You searched for "intraocular lens"

582 results found

Optical quality difference between monofocal and multifocal intraocular lenses

It is well known that multifocal intraocular lenses (IOLs) can generate more than one focus to restore distance and near vision, but patients may experience adverse optical phenomena such as decreased contrast sensitivity and induced glare or halos. The authors...

Effect of intravenous mannitol in post vitrectomised eyes

The purpose of the study was to evaluate the effect of intravenous mannitol 20% on intraocular pressure in vitrectomised silicone-oil filled eyes. A prospective analysis of consecutive patients was undertaken with their fellow eyes taken as controls. Thirty-one patients were...

Optic nerve head perfusion response to reduced blood pressure and increased intraocular pressure

The purpose of this prospective study was to test the hypothesis that blood flow autoregulation in the optic nerve head has less reserve to maintain normal blood flow where there is a blood pressure induced decrease in ocular perfusion pressure...

Relationship between nocturnal intraocular pressure elevation and diurnal intraocular pressure level in NTG patients

This group studies Korean normo-tension glaucoma (NTG) patients over a 24-hour period to assess if there was a relationship between nocturnal intraocular pressure (IOP) and diurnal IOP. They have previously suggested differences in diurnal IOP may have varying mechanisms of...

Implantation of intraocular pressure sensor in glaucoma patients

The authors report safety and accuracy of an intraocular intraocular pressure (IOP) sensor placed in the ciliary sulcus during planned cataract surgery. Six patients underwent implantation of the device; a silicone rubber ring-shaped device encapsulating pressure sensitive capacitors and a...

Infections related to strabismus surgery

This review considers the range of infections occurring with strabismus surgery. Extraocular infections include conjunctiva, sub Tenon’s abscess and orbital cellulitis. Intraocular infection includes endophthalmitis. Prevention of infection and risk factors includes the issue of scleral penetration and use of...

Perception of depth in 3-D media

The aim of this study was to evaluate the relationship between clinical measures of stereoacuity and the perception of depth in 3-D entertainment media. Fifty-seven subjects aged 16-62 years with stereopsis and no strabismus were assessed. Monocular blur was used...

IOP and reversibility of RPE detachment

The authors describe how three patients with retinal pigment epithelium (RPE) detachment showed a reduction or disappearance of an RPE detachment immediately following prone dark room test (PDRT). The authors performed spectralis OCT on 140 angle closure subjects before and...

Delayed angle closure in pseudophakia and repeated intravitreal therapy

The authors report two cases of acute angle closure many years after uneventful cataract surgery and posterior chamber intraocular lens (IOL) implantation. Both patients had neovascular age-related macular degeneration (AMD) and received regular intravitreal injections (24 and 25 injections in...

Relationship between intraocular pressure and optic nerve damage in optic nerve drusen

The authors present a retrospective study exploring the relationship between intraocular pressure (IOP) and optic nerve damage in patients with optic nerve drusen. The aim was to evaluate if patients with normal ocular pressure at the time of optic nerve...

In conversation with Professor Rubens Belfort (2018)

We caught up with Professor Belfort at the 2018 Royal College of Ophthalmologists Annual Congress to discuss his Duke Elder Oration on ‘Classic, emergent and unknown intraocular infectious diseases'. Click the image below to see his answers to our questions.