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Small pupil and pupil dilatation methods. Comparative study in cataract surgery
Author(s) -
Caramello C.M.,
Del Buey M.,
Cristobal J.,
Mateo Orobia A.J.,
Martinez Velez M.,
Sanchez Marin J.I.,
Idoate A.,
Pinilla I.,
Casas P.
Publication year - 2015
Publication title -
acta ophthalmologica
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.534
H-Index - 87
eISSN - 1755-3768
pISSN - 1755-375X
DOI - 10.1111/j.1755-3768.2015.0658
Subject(s) - dilator , medicine , retractor , pupil , cataract surgery , iris (biosensor) , ophthalmology , surgery , optometry , computer science , optics , artificial intelligence , physics , biometrics
Purpose To compare dilatation pupil devices implemented on cataract surgery, their advantages and disadvantages. Methods Prospective, interventional study to analyze the following pupil dilatation techniques: iris‐retractor hooks and Morcher‐5s, Perfect‐pupil, Graether, Malyugin and Oasis dilator ring. The following properties were studied: handiness, dilatation obtained, stability, and facility to remove the dilator ring in relation with the form, material, size and length of the necessary incision to proceed with the insertion. Results Iris‐retractor hooks are the best option in cases of zonular instability and retropulsion syndrome. The principal advantage is their versatility. Dilator‐rings obtained similar results in stability and dilatation. Malyugin and Oasis dilator rings had the best handiness results. Graether and Oasis were the easiest to remove and Morcher and Perfect‐pupil the most complicated. Conclusions Having a small pupil is one of the main causes of complications in cataract surgery. There are different surgical devices that allow minimizing intra‐operative risks. Each surgeon needs to select the best option compatible with to his surgical technique. Our study revealed that the most used devices were the iris‐retractor hooks due to the capsular stability that they provides and the Oasis dilator‐ring because of its flexibility and how easy they are to remove.