title: [Analysis of characteristics of ocular manifestations of benign intracranial hypertension].
abstract: OBJECTIVE
  To investigate the ocular manifestation of benign intracranial hypertension (BIH).
  
  
  METHODS
  It was a retrospective case series study. Clinical data of BIH patients were investigated retrospectively, including symptom, fundus findings, visual acuity and visual field.
  
  
  RESULTS
  It was a retrospective case series study. The majority of 67 patients were female (46 cases, 87%), of which 71.7% were over-weight. While ocular symptoms were reported in 94.0% (63 cases) of cases in whole disease course, 28 cases (41.8%) primarily presented with ocular symptoms, including transient bilateral loss of vision, visual deterioration and diplopia. Papilledema was found in 65 cases (97.0%), of which 54 cases (80.6%) were bilateral. Some patients showed unilateral papilledema (11 cases, 16.4%)and optic atrophy. Abnormal visual acuity was found in 95 eyes (70.9%), of which 35 eyes (26.4%) were below 20/200. Visual field abnormality was found in 89.8% of 49 tested cases. The most common visual field lesion was the enlargement of the blind spot (82 eyes, 83.7%), followed by general constriction in 24 eyes (24.5%), nasal step in 17 eyes (25.4%), central scotoma in 9 eyes (9.2%), Bjerrum scotoma in 22 eyes (22.4%) and arcuate scotoma in 14 eyes (14.3%).
  
  
  CONCLUSIONS
  BIH is not really "benign", especially from the viewpoint of optic nerve function.
authors.affiliation: Department of Ophthalmology, Si Chuan Mianyang Central Hospital, Mianyang 621000, China.
authors.forename: Yan
authors.initials: Y
authors.lastname: Dai
authors.forename: Nan
authors.initials: N
authors.lastname: Jia
authors.forename: Xiao-li
authors.initials: XL
authors.lastname: Wang
authors.forename: Xiao-hu
authors.initials: XH
authors.lastname: Chen
authors.forename: Hou-liang
authors.initials: HL
authors.lastname: Sun
authors.forename: Xiao-jun
authors.initials: XJ
authors.lastname: Zhang
mesh_terms: D000293:Adolescent; D000328:Adult; D000368:Aged; D002648:Child; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D009896:Optic Atrophy / Q000209:etiology; D010211:Papilledema / Q000209:etiology; D011559:Pseudotumor Cerebri / Q000150:complications* / Q000503:physiopathology*; D012189:Retrospective Studies; D014792:Visual Acuity; D055815:Young Adult