Examination of a patient who experiences difficulties with eyelids consists of complete eye examination of visual acuity, assessment of refractive error (diopter) using automatic computer refractometer, tonometry (measurement of intraocular pressure IOP), anterior eye segment examination at the slit-lamp, tear film test (Schirmer's test), then the pupils are dilated, to examine the retina, opti nerve and the overall circulation of the eye and establish objective diopter,.
In addition, it is necessary to check the position and function of the eyelids. The height and length of palpebral fissure are also measured during the examination, as well as the distance of the upper and lower eyelid from the corneal light reflex (MRD1 and MRD2), the muscle that lifts the eyelid, and the elasticity of the eyelid. Since the muscles that move the eye are linked to the muscle that raises the eyelid, in such patients it is often necessary to check if there is a proper mobility and function of all the muscles that move the eye. The position of the eyeball in relation to surrounding structures (eyelid and bone) is also measured.
In plastic and reconstructive surgery ophthalmological examination lasts for about an hour.