Inflammatory Sixth Nerve Palsy Post-COVID-19 Vaccination: Magnetic Resonance Imaging Findings.

Sixth nerve palsy is the most common post-vaccination oculomotor palsy. It is generally transient with most patients making a complete recovery. We report the case of a 46-year-old healthy male patient who presented with a painless sixth nerve palsy after the second dose of the Pfizer BioNTech COVID-19 vaccine, which recovered over the course of the next month.

Visual Loss after Platelet-rich Plasma Injection into the Face.

Platelet-rich plasma has become one of the most widely used facial cosmetics fillers. We evaluated four patients treated by cosmetologists with platelet-rich plasma injections who developed irreversible blindness due to iatrogenic occlusion of the ophthalmic artery; immediately after the injection in the glabellar area in three cases and in the nasolabial fold in one case. Early after the injections the fundi of all patients demonstrated central retinal artery and choroidal occlusions.

Optical coherence tomographic artefacts in diseases of the retinal pigment epithelium.

Aims: To show optical coherence tomography (OCT) artefacts in images from patients with retinal pigment epithelium detachment and retinal laser scars when OCT protocol analyses were applied.

Methods: All OCT retinal scans using OCT-3000 (software 4.02) were reviewed over a three-month period.

Repeat reliability of the multifocal visual evoked potential in normal and glaucomatous eyes.

Purpose: To investigate the repeat reliability of the multifocal visual evoked potential (mfVEP).

Patients And Methods: Fifteen subjects with no known abnormalities of the visual system and 10 patients with glaucoma participated in the study. Monocular mfVEPs were recorded on two separate days, using a 60-sector, pattern-reversal dart board array.

Association between sleep apnea syndrome and nonarteritic anterior ischemic optic neuropathy.

Objective: To determine if patients with nonarteritic ischemic optic neuropathy (NAION) have sleep apnea syndrome (SAS), an entity characterized by repetitive upper airway obstructions during sleep, inducing hypoxia and sleep disruption.

Methods: We recruited 17 patients with NAION and 17 age- and sex-matched controls from patients referred for treatment because of suspected restless legs syndrome. We performed overnight polysomnography and determined the respiratory disturbance index during night sleep, a value used to diagnose and grade SAS.