1.Not Available.
Dong mei LIU ; Mao wen WANG ; Wen tao XIA
Journal of Forensic Medicine 2021;37(5):711-713
2.Alice-in-Wonderland syndrome as first presentation of migraine in a child.
Ning LI ; Fei-Yong JIA ; Lin DU ; Hui-Yi JIANG ; Hong-Hua LI ; Jun-Yan FENG
Chinese Journal of Contemporary Pediatrics 2012;14(11):881-882
Adolescent
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Humans
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Male
;
Migraine Disorders
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complications
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Syndrome
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Vision Disorders
;
etiology
4.Wernicke-Korsakoff Syndrome Associated with Hyperemesis Gravidarum.
Chang Kyoon YOON ; Moo Hwan CHANG ; Dong Cho LEE
Korean Journal of Ophthalmology 2005;19(3):239-242
PURPOSE: The authors hereby describe a case of Wernicke-Korsakoff syndrome with accompanying ocular findings that is caused by hyperernesis gravidarum. METHODS: We experienced a 27-year-old female at 12 weeks of pregnancy, who visited our clinic because of weight loss, gait disturbance, decreased mentality and dizziness after prolonged vomiting for 2 months. Neurological examination demonstrated ataxia of gait and loss of orientation. Ophthalmologic examination showed decreased visual acuity, upbeat nystagmus, diplopia and retinal hemorrhage. RESULTS: We report a relatively rare case of Wernicke-Korsakoff syndrome with ophthalmic symptoms induced by hyperemesis gravidarum. CONCLUSIONS: If a pregnant women has symptoms of severe vomiting along with other ocular findings such as retinal hemorrhage or restricted extraocular movement, one must suspect the diagnosis of Wernicke-Korsakoff syndrome, and should start appropriate treatment immediately.
Vision Disorders/*etiology
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*Pregnancy Complications
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Pregnancy
;
Korsakoff Syndrome/*etiology/*physiopathology
;
*Hyperemesis Gravidarum
;
Humans
;
Female
;
Eye Diseases/*etiology
;
Adult
5.Retinal Artery Occlusion in a Healthy Pregnant Patient.
Yoo Ri CHUNG ; Jun Bum KIM ; Kihwang LEE ; Ho Min LEW
Korean Journal of Ophthalmology 2008;22(1):70-71
PURPOSE: We report a case of branch retinal artery occlusion (BRAO) in a healthy pregnant woman. METHODS: A 29-year-old pregnant woman presented with decreased vision in her left eye. She had a pale retina with macular edema consistent with BRAO. An extensive workup was performed to determine an etiologic factor. All test results were within normal limits except for her factor VIII activity. Her visual acuity improved from finger counting to 20/30 over 2 months without any treatment. RESULTS: This case suggests that BRAO can occur in healthy patients without any systemic or ocular disorders. CONCLUSIONS: BRAO can occur in healthy patients without any systemic or ocular disorders, despite an extensile evaluation.
Adult
;
Factor VIII/analysis
;
Female
;
Humans
;
Macular Edema/etiology
;
Pregnancy
;
*Pregnancy Complications, Hematologic
;
Retinal Artery Occlusion/*etiology
;
Vision Disorders/etiology
6.Retinal Artery Occlusion in a Healthy Pregnant Patient.
Yoo Ri CHUNG ; Jun Bum KIM ; Kihwang LEE ; Ho Min LEW
Korean Journal of Ophthalmology 2008;22(1):70-71
PURPOSE: We report a case of branch retinal artery occlusion (BRAO) in a healthy pregnant woman. METHODS: A 29-year-old pregnant woman presented with decreased vision in her left eye. She had a pale retina with macular edema consistent with BRAO. An extensive workup was performed to determine an etiologic factor. All test results were within normal limits except for her factor VIII activity. Her visual acuity improved from finger counting to 20/30 over 2 months without any treatment. RESULTS: This case suggests that BRAO can occur in healthy patients without any systemic or ocular disorders. CONCLUSIONS: BRAO can occur in healthy patients without any systemic or ocular disorders, despite an extensile evaluation.
Adult
;
Factor VIII/analysis
;
Female
;
Humans
;
Macular Edema/etiology
;
Pregnancy
;
*Pregnancy Complications, Hematologic
;
Retinal Artery Occlusion/*etiology
;
Vision Disorders/etiology
7.Characteristics of Visual Evoked Potential in Different Parts of Visual Impairment.
