Comparison of colour contrast sensitivity in eyes at high risk of neovascular age-related macular degeneration with and without subsequent choroidal neovascular membrane development.
Eye (Lond)
; 37(2): 297-302, 2023 02.
Article
in En
| MEDLINE
| ID: mdl-35058600
ABSTRACT
BACKGROUND:
Neovascular age-related macular degeneration (nAMD) is a leading cause of blind registrations in the elderly. Unfortunately, it is difficult to detect the early stage of the disease, when treatment is more likely to be successful. Subjects with very early disease are likely to have abnormal macular function, even in the pre-symptomatic stage. In this study, colour vision was evaluated to establish if subjects at high risk of developing nAMD can be identified, thus allowing earlier diagnosis and possible treatment.METHODS:
Colour contrast sensitivity (CCS) was evaluated over time in the fellow unaffected eye of subjects with unilateral nAMD. Participants were divided into Group 1 (182 participants) or Group 2 (15 participants) according to whether nAMD did not or did develop in the study period respectively and the two groups were compared.RESULTS:
CCS was increased (i.e. worse colour vision) compared with the age-matched reference range in a high proportion of fellow eyes in both Groups 1 and 2. Global mean CCS values did not show statistically significant differences between the two groups. However, there was a statistically significant difference between mean Group 1 CCS values and the last CCS value prior to nAMD diagnosis from Group 2 subjects.CONCLUSION:
This study shows that in patients with unilateral nAMD, colour vision is frequently abnormal in the fellow unaffected eye. Abnormal CCS does not predict the development of nAMD within the 12 month period of the study and therefore it is not a viable screening tool for this pathology.
Full text:
1
Collection:
01-internacional
Database:
MEDLINE
Main subject:
Retinal Neovascularization
/
Choroidal Neovascularization
/
Wet Macular Degeneration
/
Macular Degeneration
Type of study:
Diagnostic_studies
/
Etiology_studies
/
Prognostic_studies
/
Risk_factors_studies
Limits:
Aged
/
Humans
Language:
En
Journal:
Eye (Lond)
Journal subject:
OFTALMOLOGIA
Year:
2023
Document type:
Article
Affiliation country:
United kingdom