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Year : 2014  |  Volume : 62  |  Issue : 3  |  Page : 333-336

Phacoemulsification without preoperative topical mydriatics: Induction and sustainability of mydriasis with intracameral mydriatic solution

1 Department of Ophthalmology, Chatrapati Sahuji Maharaaj Medical University, Lucknow, Uttar Pradesh, India
2 Unit 1, Jan Kalyan Eye Hospital, Indira Nagar, Lucknow, Uttar Pradesh, India

Correspondence Address:
Sanjiv K Gupta
18/464, Indira Nagar, Lucknow - 226 016, Uttar Pradesh
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Source of Support: None, Conflict of Interest: None

DOI: 10.4103/0301-4738.109521

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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.

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