Ding-Kun DAI ; Li YANG ; Huan-Huan MENG ; Xi-Ping CHEN ; Lu-Yang TAO
Journal of Forensic Medicine 2021;37(5):632-638
OBJECTIVES:
To study the quantitative and qualitative differences of visual evoked potential (VEP) in monocular visual impairment after different parts of visual pathway injury.
METHODS:
A total of 91 subjects with monocular visual impairment caused by trauma were selected and divided into intraocular refractive media-injury group (eyeball injury group for short), optic nerve injury group, central nervous system injury and intracranial combined injury group according to the injury cause and anatomical segment. Pattern Reversal visual evoked potential (PR-VEP) P100 peak time and amplitude, Flash visual evoked potential (F-VEP) P2 peak time and amplitude were recorded respectively. SPSS 26.0 software was used to analyze the differences of quantitative (peak time and amplitude) and qualitative indexes (spatial frequency sweep-VEP acuity threshold, and abnormal waveform category and frequency) of the four groups.
RESULTS:
Compared with healthy eyes, the PR-VEP P100 waveforms of the intraocular eyeball injury group and the F-VEP P2 waveforms of the optic nerve group showed significant differences in prolonged peak time and decreased amplitude in injured eyes (P<0.05). The PR-VEP amplitudes of healthy eyes were lower than those of injured eyes at multiple spatial frequencies in central nervous system injury group and intracranial combined injury group (P<0.05).The amplitude of PR-VEP in patients with visual impairment involving central injury was lower than that in patients with eye injury at multiple spatial frequencies. The frequency of VEP P waveforms reaching the threshold of the intraocular injury group and the optic nerve injury group were siginificantly different from the intracranial combined injury group, respectively(P<0.008 3), and the frequency of abnormal reduction of VEP amplitude of threshold were significantly different from the central nervous system injury group, respectively(P<0.008 3).
CONCLUSIONS
VEP can distinguish central injury from peripheral injury, eyeball injury from nerve injury in peripheral injury, but cannot distinguish simple intracranial injury from complex injury, which provides basic data and basis for further research on the location of visual impairment injury.
Evoked Potentials, Visual
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Eye
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Humans
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Optic Nerve
;
Optic Nerve Injuries
;
Vision Disorders/etiology*
8.Efficacy of measuring visual performance of LASIK patients under photopic and mesopic conditions.
Wilfred TANG ; Wee-Jin HENG ; Hung-Ming LEE ; Han-Bor FAM ; Nai-Shin LAI
Annals of the Academy of Medicine, Singapore 2006;35(8):541-546
INTRODUCTIONThe aim of the study was to compare the visual performance of LASIK eyes measured using high-contrast logMAR letter charts under bright (photopic) and dim (mesopic) conditions.
MATERIALS AND METHODSA total of 46 subjects (35 +/- 8 years of age) undergoing LASIK procedures were recruited for the study. The best spectacle-corrected visual acuity (BSCVA) of each subject was measured using the high-contrast ETDRS logMAR chart under photopic and mesopic conditions at 3 visits: preoperative (Pre), 1 month postoperative (Post1) and 3 months postoperative (Post3). The differences in logMAR scores for the right eyes only were analysed for the Pre-Post1 (n = 46), Pre-Post3 (n = 18) and Post1-Post3 (n = 16) comparisons.
RESULTSThe logMAR scores of subjects were worse at the 1-month postoperative visit than preoperatively, and improvement in visual performance was seen at the 3-month postoperative visit. These changes in visual performance became more evident under mesopic conditions. The means and standard errors of the differences in logMAR scores for the Pre-Post3 (0.097 +/- 0.020) were slightly larger than those of the Pre-Post1 (-0.067 +/- 0.019) and Post1-Post3 (0.031 +/- 0.012) comparisons. Under mesopic conditions, the visual performance of the subjects was statistically significant for the 3 comparisons, but not under photopic conditions.
CONCLUSIONHigh-contrast logMAR chart performed under mesopic conditions has the potential to replace visual acuity measured under photopic conditions in providing more reliable representation of postoperative visual outcomes of LASIK eyes. Eye doctors should consider performing this vision test routinely to gauge the success of LASIK surgery.
Adult ; Contrast Sensitivity ; Female ; Humans ; Keratomileusis, Laser In Situ ; adverse effects ; Lighting ; Male ; Middle Aged ; Reproducibility of Results ; Vision Disorders ; diagnosis ; etiology ; Vision Tests ; methods ; Visual Acuity
9.Relationship between the classification of diabetic macular edema and its related factors.
