FUCHS ENDOTHELIAL CORNEAL DYSTROPHY: IS FEMTOSECOND LASER-ASSISTED CATARACT SURGERY THE RIGHT APPROACH?

INTRODUCTION: Femtosecond Laser-assisted cataract surgery represents a modern technology that hopes to lower the risk of complications for patients suffering from Fuchs endothelial dystrophy by using a reduced level of energy that causes less damage to the endothelium, the main concern for patients with Fuchs endothelial dystrophy. The femtosecond laser performs 3 important steps in cataract surgery: corneal incisions, capsulorhexis and nucleus fragmentation without intraocular instrument manipulation. PURPOSE: The purpose of this study is to determine the efficiency of Femtosecond Laser-assisted cataract surgery in Fuchs endothelial dystrophy. MATERIAL AND METHODS: 5 patients with 6 eyes underwent cataract surgery assisted by Femtosecond Laser LensX at Laser Optisan Clinic. Corneal changes before and after surgery and cumulative dissipated energy (CDE) were analyzed. RESULTS: Before surgery, our patients presented BCVA between 0.16-0.4, Pachymetry between 450-590 Lm, endothelial cells between 789-2008 mm2. The medium cumulative dissipated energy (CDE) used was 4.58 seconds. After surgery, BCVA improved in all patients and none of them developed corneal decompensation so far. CONCLUSIONS: Femtosecond Laser-assisted cataract surgery represents a safe alternative in patients with Fuchs endothelial dystrophy and has a low risk of corneal decompensation.

PERSISTENT PUPILLARY MEMBRANE OR ACCESSORY IRIS MEMBRANE?.

Frequently, in literature and curent practice, accessory iris membrane (AIM) and persistant pupillary membrane (PPM) are confused. Both AIM and PPM are congenital iris anomalies in which fine or thick iris strands arrise form the collarette and obscure the pupil. AIM, which is also called iris duplication, closely resembles the normal iris tissue in color and thickness and presents a virtual second pseudopupil aperture in the centre while PPM even in its extreme forms presents as a translucent or opaque membranous structure that extends across the pupil and has no pseudopupil. Mydriatiscs, laser treatment or surgery is used to clear the visual axis and optimize visual development. Surgical intervention is reserved for large, dense AIMs and PPMs. Our patient, a 29 year old male, has come with bilateral dense AIM, bilateral compound hyperopic astigmatism, BCVA OD = 0.6, BCVA OS = 0.4, IOP OU = 17 mmHg. To improve the visual acuity of the patient we decided to do a bilateral membranectomy, restoring in this way transparency of the visual axis. After surgery, the visual acuity improved to BCVA OD= 0.8, BCVA OS=0.8.