You searched for "virtual"

1881 results found

How good does my vision have to be to drive this thing? Visual standards for various occupations

We can all picture that moment in clinic: you are about to tell someone that they’re no longer legally able to drive, ready to deploy our ‘breaking bad news’ techniques. For some patients this may have been expected, or they...

Topography-guided photorefractive keratectomy in the treatment of corneal scarring

This study reports the outcome of topography-guided photorefractive keratectomy (TG-PRK) in the treatment of patients with corneal scarring. A retrospective case series including six eyes of six patients with corneal scarring and irregular astigmatism who underwent topography guided PRK. The...

Complications of orbital cavernous venous malformation excision

This is a review of 290 patients who underwent excision of orbital cavernous venous malformations (OCVM) between 1970 and 2021, looking to identify the risk factors for a poor visual outcome following surgery. Intraconal lesions were classified as Group I,...

Outcomes of cataract surgery in patients with uveitis

This is a systematic, evidence-based literature review and meta-analysis, looking at the visual outcomes (vision 20/40 or better) of cataract surgery in uveitic eyes. The authors searched MEDLINE, EMBASE, CINHAL and CENTRAL, including English language and human studies only. They...

Using frequency doubling technology perimetry to identify Alzheimer’s disease early

Alzheimer’s disease is widely reported to be associated with deficits in visual function. Visual disturbances include impaired stereopsis, contrast sensitivity and motion detection. Deficits specific to the magnocellular pathway (MGC) have been identified in Alzheimer’s disease. This article compares the...

PERG as a visual prognosticator in chiasmatic tumours

Pattern electroretinogram (PERG) allows assessment of ganglion cell function and may therefore be used to assess anterior visual pathway dysfunction. This prospective non-randomised study assessed PERG before and after surgical removal of tumours in and around the sellar region compressing...

Macular thickness and visual fields

The authors describe a comparison of spectral domain OCT with Humphrey visual fields (HVF) mean deviation (MD) and pattern standard deviation (PSD), examining the retinal thickness of the macula and circumpapillary retinal nerve fibre layer (RNFL) defects. Seventy-three subjects who...

Clear sight is ‘revelation’ for Yaxley resident following ‘life-changing’ surgery

Retiree Steve Low has rekindled his love for photography.

Pituitary tumours: why are they so often missed?

Part 2: Clinical varieties, anatomical considerations and case report (see also Part 1 and Part 3) For ophthalmologists there are four types of pituitary tumour to be considered, three of which are named according to the hormone secreted, along with...

Surgical technique combining vertical transposition and horizontal plication for mixed deviations

A retrospective case series, assessed adult cases with horizontal and vertical strabismus who had undergone unilateral vertical transposition of the horizontal rectus muscles during a recession-plication over a three-year period. A single surgeon performed all 15 procedures. Postoperative measurements were...

Vertical angle surgical outcomes

The surgical results of all patients undergoing isolated adjustable suture vertical squint surgery for thyroid eye disease are presented for a single centre over five years to explore the predictive factors for surgical planning. This was a retrospective study in...

Traumatic macular holes: reconstructive changes in foveal microstructures and visual predictor analysis, following surgical repair

The purpose of this paper was to investigate the reconstructive changes in foveal microstructures postoperatively and analyse the visual predictors in eyes with surgically closed traumatic macular holes (TMHs). This retrospective study analysed the data collected from 71 eyes of...