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Visual resolution under photopic and mesopic conditions in patients with Sjögren's syndrome
Mosaad Alhassan1, Amal Aldarwesh1, Issa Alessa1
1Department of Optometry, College of Applied Medical Sciences, King Saud University, Riyadh 11433, Saudi Arabia.
Aim:
To focus on different visual resolution tasks under photopic and mesopic conditions in Sjögren's syndrome patients compared to age-matched healthy controls.
Methods:
The visual resolution measurements included high and low visual acuities and contrast sensitivity functions. These tests were conducted under photopic and then mesopic conditions. Twenty-one Sjögren's syndrome patients and 21 aged-matched healthy volunteers completed all the measurements in this study.
Results:
Sjögren's syndrome patients have greater impairment in contrast sensitivity than standardized visual acuity. This reduction was significant under the mesopic condition. Also, Sjögren's syndrome patients treated with pilocarpine suffer more than patients without pilocarpine treatment under low light conditions.
Conclusion:
Sjögren's syndrome patients shows greater impairment in different visual resolution tasks due to dry eye symptoms.
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