PMID- 23297812
OWN - NLM
STAT- MEDLINE
DCOM- 20130715
LR  - 20130214
IS  - 1475-1313 (Electronic)
IS  - 0275-5408 (Linking)
VI  - 33
IP  - 2
DP  - 2013 Mar
TI  - Stereoacuity in mild, moderate and severe glaucoma.
PG  - 172-8
LID - 10.1111/opo.12021 [doi]
AB  - PURPOSE: To determine the association between stereoacuity and severity of 
      glaucoma. METHODS: Stereoacuity was measured using the Titmus stereo test for 97 
      glaucoma subjects with visual acuity better than 0.3 logMAR (6/12, 20/40 Snellen) 
      and reliable Humphrey visual fields (24-2 SITA standard). The severity of visual 
      fields was graded with the Hodapp-Anderson-Parrish (HAP) classification and 
      visual fields index (VFI) score and the stereoacuities for different grades were 
      compared. Presence of a significant field defect (p < 1%) in any one of the 
      paracentral points in 10-2 SITA standard/Macular threshold was considered as a 
      threat to fixation. RESULTS: Mean +/- SD age of the subjects was 57.28 +/- 14.0 
      years. The median [inter-quartile range, (IQR)] stereoacuity of the 97 subjects 
      was 50 (40-100) arc sec with 13 subjects having stereoacuity of >3000 arc sec. 
      Median (IQR) stereoacuity of 97 subjects classified with HAP as mild, moderate 
      and severe were 40 (40-40), 50 (40-60) and 60 (40-400) arc sec; similarly median 
      (IQR) stereoacuity of the subjects classified using VFI as mild, moderate and 
      severe were 40 (40-55), 60 (40-100) and 120 (50-3000) s of arc and the difference 
      between groups were significant (p < 0.001). Median (IQR) stereoacuity in 
      subjects with no threat to fixation (45) and threat to fixation in at least one 
      eye (52) were 40 (40-60) and 70 (40-800) arc sec (p < 0.001). CONCLUSIONS: 
      Decreased stereoacuity was associated with greater glaucomatous visual field 
      loss, although it was normal with early visual field defects. Relatively moderate 
      defects can be associated with decreased stereoacuity and it is more pronounced 
      in the severe stages of the disease when there is a threat to fixation.
CI  - Ophthalmic & Physiological Optics (c) 2013 The College of Optometrists.
FAU - Lakshmanan, Yamunadevi
AU  - Lakshmanan Y
AD  - Sankara Nethralaya, Medical Research Foundation, Chennai, India. 
      yamunadevi_l@yahoo.co.in
FAU - George, Ronnie J
AU  - George RJ
LA  - eng
PT  - Journal Article
DEP - 20130109
PL  - England
TA  - Ophthalmic Physiol Opt
JT  - Ophthalmic & physiological optics : the journal of the British College of 
      Ophthalmic Opticians (Optometrists)
JID - 8208839
SB  - IM
MH  - Adult
MH  - Aged
MH  - Depth Perception/*physiology
MH  - Female
MH  - Glaucoma/*physiopathology
MH  - Humans
MH  - Male
MH  - Middle Aged
MH  - Vision, Binocular/physiology
MH  - Visual Acuity/*physiology
MH  - Visual Field Tests
MH  - Visual Fields/*physiology
EDAT- 2013/01/10 06:00
MHDA- 2013/07/17 06:00
CRDT- 2013/01/10 06:00
PHST- 2012/06/30 00:00 [received]
PHST- 2012/12/04 00:00 [accepted]
PHST- 2013/01/10 06:00 [entrez]
PHST- 2013/01/10 06:00 [pubmed]
PHST- 2013/07/17 06:00 [medline]
AID - 10.1111/opo.12021 [doi]
PST - ppublish
SO  - Ophthalmic Physiol Opt. 2013 Mar;33(2):172-8. doi: 10.1111/opo.12021. Epub 2013 
      Jan 9.