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Comparative study of hyperacuity and retinometer tests for the evaluation of vision in patients with advanced
L Quan1, S Li, C W George
1Zhongshan Ophthalmic Center, Sun Yat-sen University of Medical Sciences, Guangzhou 510060, China.
Objective:
To investigates the clinical application value of hyperacuity test for evaluating vision through dense cataracts.
Methods:
Ten normal subjects (20 years) were tested both with Bailey-Lovie type chart and three points vernier acuity test (one of the hyperacuity test); and retinometer test were performed preoperatively and postoperatively in 30 patients (31 eyes) with senile cataract. These patients' lens opacity was classified with LOCS III system.
Results:
The correlation of vernier acuity and visual acuity of normal subjects is significant. The result of difference compression of pre-surgical and post-surgical vernier acuity of 30 cataract patients is not significant. The correlation of retinometer findings with post-surgical visual acuity shows not statistically significant. Our result shows that there is good correlation between vernier acuity and post-surgical visual acuity.
Conclusion:
It appears that hyperacuity is a good test for foveal function behind dense cataract and other ocular opacities.
