At a glance
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Effect of Presbyopic Correction Lens on Humphrey Visual Field Testing in Patients With Multifocal Intraocular Lens
In Brief
A clinical study evaluating Humphrey visual field testing for Glaucoma and Cataract Senile. Completed, enrolled 71 participants across 1 site.
Detailed Summary
Purpose of this study was to evaluate the effect of presbyopic correction lens on Humphrey visual field (HVF) testing in patients with 2 models of multifocal intraocular lens (MIOL) both with and without glaucoma. All participants performed HVF testing with presbyopic collection lenses and without presbyopic collection lenses on the same occasion (5-10 minutes between the test). The mean deviation (MD) and pattern standard deviation (PSD) were compared between with and without presbyopic collection lenses, between glaucoma and non-glaucoma and between 2 models of MIOL.
Study Details
Timeline
Interventions
Perimetry was performed with the Humphrey Field Analyzer (Carl Zeiss Meditec Inc). Participants performed a 30-2 or a 24-2 Swedish Interactive Threshold Algorithm (SITA) standard test with stimulus size III, and standard Humphrey background luminance of 31.5 apostilbs. The participants were selected by simple random sampling to perform the HVF test with presbyopic collection lenses followed by without presbyopic collection lenses, or without presbyopic collection lenses followed by with presbyopic collection lenses. The power of presbyopic correction lens at the testing distance of 33 cm (the bowl radius) was auto-calculated according to the recommendation by the Humphrey Field Analyzer's manufacturer, depending on the current refractive error and the patient's age.