future studies.</abstract><cop>United States</cop><pub>Elsevier Inc</pub><pmid>26476212</pmid><doi>10.1016/j.ajo.2015.10.009</doi><tpages>9</tpages><orcidid>https://orcid.org/0000-0003-2338-8143</orcidid><oa>free_for_read</oa></addata></record>
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subjects Adult
Anterior Chamber - pathology
Cirurgia ocular
Eye Diseases - classification
Eye Diseases - diagnosis
Eye surgery
FDA approval
Female
Humans
Inflammation
Inflammation - classification
Inflammation - diagnosis
Lens, Crystalline - physiopathology
Macular degeneration
Male
Middle Aged
Oftalmopaties
Ophthalmology
Ophthalmopathies
Patients
Pseudophakia - physiopathology
Quantitative analysis
Retinal Pigment Epithelium - pathology
Retrospective Studies
Surgery
Tomography, Optical Coherence - methods
Uveitis - complications
Visual Acuity
Vitrectomy
Vitreous Body - pathology
title Evaluation of Objective Vitritis Grading Method Using Optical Coherence Tomography: Influence of Phakic Status and Previous Vitrectomy
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