scholarly journals A retrospective analysis of heterophoria values in a clinical population aged 18 to 30 years

2005 ◽  
Vol 64 (4) ◽  
Author(s):  
N. T. Makgaba

Information on heterophoria values in South Africans is scanty. The purpose of this paper therefore, is to present information on the distribution of heterophoria in a clinical population aged 18 to 30 years, which hitherto is not available. The data presented here was obtained from the record cards of 475 black South African patients examined at the Optometry clinic, University of Limpopo (Turfloop campus) between 2000 and 2005. The patients were examined by final year students under the supervision of qualified optometrists. Heterophoria was measured for each patient using the von Graefe method. The horizontal heterophoria for distance vision (6 m) ranged from 16 prism diopters (pd) esophoria to 12 pd exophoria with a mean of 0.74 pd exophoria (SD = ± 2.84 pd). For distance vision, esophoria ranged from 0.5 to 16 pd with a mean of 3.08 pd (SD = ± 3.09), while exophoria ranged from 0.5 pd to 12 pd with a mean of 2.21 pd (SD = 1.82 pd). For near vision (0.4 m), the horizontal phorias ranged from 17 pd esophoria to 15 pd exopho-ria with a mean of 3.84 pd exophoria (SD = ± 4.80 pd). The near esophorias ranged from 0.5 to 17 pd with a mean 4.88 pd (SD = ± 3.41), while the exophorias ranged from 1.0 to 15 pd with a mean of 6.30 pd (SD = ± 2.58). Vertical heterophoria for distance vision ranged from 5 to 3 pd right hyperphoria with a mean of 0.05 pd right hyperphoria (SD = ± 0.76) whereas at near it ranged from 4 to 6 pd right hyperphoria

2006 ◽  
Vol 65 (4) ◽  
Author(s):  
N.T. Makgaba

Information on heterophoria values in South Africans  is  scanty. The  purpose  of  this  paper therefore, is to present information on the distribution of heterophoria in a clinical popula-tion aged 18 to 30 years, which hitherto is not available. The data presented here was obtained from  the  record  cards  of  475  black  South African  patients  examined  at  the  Optometry clinic, University of Limpopo (Turfloop cam-pus) between 2000 and 2005. The patients were examined by final year students under the supervision  of  qualified  optometrists.  Heterophoria was  measured  for  each  patient  using  the  von Graefe  method.  The  horizontal  heterophoria for distance vision (6 m) ranged from 16 prism diopters (pd) esophoria to 12 pd exophoria with a mean of 0.74 pd exophoria (SD = ± 2.84 pd). For  distance  vision,  esophoria  ranged  from 0.5 to 16 pd with a mean of 3.08 pd (SD = ± 3.09), while exophoria ranged from 0.5 pd to 12 pd with a mean of 2.21 pd (SD = 1.82 pd). For near vision (0.4 m), the horizontal phorias ranged from 17 pd esophoria to 15 pd exopho-ria with a mean of 3.84 pd exophoria (SD = ± 4.80 pd). The near esophorias ranged from 0.5 to 17 pd with a mean 4.88 pd (SD = ± 3.41), while the exophorias ranged from 1.0 to 15 pd with a mean of 6.30 pd (SD = ± 2.58). Vertical heterophoria for distance vision ranged from 5 to 3 pd right hyperphoria with a mean of 0.05 pd right hyperphoria (SD = ± 0.76) whereas at near it ranged from 4 to 6 pd right hyperphoria with a mean of 0.08 pd right hypophoria (SD =  ±  0.96).  The  distributions  of  heterophoria at distance and near were non-normal.  There was  no  significant  gender  variation  in  the horizontal  values  for  distance  vision  and  the vertical  (distance  and  near)  ones.  However, there was a statistically significant gender varia-tion  in  the  near  horizontal  values  (p  >  0.05). There  was  no  significant  variation  in  heterophoria  values  with  age.    The  data  presented here will be useful for comparison with simi-lar data from South Africa or other countries.


2019 ◽  
Vol 23 (1) ◽  
pp. 36-44 ◽  
Author(s):  
Arinao Ndadza ◽  
Zinhle Cindi ◽  
Edson Makambwa ◽  
Emile Chimusa ◽  
Ambroise Wonkam ◽  
...  

2015 ◽  
Vol 54 (3) ◽  
pp. 270-274 ◽  
Author(s):  
Candice Feben ◽  
Jennifer Kromberg ◽  
Rosalind Wainwright ◽  
David Stones ◽  
Janet Poole ◽  
...  

2020 ◽  
Vol 189 ◽  
pp. 03031
Author(s):  
Xiangting Chen

-In this article he examines the social identity crisis of White South Africans in Nadine Gordimer’s “The Conservationist”. Gordimer describes the psychology, social deformities and human distortions of the repressed white people in post-colonial South Africa. At that time, white South Africans were tortured by colonial guilt and racial contradictions. While recognizing the culture of their European ancestors, they wanted to integrate into the black South African society. This paper analyzes the decline of South African white identity and the phenomenon of white exodus from the perspective of the protagonist’s thoughts and behaviors, and combines the political and social problems during those days.


2018 ◽  
Author(s):  
Jessica Levesley ◽  
Fiona Baine ◽  
Marc Ciosi ◽  
Alastair Maxwell ◽  
Darren G Monckton ◽  
...  

2016 ◽  
Vol 43 (1) ◽  
pp. 27-49
Author(s):  
Kitty B. Dumont ◽  
Sven Waldzus

The present research studied reparation demands of born-free Black South African adolescents as members of a former victimized group from a social psychological perspective. Two cross-sectional studies tested whether identification indirectly predicts reparation demands via assignment of collective guilt to White South Africans; and whether this indirect relation is moderated by cross-group friendship. The results support both hypotheses and show a stronger link between identification with the victimized group and collective guilt assignment in a segregated rather than a desegregated context (Study 1: N = 222) and for participants reporting lower levels of cross-group friendship (Study 2: N = 145). Reparation demands are important for strongly identified members of a victimized group in a postconflict situation. Their mediation by collective guilt assignment, mitigated by cross-group friendship, indicates that one major function is to insure recognition of the victims’ past suffering and to repair the relationship rather than ostracizing the transgressor group or gaining access to resources.


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