ISTANBUL escrs

Corneal biomechanics in heavy smokers

Session Details

Session Title: Cornea
Session Date/Time: Sunday 22/02/2015 | 08:30-11:00
Paper Time: 09:03
Venue: Hall 2
First Author: : A.KILAVUZOGLU TURKEY
Co Author(s): :    U. Altiparmak   A. Celebi   C. Cosar        

Abstract Details

Purpose:

To investigate the possible effects of heavy smoking on corneal biomechanics.

Setting:

Cornea and refractive surgery subspecialty practice

Methods:

This retrospective study composed of 100 eyes of 50 (18 women, 32 men) heavy smoker patients and 100 eyes of 50 (22 women, 28 men) non-smoker patients. Heavy smoker was defined as daily cigarette consumption of more than 20 pieces. Mean age was 39.94 ± 13.30 (23 – 67) years in heavy smoker group and 37.40 ± 15.28 (15 – 91) years in non-smoker group. The corneal biomechanical properties of the patients were evaluated with ocular response analyser (Reichert Ophthalmic Instruments, USA). Corneal hysteresis and corneal resistance factor values were compared between two groups.

Results:

Spherical equivalent values were -0.40±2.01 (-7.25–4,75) D in heavy smoker group and -0.99±2.07 (-11.25–2.63) D in non-smoker group (p=0.151). Mean keratometry values were 43.02±1.49 (39.63–46.00) D in heavy smoker group and 43.20±1.31 (40.00–46.63) D in non-smoker group (p=0.364). Mean corneal hysteresis was 11.43±1.93 (6.70–16.80) mmHg in heavy smoker group and 11.42±1.57 (7.90–15.40) mmHg in non-smoker group (p=0.958). Mean corneal resistance factor was 11.14±2.07 (7.20–16.90) mmHg in heavy smoker group and 10.84±1.87 (6.90–15.00) mmHg in non-smoker group (p=0.277).

Conclusions:

Unlike some previous reports in literature, there isn’t any effect of heavy smoking on corneal biomechanics according to this study. But the chronicity of smoking, which was not investigated here, is an important issue that accumulated advanced glycosilation end products may lead to stiffening of the cornea.

Financial Disclosure:

NONE

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