1. Phacoemulsification without preoperative topical mydriatics: Induction and sustainability of mydriasis with intracameral mydriatic solution
- Author
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Sanjiv K Gupta, Ajai Kumar, Swati Agarwal, and Siddarth Agarwal
- Subjects
Clinical profile ,Indian population ,optic neuritis treatment trial ,optic neuritis ,Decompression of the orbit ,diplopia ,orbit ,thyroid exophthalmos ,thyroid ophthalmopathy ,Limbus incision ,subconjunctival incision ,sutureless manual small-incision cataract surgery ,wound construction ,Central retinal vein occlusion ,intravitrealbevacizumab ,intravitrealtriamcinolone acetonide ,macular edema ,Contrast sensitivity ,fixation ,microperimeter ,normative data ,retinal sensitivity ,Optical coherence tomography ,optic disc pit ,retinal detachment ,retinoschisis ,Homocysteine ,retinal vein occlusion ,visual impairment ,Diabetic macular edema ,monocyte chemoattractant protein-1 ,soluble intracellular adhesion molecule-1 ,vascular endothelial growth factor ,Compressive optic neuropathy ,humphrey visual field ,ischemic optic neuropathy ,multifocal visual evoked potential ,Age ,body mass index ,gender ,high density lipoprotein ,intraocular pressure ,lipid profiles ,total cholesterol ,triglyceride ,Capsular tension ring ,cataract ,intraocular lens ,myopia ,phacoemulsification ,posterior capsular opacification ,Ethnicity ,Indian ,macular thickness ,normative ,retinal nerve fiber layer ,Ocular torticollis ,superior oblique palsy ,surgery ,Barriers to follow-up ,pediatric cataract ,visual outcome ,Cataract ,intracameral mydriatic solution ,no preoperative mydriatic ,Ophthalmology ,RE1-994 - Abstract
Context: Intracameral mydriatic solution can eliminate the disadvantages of repeated eye drop instillation regimen and provide adequate mydriasis for phacoemulsification with added advantages. Aims: Evaluating the role of intracameral irrigating solution (0.5% lignocaine + 0.001% epinephrine) in initiating and maintaining the pupillary mydriasis during phacoemulsification. Secondary aims were to observe the effect of surgical time, nucleus density and ultrasound time on mydriasis during the procedure. Settings and Design: The study is a prospective interventional case series, conducted at tertiary care institution. Materials and Methods: Thirty patients underwent phacoemulsification under topical anesthesia for visually significant cataract. Pupillary dilatation was achieved by intracameral irrigation of mydriatic solution alone. Pupillary diameter was measured serially during surgery and ultrasound time and total surgical time were noted. Statistical Analysis Used: Paired samples student-t test was done to compare means. Spearman correlation coefficient was used to study the effect of various parameters on mydriasis. Results: Thirty eyes completed the study. The pupil size increased from 2.1 mm (Range 2-3.5 mm SD ± 0.32) to 6.9 mm (Range 5-9 mm SD ± 1.02) in 30 seconds time after intracameral mydriatic solution delivery, and was 7.0 mm (Range 3.5 - 9 mm SD ± 0.20) at the end of surgery. Duration of surgery, grade of nucleus and ultrasound time had statistically insignificant effect on mydriasis. Conclusions: Intracameral solution containing 0.5% lignocaine and 0.001% epinephrine provides rapid mydriasis which is adequate for safe phacoemulsification and is unaffected by other parameters.
- Published
- 2014
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