Dataset Information

Femtosecond laser-assisted cataract surgery in a patient with posterior chamber phakic intraocular lens.

ABSTRACT: We describe a case of modified femtosecond laser settings for cataract extraction in a patient with a posterior chamber phakic intraocular lens (PIOL), to avoid incomplete treatment patterns and treatment displacement. Modification of laser settings (increased depth for the capsulotomy, increased vertical spot spacing for the capsulotomy and increased anterior and posterior capsule safety margins for lens fragmentation) seems to make femtosecond laser-assisted cataract surgery feasible in patients with posterior chamber PIOLs, as complete treatment patterns are achieved.

SUBMITTER: Diakonis VF

PROVIDER: S-EPMC5757340 | biostudies-literature | 2016 Apr

REPOSITORIES: biostudies-literature

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Femtosecond laser-assisted cataract surgery in a patient with posterior chamber phakic intraocular lens.

Diakonis Vasilios F VF Yoo Sonia H SH Kontadakis Georgios A GA El Danasoury Alaa M AM Donaldson Kendal E KE Culbertson William W WW

American journal of ophthalmology case reports 20160210

We describe a case of modified femtosecond laser settings for cataract extraction in a patient with a posterior chamber phakic intraocular lens (PIOL), to avoid incomplete treatment patterns and treatment displacement. Modification of laser settings (increased depth for the capsulotomy, increased vertical spot spacing for the capsulotomy and increased anterior and posterior capsule safety margins for lens fragmentation) seems to make femtosecond laser-assisted cataract surgery feasible in patien ...[more]

PMID: 29503881

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Project description:PurposeTo report the 3-month results of a randomized trial (Femtosecond Laser-Assisted Cataract Trial [FACT]) comparing femtosecond laser-assisted cataract surgery (FLACS) with standard phacoemulsification cataract surgery (PCS).DesignMulticenter, randomized controlled trial funded by the UK National Institute of Health Research (HTA 13/04/46/).ParticipantsSeven hundred eighty-five patients with age-related cataract.MethodsThis trial took place in 3 hospitals in the UK National Health Service (NHS). Randomization (1:1) was stratified by site, surgeon, and 1 or both eyes eligible using a secure web-based system. Postoperative assessments were masked to the allocated intervention. The primary outcome was unaided distance visual acuity (UDVA) in the study eye at 3 months. Secondary outcomes included corrected distance visual acuity, complications, and patient-reported outcomes measures. The noninferiority margin was 0.1 logarithm of the minimum angle of resolution (logMAR). ISRCTN.com registry, number ISRCTN77602616.Main outcome measuresWe enrolled 785 participants between May 2015 and September 2017 and randomly assigned 392 to FLACS and 393 to PCS. At 3 months postoperatively, mean UDVA difference between treatment arms was -0.01 logMAR (-0.05 to 0.03), and mean corrected distance visual acuity difference was -0.01 logMAR (95% confidence interval [CI], -0.05 to 0.02). Seventy-one percent of both FLACS and PCS cases were within ±0.5 diopters (D) of the refractive target, and 93% of FLACS and 92% of PCS cases were within ±1.0 D. There were 2 posterior capsule tears in the PCS arm and none in the FLACS arm. There were no significant differences between arms for any secondary outcome.ConclusionsFemtosecond laser-assisted cataract surgery is not inferior to conventional PCS surgery 3 months after surgery. Both methods are as good in terms of vision, patient-reported health, and safety outcomes at 3 months. Longer-term outcomes of the clinical effectiveness and cost-effectiveness are awaited.

Dataset Information

Femtosecond laser-assisted cataract surgery in a patient with posterior chamber phakic intraocular lens.

Publications

Femtosecond laser-assisted cataract surgery in a patient with posterior chamber phakic intraocular lens.

Similar Datasets

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