The clinical efficacy of Paremyd with and without dapiprazole in subjects with light and dark brown irides

被引:7
作者
Anicho, UM [1 ]
Cooper, J [1 ]
Feldman, J [1 ]
Jaanus, SD [1 ]
Dignam, K [1 ]
机构
[1] SUNY Coll Optometry, Schnurmacher Inst Vis Res, New York, NY 10010 USA
关键词
Paremyd; dapiprazole; mydriasis; Blacks; pupillary dilation; glare discomfort;
D O I
10.1097/00006324-199902000-00016
中图分类号
R77 [眼科学];
学科分类号
100212 ;
摘要
Background: Paremyd, a mydriatic formulation of 0.25% tropicamide and 1.0% hydroxyamphetamine hydrobromide provides adequate dilation for binocular indirect ophthalmoscopy in young Caucasians. We studied the clinical effectiveness of Paremyd in dilating heavily pigmented eyes by comparing its mydriatic efficacy in Blacks, Asians and Caucasians with light and dark brown irides. We also evaluated the efficacy of one drop of dapiprazole (Rev-Eyes) in reversing Paremyd-induced mydriasis in our subject sample. Methods: In a masked, randomized, controlled experimental design, several visual functions which included pupillary dilation, near visual acuity, amplitude of accommodation, ocular hyperemia, and discomfort glare were measured at 30-min intervals, for a total of 300 min, in subjects dilated with a single drop of Paremyd in each eye. Ease of binocular indirect ophthalmoscopy was also assessed. A 3-way analysis of variance was used to assess changes in these measures as function of irides color/ pigmentation (designated as light or dark brown iris color), presence or absence of dapiprazole, and test time interval. Results: We found that subjects in our light brown irides group (mainly Caucasians) dilated faster than subjects in our dark brown irides group (mainly Blacks). Dapiprazole increased the speed of recovery from pupillary dilation for all subjects, but more so for those with light rather than dark brown irides. Similarly, subjects with light rather than dark brown irides recovered accommodative function more quickly. Although neither the use of dapiprazole nor the degree of iris color/pigmentation was significantly related to visual acuity or glare discomfort, there was a clear trend that these visual measures were affected to a greater degree in subjects with dark brown (primarily Blacks) rather than light brown irides. Overall, Paremyd provided adequate dilation for binocular indirect ophthalmoscopy in all subjects irrespective of iris color/pigmentation. Conclusions: Our data indicate that a single drop of Paremyd provides adequate mydriasis, without significant side effects, for routine fundus examination of all subjects, independent of iris color/ pigmentation. Furthermore, a single drop of dapiprazole was effective in speeding the return of pupillary dilation in most subjects, but had no significant effect on accommodation, near visual acuity or glare discomfort. Side effects such as stinging upon instillation, conjunctival hyperemia, and a few instances of ptosis, with possible additional cost to patients, appear to lessen its overall clinical benefit.
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页码:94 / 101
页数:8
相关论文
共 27 条
[1]  
ALLINSON RW, 1990, ANN OPHTHALMOL, V22, P131
[2]   A COMPARATIVE STUDY OF MYDRIATIC AND CYCLOPLEGIC AGENTS - IN HUMAN SUBJECTS WITHOUT EYE DISEASE [J].
BARBEE, RF ;
SMITH, WO .
AMERICAN JOURNAL OF OPHTHALMOLOGY, 1957, 44 (05) :617-622
[3]  
BARTLETT JD, 1998, FACTS COMP OPHTHALMI
[4]  
BARTLETT JD, 1980, SO J OPTOM, V22, P8
[5]   USE OF DILUTE DRUG SOLUTIONS FOR ROUTINE CYCLOPLEGIA AND MYDRIASIS [J].
BROWN, C ;
HANNA, C .
AMERICAN JOURNAL OF OPHTHALMOLOGY, 1978, 86 (06) :820-824
[6]  
BUCCI M G, 1987, Glaucoma, V9, P94
[7]  
Connor C G, 1993, J Am Optom Assoc, V64, P634
[8]  
Cooper J, 1996, J Am Optom Assoc, V67, P669
[9]  
DOUGHTY MJ, 1991, CAN J OPTOM, V53, P111
[10]  
FORMAN AR, 1980, OPHTHALMOLOGY, V87, P213