You searched for "Optics"

1420 results found

Cancer associated retinopathy

Abdul Muhyemin Tarin reviews the presentation, pathophysiology and management of this paraneoplastic syndrome. Case presentation A 60-year-old hypermetropic female patient presented with several months’ history of painless blurred vision. Visual acuity (VA) was 6/24 and 6/9-1 in right and left...

Radiation retinopathy

The authors review the current treatment options for this condition. Radiation retinopathy (RR) occurs as a complication after exposure to any type of radiation (external beam, plaque brachytherapy and stereotactic radiosurgery) in the orbital or adnexal region. These include nasopharyngeal...

How to be ‘appy’ on call: a brief guide to mobile phone applications for the on-call ophthalmologist

One of the unexpected outcomes of the COVID-19 pandemic has been an increased reliance and integration of computer technology within hospital medicine. The need for stricter infection control policies during and after lockdown has seen a boom in technology utilisation....

The results of the last survey Feb21

Once again, I am grateful for the responses and read the results with interest. I am always surprised by the amount of practice variation I see. I fully accept there is art in what we do and there is no...

Keeping watch

Although it’s autumn, it’s not too cold and the slight breeze blowing up from the sea does not make me regret leaving my jacket in clinic. It’s a strange site; hundreds of hospital staff standing on either side of the...

Obituary: Sohan Singh Hayreh (1927 - 2022)

Sohan would have been 95 on 6 November this year, but due to complications of COVID-19, he passed away on 29 September.

Headaches in ophthalmology (part 1)

Ophthalmologists see a large number of patients with headaches or facial pain in the ophthalmic outpatient clinics or in emergency clinics. Over two articles, I will discuss several causes of headaches, ocular manifestations and proposed management and referral options. It...

A single intravitreal bevacizumab in the treatment of breast carcinoma related choroidal metastasis

Case report Choroidal metastasis represents a common form of intraocular malignancies occurring in up to 10% of patients with systemic metastasis [1]. The most common primary sites of ocular metastasis are breast carcinoma in women and lung carcinoma in men,...

The results of the last survey Oct20

The point of this series is to find variations in practice and to raise them to you, the readership, so you can review and reflect upon them. I am aware there is not always a ‘correct’ way of doing things,...

Quiz Feb/Mar 2024

History A 21-month-old boy presented to his local ophthalmology department with a left proptotic eye from a growing cystic lesion known to be present from birth. Notes taken on presentation were: Known left microphthalmia with chorio-retinal coloboma, contralateral eye was...

The paediatric cataract: an overview of the diagnosis and management

In this second article (see first article here), Samuel Aryee and Rhys Dumont Jones review the challenges involved in managing this condition. Examination and diagnosis Cataracts in children can appear in a variety of forms, each presenting in a different...

The interpretation and use of ultrasound biomicroscopy (part 1)

Ultrasound Biomicroscopy (UBM) has become increasingly important for the diagnosis of a variety of anterior segment pathologies. Most ophthalmologists are familiar with conventional B-scan ultrasonography techniques, which operate at lower sound frequencies (7.5 to 20MHz). UBM is an ultrasound technique...