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E. Monestam, M. Andersson, S. Åström; Associations Between Subjective and Ovjective Visual Function in Patients With Uniocular Macular Hole . Invest. Ophthalmol. Vis. Sci. 2005;46(13):1910.
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Purpose: To assess relationships between objective tests of visual function and perceived visual ability recorded with a visual functional questionnaire, in patients with uniocular macular hole. Methods: Forty–seven patients with unilateral macular hole and no other ocular comorbidity were studied. Self–assessed visual ability was measured by a visual function questionnaire (VF–14 with additional questions). High contrast visual acuity (VA) as well as low contrast acuity (LCVA,10% and 2.5%) were measured for both eyes separately and binocularly. Fovea threshold test was measured for both eyes using a Humphrey perimeter. Correlation statistics adjusted for age and gender were used . Results: After controlling for age and gender, the VF–14 score was significantly associated with VA and foveal threshold test of the affected eye, rs=0.–047; p=0.005). (rs=0.38; p=0.03) Regarding the fellow, healthy eye with normal VA, only LCVA 2.5% was significantly associated with the VF–14 score (rs=–0.19; p=0.028). As expected, the healthy, fellow eye had a statistically significant correlation between VA, LCVA 10% and LCVA 2.5% (rs=0.65; p=0.000) (rs=0.48; p=0.004) (rs=0.57; p=0.000), respectively. Regarding fovea threshold test, there was a significant correlation for LCVA 10% and 2.5%, rs=0.57; p=0.000, and rs=0.48; p=0.004, respectively, not for VA. Regarding the eye affected with a macular hole the pattern was different. VA was significantly correlated with fovea threshold test (rs=–0.67; p=0.000) but not with low contrast VA. Low contrast VA 10% and 2.5% were significantly correlated (rs=0.71; p=0.000). Surprisingly, there was a statistically significant correlation between VA of the affected eye and LCVA 2.5% of the fellow eye (rs=0.49; p=0.03) Conclusions: Visual acuity of the affected eye and low contrast VA 2.5% of the healthy eye had the strongest association with subjective visual function in patients with uniocular macular hole. These findings differ from data from cataract patients, which show the VA of the better eye to have a stronger association with subjective visual function than VA of the worse eye. VA of the affected eye was associated with LCVA 2.5% of the fellow eye which could be an indication of subclinical dysfunction of the macula of the fellow eye.
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