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Factors affecting the normal perimetric profile derived by automated static threshold LED perimetry
Author(s) -
Wood J.M.,
Bullimore M.A.,
Wild J.M.,
Gilmartin B.
Publication year - 1988
Publication title -
ophthalmic and physiological optics
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.147
H-Index - 66
eISSN - 1475-1313
pISSN - 0275-5408
DOI - 10.1111/j.1475-1313.1988.tb01079.x
Subject(s) - optometry , ophthalmology , medicine , optics , computer science , physics
The relationship between accommodative fluctuations and perimetric sensitivity was investigated in a group of 10 clinically normal emmetropic subjects using the Dicon AP3000 computer‐assisted perimeter at a bowl luminance of 10 asb. Accommodative microfluctuations were attenuated with the antimuscarinic drug cyclopentolate HCL 1% and the concomitant mydriasis was matched on a separate trial using the sympathomimetic phenylephrine HCI 10%. Saline 0.9% was used as the control. Accommodative microfluctuations were found to play a minor role in determining the magnitude of sensitivity out to an eccentricity of 5 0 ; between 5 0 and 27.5 0 , the effect of microfluctuations was masked by the mydriasis produced by the drugs used in the study. The range of sensitivity values at a given location were reduced when accommodative fluctuations were minimized.