| Summary: | Aim:
Investigation of the efffects of using topical anesthetic on axial length (AL),
average keratometry (AK), central corneal thickness (CCT), anterior chamber
depth (ACD), intraocular lens power (IOLP).Patient and methods: 15 female and 15 male emetrop patients , applied to our our polyclinic
for routine eye examination, who don’t have any ocular or systemic disease,
don’t use medication related to ocular or systemic diseases. The cases were
between between 18-26 years old and avarage age was 22,80±2,29 years. 30 eyes of those 15
people were examined. The right eyes were taken as the study group while left
eyes were taken as the control group.
Study group (right eyes) was separated in to 3 groups with regard to time
intervals of measurements as; before topical anesthetic (0.5 % proparacaine
hydrochloride, Alcaine, Alcon), after 20 seconds and after 2 minutes. No
anesthetic were applied to control group (left eyes) although all the
measurements were made at the same time intervals. All measurements were made
with optical biometry device (ALScan, Nidek, Japan). Results:
There was no change in all the measurements of
the control group's before drop,
after 20 sec and after 2 mins (p>0.05) intervals. There wasn’t any
significant difference in both study group's and control group's AL, AK, ACD
and IOLP measurements between their own time intervals(p>0.05). However CCT
measurements of after 20 sec were significantly higher than both before drop
and after 2 minutes' intervals, as well as compared to control group's
measurements (p<0.05). Although no significant difference was observed
between before drop, after 2 mins and control group (p>0.05).
Conclusion:
In this study, we observed that anesthetic drop doesn’t have an effect on AL,
AK, ACD and IOLP measurements. However we suggest taking CCT measurement which
is made 20 sec after the drop into consideration just because it was
significantly different from other groups, especially when examining the
intraocular pressure.
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