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Trial History Detail on 2010-03-23

CUHK_CCT00256

2010-03-16

Retrospective

Nil

Department Funding [Department of Ophthalmology & Visual Sciences]

Nil

Nil

Miss Joyce Kung

UEC, 3/F, Hong Kong Eye Hospital, 147K Argyle Street

27623134

joycekung@cuhk.edu.hk

Department of Ophthalmology & Visual Sciences, The Chinese University of Hong Kong

Dr. Philip Lam

UEC, 3/F, Hong Kong Eye Hospital, 147K Argyle Street

27623134

pthlam@cuhk.edu.hk

Department of Ophthalmology and Visual Sciences, The Chinese University of Hong Kong

Prospective randomized trial to evaluate the efficacy of topical Xylocaine gel versus Alcaine eye drops in the pain control in LASIK Surgery

Prospective randomized trial to evaluate the efficacy of topical Xylocaine gel versus Alcaine eye drops in the pain control in LASIK Surgery

Nil

Hong Kong

Yes

2006-11-25

Myopia, corneal sensation

Drug

Proparacaine and lidocaine (gel)

2 mins

Proparacaine and hydroxypropyl-methylcellulose (gel)

1.Any persons greater than 18 years of age, requiring LASIK for refractive errors correction under topical anesthesia who agrees to participate in the study and in whom pain scores can be reliably assessed.
2.Cooperative enough to receive LASIK under topical anesthesia by gel / eye drops
3.Willing to participate and give a consent after full explanation of the aims, risks and benefits of the study

1.Patients with other ocular or systemic conditions, which are painful or require the regular use of analgesics.
2.Patients with medical, psychological and social conditions predisposing to a different perception of pain.
3.Patients who do not want to receive the gel during the LASIK procedure
4.Patients not cooperative or patient with conditions that prevent them to cooperate to undergo the LASIK procedure under topical anesthesia by gel / eye drops
5.Anisometropia > 1.5D

Greater than 18 yr

None set

Both Male and Female

Interventional

Randomized

Placebo

Double-blind

Parallel

2007-06-04

70

Complete

Pain scores during application of anaesthesia, during the procedure (application of lid speculum, flap creation and laser application).

Overall acceptance of the procedure
Complication related to pain or discomfort.

No

2012-04-18


Yes

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