Posters

Topo-guided LASIK for correction of complex myopic astigmatism in combination with refractive amblyopia and asthenopic syndrome: clinical case

Poster Details

First Author: O.Napylova RUSSIA

Co Author(s):    L. Ramazanova   E. Yazykova   R. Shamratov   K. Protasova   E. Pavlova   R. Alieva     

Abstract Details

Purpose:

Analyze the anatomical and functional results of topo-guided LASIK in a patient with complex myopic astigmatism in combination with refractive amblyopia and asthenopic syndrome.

Setting:

Private Healthcare Institution «Medical Sanitary Unit»

Methods:

Patient, 25 y.o,addressed with complaints of low visual acuity,asthenopic syndrome and intolerance of correction from childhood. After conducting a standard ophthalmological examination, the following data were obtained: Visual acuity without correction: OD= 20/200 OS=20/200. Spherical equivalent OD=3,0D/OS=3,25D. Cylindrical equivalent OD=1,25D/OS=1,0D. Maximum visual acuity with correction OD=20/40 OS =20/40.Ultrasound Biometrics: OD= 24.00/OS =24.06mm. Pachymetry: OD= 553/OS =545. Keratotopography OD/OS:pronounced decentralization. The personalized ablation was carried out using the software "Contoura" of the Allegretto WaveLight EX 500 excimer laser (Alcon), with a diameter of the optical zone of 6.5 mm. Thickness of corneal flap = 100 μm (mechanical microkeratome Moria Evolution 3E).

Results:

The examination on the 1st day after the operation showed: visual acuity without correction OD = 20/20 OS = 20/20, spherical equivalent OD = 0.0 D / OS = 0.0 D. Cylindrical equivalent OD = 0.25D / OS = 0.25D. The examination after 1 month showed similar data. The analysis of the examination performed on the 1st day after the operation and after 1 month showed a visual acuity stably exceeding the maximum corrected visual acuity before the operation, due to a decrease in the degree of astigmatism to the physiological and absence of higher order aberrations.

Conclusions:

Low visual acuity and intolerance of spectacle or contact correction from childhood, formed in the patient a functional condition, characteristic of refractive amblyopia with a pronounced asthenopic syndrome.The use of the personalized ablation program «Contoura» made it possible to form a new corneal profile in this patient, to obtain a stable high visual acuity (above the maximum corrected visual acuity before surgery), to relieve the patient of asthenopic complaints, and to significantly improve the quality of his life.

Financial Disclosure:

None