Li-Ying LIU ; Fang-Tian DONG ; Hui LI
Acta Academiae Medicinae Sinicae 2007;29(6):797-802
OBJECTIVETo explore the relationship between the classification and degree of diabetic macular edema (DME) and the stages of diabetic retinopathy (DR), diabetic duration, classification of diabetes, use of insulin, and visual loss.
METHODSWe retrospectively analyzed the stages of DR, diabetic duration, classification of diabetes, use of insulin, and visual loss in 1 172 DR patients with fundus fluorescein angiography (FFA). The occurrence of DME in DR in each stage and the relationships between its related factors were analyzed.
RESULTSIn 1 172 patients, 633 eyes in 394 patients had DME (33.62%), including 265 (41.86%) with focal DME and 368 (58.14%) with diffuse DME. There were 246 (38.86%) eyes with mild DME, 189 (29.86%) with moderate DME, and 198 (31.28%) with severe DME. Significant correlations exhisted among the classification of DME (r = 0.975, P = 0.025), the degree of DME (r = 1.000, P = 0.000), and the stage of DR. DME deteriorated with the increase of the stages of DR. The visual loss significantly correlated with the degree of DME (r = -0.984, P = 0.003). The visual acuity was lower in patients with diffuse DME than those with focal DME. The diabetic duration significantly correlated with the classification and degree of DME (r = 0.962, P = 0.009). DME was mostly seen in patients with a disease course of six years or longer, and its severity and incidence increased along with the prolonged period. Also, The incidence of DME increased in patients with type 2 diabetes and patients who used insulin.
CONCLUSIONThe classification and degree of DME correlates with the stages of DR, diabetic duration, the classification of diabetes, the use of insulin, and visual loss.
Diabetic Retinopathy ; classification ; complications ; epidemiology ; Humans ; Insulin ; therapeutic use ; Macular Edema ; classification ; epidemiology ; etiology ; Retrospective Studies ; Vision Disorders ; complications ; epidemiology
10.Cross-sectional investigation of visual impairing diseases in Shanghai blind children school.
Jian-Feng ZHU ; Hai-Dong ZOU ; Xian-Gui HE ; Li-Na LU ; Rong ZHAO ; Hong-Mei XU ; Qing-Feng LIANG
Chinese Medical Journal 2012;125(20):3654-3659
BACKGROUNDThe control of blindness in children is a high priority within the VISION 2020 initiative. To determine the causes of severe visual impairment and blindness in children from Shanghai Blind Children School (SBCS) can provide useful information on childhood blindness in Shanghai.
METHODSA cross-sectional investigation of students in SBCS was conducted in May 2010. The World Health Organization/Prevention of Blindness (WHO/PBL) eye examination record system for children with low vision and blindness was used. The results were further compared with the findings of two previous investigation studies conducted in 1986 and 2004, respectively in SBCS.
RESULTSOf the 146 children observed, 80 children (54.8%) were blind (best corrected best visual acuity less than 0.05), 27 children (18.5%) had severe visual impairment (best corrected visual acuity less than 0.1 but better than or equal to 0.05), and 34 children (23.3%) had moderate visual impairment (best corrected visual acuity less than 0.3 but better than or equal to 0.1). The major affected anatomic sites in the 107 children with severe visual impairment and blindness (SVI/BL) were retina (47.7%), whole globe (16.8%), optic nerve (13.1%) and lens (9.3%). The leading causes of SVI/BL were retinopathy of prematurity (ROP, 25.2%), followed by retinal dystrophy (15.9%), optic nerve atrophy (9.3%) and microphthalmos (9.3%). The two leading etiologic categories of SVI/BL were perinatal/neonatal (36.4%) and congenital/hereditary groups (29.0%). The leading cause of moderate visual impairment was aphakia after cataract surgery (congenital cataract, 44.1%). Compared with the findings in two previous investigations in SBCS, the proportion of ROP in visual impairing diseases increased, while the proportion of disorders of the lens (cataract and aphakia) significantly decreased.
CONCLUSIONSThe leading cause of childhood blindness in SBCS nowadays is ROP. It is projected that without improvement in perinatal medical care that ROP will continue to be a major cause of childhood blindness.
Adolescent ; Child ; Child, Preschool ; China ; Cross-Sectional Studies ; Female ; Humans ; Infant, Newborn ; Male ; Retinopathy of Prematurity ; complications ; Vision Disorders ; etiology