Structural and functional characteristics of the healthy macula using the OPKO OCT/SLO
2017 (English)Independent thesis Basic level (degree of Bachelor), 10 credits / 15 HE credits
Student thesis
Abstract [en]
Purpose: To establish normative values for macular light sensitivity in healthy subjects using the OPKO SD-OCT/SLO microperimetry device. This instrument allows direct superimposition of macular function with its structure measured with OCT.
Methods: 32 normal subjects with mean age of 25 years participated in this study. A 56 point grid covering and area of 18 by 22 degrees of visual field was used. Each subject was tested for the dominant eye. Additional control measures included visual acuity and contrast sensitivity.
Results: The mean (SD) visual acuity in the tested eye was −0.09 (0.088) logMAR. The mean contrast sensitivity in the tested eye was 1.61 (0.102) log contrast. The mean total threshold in the tested eye for all points was 16.60 (1.53) dB. There was a statistically significant correlation between the retinal sensitivity and the total macular thickness, r = −0.392, p-value 0.026 for 48 points per participant.
Conclusions: In this study there was a correlation between the retinal sensitivity and thickness of the macular zone. The values obtained using the microperimetry in undilated eyes was similar to values obtained with dilation. Retinal sensitivity values obtained using this instrument are in agreement with previous studies.
Place, publisher, year, edition, pages
2017. , p. 24
Keywords [en]
Microperimetry, healthy adults, OPKO SD/SLO, retina sensitivity
National Category
Ophthalmology
Identifiers
URN: urn:nbn:se:lnu:diva-65302OAI: oai:DiVA.org:lnu-65302DiVA, id: diva2:1109503
Subject / course
Optometry
Educational program
Optometry Programme, 180 credits
Supervisors
Examiners
2017-07-122017-06-142017-07-12Bibliographically approved