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2014, Number 4

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Rev Cub Oftal 2014; 27 (4)

Clinical and epidemiological characterization of keratoconus

Pérez PZ, Ulloa OS, Escalona LET, Castillo PAC, Márquez VS

Language: Spanish
References: 15
Page: 598-609
PDF size: 151.94 Kb.


ABSTRACT

Objective: to describe the clinical and epidemiological characteristics of keratoconus treated at "Ramón Pando Ferrer" Cuban Institute of Ophthalmology.
Methods: a descriptive study was conducted in 72 patients (128 eyes) with keratoconus, from January to December 2012, to identify general and ocular diseases, length of time wearing the contact lenses, clinical features, type of astigmatism, keratometric power and central corneal thickness, topography and confocal microscopy.
Results: in the group, 50 % had slow gradual decrease of vision, with no significant medical illnesses. Wearing contact lenses for a long time (67 %), the improvement of visual acuity with correction and myopic compound astigmatism (85,2 %) were significant (p ‹ 0,05). Thinning of the central cornea (493,2 microns) predominated. Keratometric power intervals of the central cornea were equally represented (p= 0,211). The irregular astigmatism (99,2 %) and the central cone (87,5 %) prevailed in terms of topography. Confocal microscopy changes in almost all the corneal layers.
Conclusions: Allergic keratoconjunctivitis is the most associated eye disease. It has topographic pattern of irregular astigmatism with central cone and corrected visual acuity, with 0,6 contact lenses. Confocal microscopy is a valuable tool in the diagnosis of keratoconus.


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