What is meant by dissociated vertical deviation?
Dissociated vertical divergence (DVD) is an ocular motor disorder characterized by a slow, upward drift of 1 eye when the other eye is fixating a target.
What causes dissociated vertical deviation?
Dissociated vertical deviation (DVD) is an eye condition which occurs in association with a squint, typically infantile esotropia. The exact cause is unknown, although it is logical to assume it is from faulty innervation of eye muscles.
How is dissociated vertical deviation treated?
What treatment options are there for DVD? Eye muscle surgery is usually indicated when the DVD is large and/or frequently present. The goal of treatment is to minimize the frequency of the upward drift. In some cases, even after treatment, the DVD may still be seen.
How will you assess dissociated vertical deviation?
Background: Dissociated vertical deviation (DVD) is commonly measured using a prism and alternate cover test (PACT), but some providers use a prism under cover test (PUCT). The aim of this study was to compare a standardized PUCT measurement with a PACT measurement, for assessing the magnitude of DVD.
What is Microtopia?
What is microtropia? A microtropia is a very small squint— defined as measuring less than ten prism dioptres. In microtropia the eye usually turns very slightly inwards (towards the nose) or in some rarer cases very slightly outwards (away from the nose).
Can Brown syndrome cured?
Brown syndrome due to other conditions is more likely to go away without surgery. Treating the underlying health condition may help reduce symptoms. For example, someone with Brown syndrome due to lupus might find it helpful to be treated with corticosteroids.
How do they do strabismus surgery?
During strabismus surgery, the surgeon will set a lid speculum in place to hold the eyelids open and then will make a small incision in the conjunctiva, in order to access the eye muscle. The surgeon will then use a small, delicate hook to isolate the muscle before he or she makes the readjustment.
How do you treat pseudostrabismus?
No treatment is needed for pseudostrabismus. The appearance of misaligned eyes often improves as a child gets older.
What is microtropia?
A microtropia is a very small strabismus— Strabismus is the term used to describe eyes that are not pointing in the same direction and not working together. In microtropia the eye usually turns very slightly inwards (towards the nose) or in some rarer cases very slightly outwards (away from the nose).
What is dissociated vertical deviation (DVD)?
What is Dissociated Vertical Deviation (DVD)? DVD is a condition in which one eye drifts upward [See figure 1] when it is not being used. The eye may drift upward either frequently or infrequently. The amount of drifting may vary during the course of the day.
What are the treatment options for Dissociated vertical deviation?
Discussion Dissociated vertical deviation (DVD) is a unique eye movement disorder for which there are a number of different surgical and non-surgical treatment options. Although there are a number of studies comparing different treatment approaches, the majority are not randomized trials.
What is the best treatment for unilateral diastolic deviation angle deviation?
SR recession combined with posterior fixation suture and Y-splitting seems to be a safe and effective method for surgical treatment of unilateral DVD with bigger deviation angles. Y splitting with less surgical complications and increasing effect with time can be a good alternative to posterior fixation surgery.
What is deviation of the eye?
Deviation – This is defined as the upward drifting of the non-fixating eye when the patient fixates on the target with the other eye. This vertical deviation is often associated with extortion and slight abducting movement of the deviated eye. There is no movement seen in the contralateral eye, as the uncovered eye takes up fixation.
