نتایج جستجو برای: phacoemulsification

تعداد نتایج: 2914  

2017

Phacoemulsification is the technique of choice for most cataract surgeons worldwide. This technique can have complications at any of its stages, including intra or post-operative stages. The frequency of the presentation of intraoperative complications varies according to the surgeon’s experience [1], the type of cataract and whether suitable instruments are used [2]. Capsular blockage syndrome...

2011
Anup Chirayath Boris Malyugin

by pseudoexfoliation syndrome, uveitis, posterior synechiae, trauma or previous intraocular surgery . A significant number of patients who present for phacoemulsification cataract surgery have pupils that do not respond adequately despite several pharmacological attempts with different mydriatic agents. Inadequate pupil dilation can decrease visualization during all stages of the phacoemulsific...

2014
Brian A. Francis Stanley J. Berke

METHODS: Consecutive patients with medically controlled OAG and visually significant cataracts were treated with ECP and cataract extraction (study group) or cataract extraction alone (control group). The groups were matched in age and baseline intraocular pressure (IOP). The main outcome measures were the change in IOP and number of glaucoma medications. Secondary measures included visual acui...

2007
Abrar Ali Tabassum Ahmed Tahir Ahmed

Objective: To determine the corneal problems faced during and after phacoemulsification (phaco) as a beginner of phaco surgeries Methodology: Corneal problems in 100 cases of phaco were retrospectively analysed. Those cases with nuclei +3 / above and those who were operated in camps were excluded. Phaco-chop technique was used in 80% of cases. Average duration of surgery was 20 minutes Results:...

2016
Alahmady Hamad Alsmman Hassan Khulood M. Sayed Mohammed ElAgooz Ashraf Mostafa Elhawary

In this study we evaluate the visual outcomes, safety, efficacy, and stability of implanting of second sulcus intraocular lens (IOL) to correct unsatisfied ametropic patients after phacoemulsification. Methods. Retrospective study of 15 eyes (15 patients) underwent secondary intraocular lens implanted into the ciliary sulcus. The IOL used was a Sensar IOL three-piece foldable hydrophobic acryli...

2013
SHU-YANG WANG

This paper applies the direct digital frequency synthesis technology (DDS) to build a controllable variable frequency and waveforms of the bio-diesel fuel phacoemulsification system. The optimal operating parameters of phacoemulsification system are studied by orthogonal experiment. In the experiment, the ultrasonic frequency, waveform, power and process time are changed to study the stability ...

Journal: :The British journal of ophthalmology 2001
A Assi S Woodruff E Gotzaridis C Bunce P Sullivan

AIM To review retrospectively 74 consecutive cases of combined phacoemulsification and transpupillary drainage of silicone oil. METHODS Candidate patients for intraocular silicone oil removal and cataract extraction underwent combined phacoemulsification and transpupillary drainage of silicone oil through a planned posterior capsulorrhexis and without the use of a pars plana infusion line. ...

Journal: :The British journal of ophthalmology 1997
H B Chittenden W R Meacock J A Govan

AIMS To determine whether topical anaesthesia in small incision self-sealing phacoemulsification cataract surgery provides comparable anaesthesia to sub-Tenon's infiltration. METHODS Thirty five patients undergoing small incision self-sealing phacoemulsification cataract surgery were allocated randomly to receive topical anaesthesia with 0.4% oxybuprocaine or sub-Tenon's infiltration with 2% ...

Journal: :The British journal of ophthalmology 2001
T Kageyama M Ayaki M Ogasawara C Asahiro S Yaguchi

AIM To evaluate outcome of vitrectomy performed at the time of phacoemulsification complicated by intravitreal lens material. METHODS Clinical records associated with consecutive 8536 phacoemulsification procedures were reviewed retrospectively. RESULTS 17 (0.20%) eyes had a posterior capsule rupture with retained lens material in the vitreous cavity that required vitrectomy. Final visual a...

Journal: :The British journal of ophthalmology 2007
Jasmine H Francis Paul A Latkany Jeanne L Rosenthal

AIM The complications of intraocular silicone oil include emulsification, which may lead to vision-threatening disorders such as keratopathy, secondary glaucoma and retinopathy. The authors study the effect of mechanical energy from surgical instruments on the emulsification of silicone oil. METHODS Three different handpieces (phacofragmentation, phacoemulsification, high-speed vitrectomy) we...

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