You searched for "keratoconus"

164 results found

Silent keratitis in failed graft

This study examined rates of asymptomatic keratitis in failed full thickness corneal grafts, which were not picked up clinically preoperatively. During a five year period 53 penetrating keratoplasties (PK) were performed for long-standing graft decompensation with stromal opacity and /...

Placement of an eyelid weight as an upper lid spacer for lagophthalmos

Upper lid loading with a weight is a well described procedure for the treatment of lagophthalmos and exposure keratopathy. The authors describe a modification of this procedure whereby the levator aponeurosis is recessed in combination with supratarsal weight implantation. The...

A tarso-conjunctival flap for paralytic ectropion

This is a review of 110 patients with paralytic ectropion who underwent a lateral tarso-conjunctival flap procedure. The technique involves fashioning a 4-8mm wide lateral tarso-conjunctival flap in a similar way to a lateral Hughes flap. This is then sutured...

Quiz Apr/May 2023

History A 76-year-old female presented at her local district general hospital with right decreased visual acuity, glare, and foreign body sensation, in addition to longer-term dry eyes. She was otherwise well. Her past medical history included hypertension. On examination: vision...

Ocular Surface Disorders

This publication provides an excellent overview of ocular surface disease (OSD). Dry eye disease (DED) is the commonest OSD. There has been a recent explosion, both in terms of its diagnosis and the treatments that are available. A textbook that...

IOL power calculation formulas for myopic eyes undergoing cataract surgery after excimer laser

The authors set out to compare the accuracy of four no-history formulas: Barrett True-K, Haigis-L, Shammas-PL, and Triple-S to calculate the intraocular lens (IOL) power in eyes with previous myopic photorefractive keratectomy or laser in situ keratomileusis, according to their...

The revolutionary Chronos Automated Binocular Refraction System with SightPilot® guided refraction software

Topcon Chronos is a complete digital refraction solution combining binocular objective autorefraction, keratometry and subjective refraction in a single device.

The Real Top Gun: Professor Steve Schallhorn

Steve Schallhorn: Fighter Pilot. In the spring of 1987, I travelled to the cinema at Hendon Central in London with some school friends to watch the newly released movie The Witches of Eastwick starring Jack Nicholson and Michelle Pfeiffer. Unfortunately...

Silicone oil in rhegmatogenous retinal detachment

Silicone oil (SO), used in complicated retinal detachments, is associated with complications such as cataract, increased intraocular pressure (IOP), keratopathy, cystoid macular oedema (CMO), epiretinal membrane (ERM) and loss of vision. Emulsification of oil can also lead to migration of...

Risk factors for lens dislocation post cataract surgery

This retrospective cohort study in Korea assessed the risk factors for intraocular lens (IOL) dislocation. They used national data of 2,162,191 patients who had had cataract surgery between 2009 and 2016. They excluded any patient who had an IOL dislocation...

Silicone oil migration presenting as an eyelid cyst

The author presents a single case report of a rare complication of silicone oil tamponade, silicone oil migration, after pars plana vitrectomy. A seven-year-old female, with a history of vitrectomy one year prior for penetrating eye trauma, presented with a...

Are corneal guttata an additional risk factor in complicated cataract surgery needing a future corneal transplant?

This registry-based cohort study from Sweden utilised data from the Swedish National Cataract Registry and the Swedish Cornea Transplant Registry. Patients who underwent phacoemulsification with a posterior intraocular lens between 2010 and 2012 numbered 192,476. Of these cases, 288 underwent...