UNASSIGNED: OBJECT The authors investigated the value of retinal nerve fiber layer (RNFL) thickness in predicting visual outcome after surgery for @entity1653 . METHODS Forty-nine eyes of 25 @entity1 who underwent craniotomy and resection of a @entity1653 were analyzed retrospectively. Visual parameters including @entity227 ( @entity227 ) (recorded as the @entity5494 [ @entity5494 ]), visual acuity (VA), and RNFL thickness (via optical coherence tomography) were measured before and 1 week, 6 months, and 1 year after surgery. Postoperative visual outcome was compared among the @entity1 with a thin or normal RNFL. A separate analysis of data pertaining to 22 eyes of 13 @entity1 with severe @entity227 ( @entity5494  <= -10 dB) was performed to compare visual outcome for those with a thin or normal RNFL. RESULTS Of the 23 eyes that showed @entity227 improvement, 22 (95.7%) had normal RNFL thickness. The positive predictive value of normal RNFL thickness for @entity227 improvement was 78.6%. The @entity227 of @entity1 with normal RNFL thickness improved in 6 months and continued improving 1 year after surgery ( @entity5494 -5.9 dB before surgery, -5.5 dB 1 week after surgery, -2.8 dB 6 months after surgery [p < 0.01], and -1.1 dB 1 year after surgery [p < 0.01]). In contrast, those with a thin preoperative RNFL showed deterioration at first and then slower, worse visual recovery after surgery ( @entity5494 -18.1 dB before surgery, -22.4 dB 1 week after surgery, -21.2 dB 6 months after surgery, and -19.1 dB 1 year after surgery). VA also showed significant progress 6 months after surgery in @entity1 with normal RNFL thickness (0.6 before surgery, 0.7 one week after surgery, 0.9 six months after surgery [p = 0.025], and 0.9 one year after surgery [p = 0.050]) compared to those with a thin RNFL (0.3 before surgery, 0.2 one week after surgery, 0.3 six months after surgery, and 0.4 one year after surgery). Preoperative differences in @entity227 and VA were noted between the 2 groups (p < 0.01). Even @entity1 with severe @entity227 and normal RNFL thickness improved by 11.1 dB by 1 year after surgery compared with @entity1 with a thin RNFL (-0.01 dB) (p < 0.01). @entity1 with normal RNFL thickness also did better in VA improvement (from 0.7 to 1.1) than those with a thin RNFL (from 0.2 to 0.3), but these results were not statistically significant. CONCLUSIONS RNFL thickness measured by optical coherence tomography has significant value as a prognostic factor of postoperative visual recovery for @entity1653 . @entity1 with normal RNFL thickness before surgery are more likely to have visual improvement after surgery than @entity1 with a thin RNFL.

Use of optical coherence tomography to predict visual outcome in XXXX .

@entity1 :: ('9606', 'Species') :: ['Patients', 'patients'] @entity1653 :: ('MESH:D008579', 'Disease') :: ['parachiasmal meningioma'] @entity227 :: ('MESH:D014786', 'Disease') :: ['VF MD', 'VF defects', 'visual field', 'VF'] @entity5494 :: ('MESH:D010262', 'Disease') :: ['MD', 'mean deviation']
@entity1653 :: (MESH:D008579,Disease) :: ['parachiasmal meningioma']
