Cornea - I Free Papers - aioseducation
Cornea - I Free Papers - aioseducation
Cornea - I Free Papers - aioseducation
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<strong>Cornea</strong> <strong>Free</strong> <strong>Papers</strong><br />
ANOVA and post-hoc bonferroni tests. Data was analyzed with SPSS software<br />
(Version 11.0). Differences were considered statistically significant at P < 0.05.<br />
RESULTS<br />
27 patients (15 males and 12 females) were included in the study. 36 eyes had<br />
pterygium and 18 eyes served as controls. Mean age of the patients was 32.0±6.88.<br />
Number of patients as divided in groups based on vertical length were (Group<br />
1-7, Group 2-18, Group 3-11), horizontal width (GroupA-17, GroupB-19) and<br />
depending on area (GroupI-14, GroupII-15, GroupIII-7). Mean of pterygium<br />
vertically was 4.41±1.12 (Group 1-2.72±0.41, Group 2-4.18±0.50, and Group3-5.86±<br />
0.45), horizontally 2.09±0.68 (GroupA-1.49±0.31 , GroupB-2.62±0.42) and of area<br />
was 9.7±5.01(Group I-4.64±1.23, GroupII-10.98±1.93, GroupIII-17.21±2.20).<br />
The photopic and mesopic contrast sensitivity in the vertical, horizontal and<br />
area wise groups is shown in table 1. All the three parameters had a significant<br />
negative correlation with the contrast sensitivity.<br />
Table 1: Contrast sensitivity of groups as compared with controls<br />
Contrast Vertical length Horizontal width Area Control<br />
sensitivity Group1 Group2 Group3 GroupA GroupB GroupI GroupII GroupIII<br />
(pvalue) (pvalue) (pvalue) (pvalue) (pvalue) (pvalue) (pvalue) (pvalue)<br />
Photopic 3 1.52±0.20 1.45±0.25 1.25±0.19 1.52±0.26 1.30±0.18 1.57±0.24 1.32±0.18 1.24±0.16 1.69±0.16<br />
٭ (0.000) ٭ (0.000) (0.453) ٭ (0.00) (0.06) ٭ (0.00) ٭(0.019) (0.37)<br />
Photopic 6 1.80±0.20 1.67±0.28 1.48±0.34 1.77±0.23 1.52±0.31 1.83±0.21 1.52±0.28 1.53±0.35 1.90±0.18<br />
٭ (0.019) ٭(0.001) (0.87) ٭(0.00) (0.36) ٭(0.002) (0.10) (0.85)<br />
Photopic12 1.48±0.22 1.26±0.24 1.07±0.32 1.33±0.23 1.16±0.31 1.39±0.23 1.19±0.27 1.07±0.31 1.61±0.20<br />
٭ (0.000) ٭ (0.000) (0.11) ٭ (0.00) ٭ (0.012) ٭ (0.00) ٭ (0.001) (0.68)<br />
Photopic18 0.90±0.22 0.85±0.27 0.63±0.34 0.88±0.23 0.71±0.33 0.91±0.24 0.76±0.30 0.63±0.34 1.18±0.28<br />
٭ (0.001) ٭ (0.002) (0.10) ٭ (0.00) ٭ (0.017) ٭ (0.00) ٭ (0.016) (0.22)<br />
Mesopic3 1.35±0.14 1.36±0.22 1.15±0.25 1.36±0.19 1.23±0.25 1.39±0.19 1.26±0.22 1.16±0.28 1.59±0.21<br />
٭ (0.002) ٭ (0.002) (0.14) ٭ (0.00) ٭ (0.022) ٭ (0.00) ٭ (0.035) (0.14)<br />
Mesopic6 1.71±0.13 1.56±0.28 1.31±0.30 1.58±0.21 1.45±0.36 1.65±0.16 1.50±0.331.28±0.23 1.86±0.26<br />
٭ (0.000) ٭ (0.007) (0.23) ٭ (0.001) ٭ (0.028) ٭ (0.00) ٭ (0.024) (0.70)<br />
Mesopic12 1.35±0.20 1.18±0.37 0.96±0.39 1.19±0.28 1.11±0.43 1.26±0.25 1.13±0.39 0.94±0.45 1.61±0.20<br />
٭ (0.000) ٭ (0.002) ٭ (0.039) ٭ (0.00) ٭ (0.002) ٭ (0.00) ٭ (0.003) (0.33)<br />
Mesopic18 0.84±0.19 0.82±0.32 0.52±0.35 0.81±0.20 0.66±0.41 0.85±0.18 0.76±0.38 0.45±0.34 1.17±0.22<br />
٭ (0.000) ٭ (0.002) ٭ (0.033) ٭ (0.00) ٭ (0.005) ٭ (0.00) ٭ (0.01) (0.10)<br />
DISCUSSION<br />
Our study shows that the contrast sensitivity of patients in whom the vertical<br />
length of pterygium is ≤3mm is not significantly different from the controls.<br />
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