Stereopsis in Amblyopia using Random Dot and Real Depth Stereotests V1
Research type
Research Study
Full title
Stereopsis in Anisometropic Amblyopia using Random Dot and Real Depth Stereotests.
IRAS ID
189517
Contact name
Alexandra Lindstrom
Contact email
Sponsor organisation
Hull and East Yorkshire NHS Trust
Duration of Study in the UK
0 years, 6 months, 1 days
Research summary
The proposed study will look at stereopsis (3D vision) in children between the ages of 4 and 7 years old with anisometropic amblyopia; this is where there is a need for glasses with one eye needing a stronger lens than the other. Stereopsis will be measured using 2 tests, the Randot and the Frisby (FNS) in order to compare the measurements gained using each test. The tests have previously been found to give different results in adult patients with artificially induced anisometropia. Vision will be measured using a standard children’s letter test called the Keeler Crowded LogMAR test. This involves reading letters of reducing size. Contrast sensitivity will also be measured. This involves reading letters from a chart as they get more faint. The results from the 3D tests will be compared to the level of vision and contrast sensitivity to give a possible explanation for why there is a difference between the 3D tests. This will be repeated over 3 visits every 4-6 weeks. Children will be tested with a parent present within the orthoptic department where they will be attending for their routine eye appointments. No additional tests will be carried out from a standard eye appointment and no additional appointments will be required. This results in no extra cost for the orthoptic department or parent. Children will be recruited from the orthoptic department where they will be attending for visual assessment. The overall aim is to show whether there is a difference in the measure of stereopsis using the 2 tests and provide an explanation to aid with future development of stereotests and the choice of tests clinicians choose to use.
REC name
HSC REC A
REC reference
15/NI/0246
Date of REC Opinion
19 Nov 2015
REC opinion
Further Information Favourable Opinion