You searched for "Optics"

1866 results found

OCT measurements of eye muscles for Grave’s disease

The purpose of this study was to use optical coherence tomography (OCT) to assess horizontal rectus muscle thickening in patients with active and inactive Grave’s ophthalmopathy (GO) compared to healthy controls. This was a cross section observation study of rights...

Comparison between findings in OCTA and FA in patients with diabetic retinopathy

In this study the authors present a prospective cross-sectional comparative study of typical findings of diabetic retinopathy to analyse the agreement between the image modalities of optical coherence tomography angiography (OCTA) and fluorescein angiography (FA). Fifty-three eyes of 42 patients...

OCT biomarkers in asymmetric anti-VEGF response in bilateral diabetic macular oedema

This study aimed to identify optical coherence tomography (OCT) biomarkers for predicting response to anti-VEGF treatment in diabetic macular oedema (DMO). Bilateral DMO patients with asymmetric response to a loading dose of anti-VEGF (ranibizumab / aflibercept) treatment were retrospectively studied....

Does religious fasting affect intraocular pressure or retinal parameters?

Nearly one billion Muslims fast every year during the month of Ramadan. Due to the difference between the lunar and solar calendars, religious fasting time can range from 11 to 17 hours per day. This prolonged abstinence from food and...

Corneal and astigmatic changes after medial rectus recession surgery of 6mm

This study prospectively compared changes in astigmatism before and two months after unilateral recession of medial rectus muscles using Pentacam. The fellow unoperated eye was used as the control eye. The study included 66 eyes and 33 patients; 21 males,...

Use of multimodal imaging in diagnosis and treatment planning of traumatic incomplete muscle laceration

This paper discusses details of incomplete rectus muscle lacerations and the unique role of multimodal (local anterior segment optical coherence tomography (ASOCT) and orbital CT/MRI) imaging techniques in the repair of such injuries. This was a retrospective analysis of traumatic...

Deep Dive Astigmatism: Master Astigmatism in Cataract Surgery

Course Director: Milind Pande Faculty: Ashraf Armia, Laura Maubon, Mayank Nanavaty, Course Overview: Embark on a transformative journey through this dynamic course, tailored to empower ophthalmologists and cataract surgeons with the expertise needed to master astigmatism management in cataract surgery....

Randomised controlled trial for large-angle exotropia surgery

The purpose of this study was to investigate single eye, single setting surgical options to correct 80–90PD of exotropia with two options of muscle transplant and suture hang-back recession. There was retention of anatomical limits of 6mm resection for medial...

Comparison of bupivacaine injection vs. mini-tenotomy for small angle deviations

Bupivacaine hydrochloride is an aminoacyltype local anaesthetic. Injection into extraocular muscles elicits a myotoxic response destroying striated muscle fibres but sparing satellite cells, nerves and vessels. Preserved satellite cells proliferate to form new muscle fibres, causing muscle hypertrophy and greater...

Comparison of surgical options for basic intermittent exotropia

This study compared the outcomes of three surgical options from one surgeon, to treat basic intermittent exotropia. Surgeries included bilateral lateral rectus recession (BLR), unilateral lateral / medial rectus recession / resection (RR), and unilateral lateral rectus recession and medial...

Comparison of two surgical procedure options for unilateral superior oblique palsy

This study compares two surgical options for management of unilateral superior oblique palsy with angles >20PD. Group 1 underwent one vertical muscle surgery – ipsilateral inferior oblique anterior transposition plus resection (IOATR). Group 2 underwent two vertical muscles surgery –...

In conversation with Andrena McElvanney (President, MCLOSA)

We spoke to Andrena about MCLOSA's annual meeting this November, key developments in cornea and external eye disease, and plans for the association’s 30th anniversary. Andrena McElvanney (top, second from right) and the OSI council members. The Medical Contact Lens...