Counteracting the Effects of Mydriatics

Nelson, M. E.; Orton, Helen P.

doi:10.1001/archopht.1987.01060040056032

Cited by 25 publications

(3 citation statements)

References 7 publications

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“…Pilocarpine has little or no effect on the return of pupil size, accommodation, or vision following anticholinergic mydriasis[60,61]. In Nelson and Orton's controlled series, vision actually deteriorated to 6/36 or worse in four of 23 eyes (17%) after pilocarpine was used for reversal[61].…”

Section: Use Of Pilocarpine To Reverse Mydriasismentioning

confidence: 99%

Mydriasis and glaucoma: exploding the myth. A systematic review

Pandit¹,

Taylor

2000

Diabetic Medicine

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Section: Use Of Pilocarpine To Reverse Mydriasismentioning

confidence: 99%

Mydriasis and glaucoma: exploding the myth. A systematic review

Pandit¹,

Taylor

2000

Diabetic Medicine

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“…There is a statistically significant change in the distance [6][7][8] and near vision pre-and postdilation.…”

Section: Resultsmentioning

confidence: 48%

Driving ability after pupillary dilatation

Goel¹,

Maharajan²,

Chua³

et al. 2003

Eye

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Background The Royal College of Ophthalmologists' guidelines and Driver and Vehicle Licensing Agency (DVLA) recommend that a patient should not drive with dilated pupils based on the rationale that vision may be compromised in acuity and ability to tolerate glare. Arguments exist against these recommendations suggesting that pupillary dilatation does not have any real bearings on driving ability. Aim To determine the effects of pupillary dilatation on the ability to drive. Methods The study was randomised and prospective. A total of 28 patients had their visual parameters (distance vision, near vision, licence plate reading at 20 m or shorter, and glare) measured and analysed pre-and posttropicamide 1% dilatation. Paired two-tailed Student's t-test and v

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“…1 However, others studies have shown only limited effects on high-contrast acuity and PelliRobson contrast threshold and no significant effects on low-contrast visual acuity and field of vision. [2][3][4] The aims of this study were to determine the effects of pupil dilatation on colour discrimination, and on contrast sensitivity over a wide range of spatial frequencies.…”

Section: Introductionmentioning

confidence: 99%

Changes in chromatic and achromatic contrast sensitivities following tropicamide administration

Lee

Ong

Rajak

et al. 2005

Eye

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Purpose To investigate the effects of tropicamide on chromatic and achromatic contrast sensitivities over the physiological range of spatial frequencies. Methods A total of 26 healthy volunteers, with a mean age of 32 years, were examined with and without one drop of 1% tropicamide being administered 30 min previously. On each occasion, acuity and pupil diameter were recorded, and chromatic and achromatic contrast sensitivities were examined using the Sussex Grating Machine. Results Following tropicamide administration mean pupil diameter increased from 4.1 mm to 7.2 mm (Po0.001), and mean BCVA was reduced by 0.07 LogMar units (Po0.001). Achromatic contrast sensitivity was significantly reduced following tropicamide administration at 2.20 cycles per degree (cpd) (P ¼ 0.01), 3.40 cpd (P ¼ 0.01), 10 cpd (P ¼ 0.04), 17 cpd (P ¼ 0.04), and 25 cpd (Po0.01). There was no difference in contrast sensitivity at lower spatial frequencies (0.33 and 0.66 cpd). Chromatic contrast sensitivity was not significantly altered when tested along the red-green and tritan confusion axes. Conclusions Achromatic contrast sensitivity is significantly reduced following tropicamide administration at intermediate and high spatial frequencies. No significant changes were seen at low spatial frequencies and in chromatic contrast sensitivities.

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Counteracting the Effects of Mydriatics

Cited by 25 publications

References 7 publications

Mydriasis and glaucoma: exploding the myth. A systematic review

Mydriasis and glaucoma: exploding the myth. A systematic review

Driving ability after pupillary dilatation

Changes in chromatic and achromatic contrast sensitivities following tropicamide administration

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