Citation:Yang J,Wang LN,Yu RG,Hu LY,Gong X,Chen L,Hu BJ,Li XR,Li ZQ.Multimodal imaging of the carriers of choroideremia and X-linked retinitis pigmentosa.Int J Ophthalmol 2018;11(10):1721-1725,doi:10.18240/ijo.2018.10.23
Multimodal imaging of the carriers of choroideremia and X-linked retinitis pigmentosa
Received:August 07, 2017  Revised:May 07, 2018
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DOI:10.18240/ijo.2018.10.23
Key Words:mitochondrial optic neuropathies; perpapillary retinal fiber layer; retinal ganglion cell layer; visual function; Leber hereditary optic neuropathy; ethambutol-induced optic neuropathy
Fund Project:Supported by National Natural Science Foundation of China (No.81670875; No.81400412); Natural Science Foundation of Tianjin City (No.17JCYBJC27200; No.18JCQNJC10700; No.15JCZDJC34500); the Dr. Henry Norman Bethune LangMu Young Scientist Scholarship (BJ-LM2015008L).
                          
AuthorInstitution
Jin Yang Department of Neuro-ophthalmology and Medical Retinal, Tianjin Medical University Eye Hospital, Tianjin , China
Lin-Ni Wang Department of Neuro-ophthalmology and Medical Retinal, Tianjin Medical University Eye Hospital, Tianjin , China
Rong-Guo Yu Department of Neuro-ophthalmology and Medical Retinal, Tianjin Medical University Eye Hospital, Tianjin , China
Li-Ying Hu Department of Neuro-ophthalmology and Medical Retinal, Tianjin Medical University Eye Hospital, Tianjin , China
Xue Gong Department of Neuro-ophthalmology and Medical Retinal, Tianjin Medical University Eye Hospital, Tianjin , China
Lu Chen Department of Neuro-ophthalmology and Medical Retinal, Tianjin Medical University Eye Hospital, Tianjin , China
Bo-Jie Hu Department of Neuro-ophthalmology and Medical Retinal, Tianjin Medical University Eye Hospital, Tianjin , China
Xiao-Rong Li Department of Neuro-ophthalmology and Medical Retinal, Tianjin Medical University Eye Hospital, Tianjin , China
Zhi-Qing Li Department of Neuro-ophthalmology and Medical Retinal, Tianjin Medical University Eye Hospital, Tianjin , China
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Abstract:
      AIM: To evaluate the structural injure patterns in per papillary retinal fiber layer (pRNFL), retinal ganglion cell layer (RGCL) and their correlations to visual function in various mitochondrial optic neuropathies (MON) to offer help to their differential diagnosis.

    METHODS: Totally 32 MON patients (60 eyes) were recruited within 6 mo after clinical onsets, including 20 Leber hereditary optic neuropathy (LHON) patients (37 eyes), 12 ethambutol-induced optic neuropathy (EON) patients (23 eyes), and 41 age-gender matched healthy controls (HC, 82 eyes). All subjects had pRNFL and RGCL examinations with optic coherence tomography (OCT) and visual function tests.

    RESULTS: In the early stages of MON, the temporal pRNFL thickness decreased (66.09±22.57 μm), but increased in other quadrants, compared to HC (76.95±14.81 μm). The other quadrants remaining stable for LHON and EON patients besides the second hour sector of pRNFL thickness reduced and the temporal pRNFL decreased (56.78±15.87 μm) for EON. Total macular thickness in MON reduced remarkably (279.25±18.90 μm) (P=0.015), which mainly occurring in the inner circle (3 mm diameter of circle) and the nasal temporal sectors in the outer circle (5.5 mm diameter of circle), in contrast to those in HC. RGCL thickness reduced in each sector of the macula (61.90±8.73 μm) (P≤0.001). It strongly shows the correlationship of best corrected visual acuity (R=0.50, P=0.0003) and visual field injury (R=0.54, P=0.0002) in MON patients.

    CONCLUSION: OCT is a potential tool for detecting structural alterations in the optic nerves of various MON. Different types of MON may have different damage patterns.

PMC FullText Html:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6192969/
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