Ultrasound Biomicroscopy Study Of Accommodative State In Smartphone Abusers

Randa Farouk Kashif

Status: Completed

Conditions: Spasm of Accommodation

Treatments: Diagnostic Test: Ultrasound Biomicroscopy of anterior segment of the eye

Study type: Observational

Funder types: Other

Identifiers

NCT03389009

research ethics committee (Other Identifier)

FMASU MD 43/2017

Details and patient eligibility

About

Detection if there is association between spasm of accommodation and smart phone abuse by ultrasound biomicroscopy on anterior segment of the eye

Enrollment: 80 patients

Sex: All

Ages: 18 to 35 years old

Volunteers: Accepts Healthy Volunteers

Inclusion criteria

1. Age 18 - 35 year.
2. Smart phone excessive use.
3. Emmetrope and myope patients.

Exclusion criteria

1. Hypermetrope patients.
2. Any form of tropia.
3. Anterior segment diseases either congenital or acquired.
4. Previous intraocular surgeries.
5. Presbyopic subjects.
6. Drugs induced spasm of accommodation: psychiatric drugs, pilocarpine, physostigmine, echothiophate, prostigmine, isoflurophate, muscarine, digitalis overdose and with sulphonamides
7. CNS diseases : Neurosyphilis, Raeder paratrigeminal neuralgia syndrome, cyclic oculomotor palsy, pineal tumor, Chiari malformation, pituitary tumor, metabolic encephalopathy,

Trial design

80 participants in 2 patient groups

smartphone abusers

Description:

Auto refractometer without cycloplegia Uncorrected visual acuity (logMAR conversion). Anterior segment slit lamp examination UBM examination settings :Supine decubitus position.5150 Vumax (Sonomed, USA) under standard illumination Parameters that will be measured: corneal thickness, anterior chamber depth, angle to angle distance, cornea-posterior capsular lens distance, lens thickness, pupillary diameter, angle of anterior champer and trabecular-ciliary process distance. Cycloplegic refraction UBM examination will be repeated after cycloplegia with the same settings. The patients found to have spasm of accommodation will be subjected to ways to relief the spasm of accommodation and repetition of UBM if possible

Treatment:

Diagnostic Test: Ultrasound Biomicroscopy of anterior segment of the eye

smartphone non users

Description:

Auto refractometer without cycloplegia Uncorrected visual acuity (logMAR conversion). Anterior segment slit lamp examination UBM examination settings :Supine decubitus position.5150 Vumax (Sonomed, USA) under standard illumination Parameters that will be measured: corneal thickness, anterior chamber depth, angle to angle distance, cornea-posterior capsular lens distance, lens thickness, pupillary diameter, angle of anterior champer and trabecular-ciliary process distance. Cycloplegic refraction UBM examination will be repeated after cycloplegia with the same settings. The patients found to have spasm of accommodation will be subjected to ways to relief the spasm of accommodation and repetition of UBM if possible

Treatment:

Diagnostic Test: Ultrasound Biomicroscopy of anterior segment of the eye