Three groups of visually deprived cats were studied for evidence that one eye gained a competitive advantage over the other during development of central connections. We attempted to detect such an advantage by measuring lateral geniculate cell sizes, by recording the proportion of lateral geniculate Y-cells and the ocular dominance of cortical neurons, and/or by testing visual orienting behavi...

A 77-year-old woman consulted an ophthalmologist because her left eye had “turned black” during the last 6 to 9 months. In addition, she felt that her eye was “sinking in the orbit.” Visual acuity was reduced to 20/30. The right eye was normal with 20/20 vision. The nasal, temporal, and especially, the upper conjunctiva (Fig 1A) of her left eye contained literally myriad dark brown pigment depo...

A MAJyE Hindu patient was admitted to hospital wit'h a large crescentic slough involving the whole of the lower lid except a narrow rim close to the lashes. The limit of the damaged area lay over the inferior border of the malar bone. A smaller crescentic area of the upper lid was gangrenous. The damage had been produced by irritant remedies applied over the eye as a plaster. This method of tre...

We used a chronic recording method to document the kinetics of ocular dominance (OD) plasticity induced by temporary lid closure in young mice. We find that monocular deprivation (MD) induces two separate modifications: (1) rapid, deprivation-induced response depression and (2) delayed, deprivation-enabled, experience-dependent response potentiation. To gain insight into how altering retinal ac...

Classification "Lid lag" True lid lag is virtually specific for hyperthyroidism. It is probably due to increased tone in the levator palpebrae superioris and gives rise to the "staring" appearance. It can be elicited by making the subject follow movements of the finger rapidly up and down. The upper lid can Ibe observed to lag behind the movement of the eyeballs, especially in a downward direct...

Three surgeons operated on upper eye lids of northern Omani villagers for trichiasis due to trachoma using a standardised protocol. The lids were graded as minor trichiasis, five or fewer lashes; major trichiasis, six or more lashes; and lid closure defect. Operative success was defined as no lash/eyeball contact and complete gentle lid closure. One hundred and sixty five lids with major trichi...

One of the characteristic features of the East Asian person's eyelids is the lack of a supratarsal fold. A relaxed upper eyelid skin, due to the lack of supratarsal fixation, causes coverage of the tarsal margin of the upper eyelid. Thus the palpebral fissure looks smaller, giving a slit-eye appearance. Unlike those lids with a natural supratarsal crease, the levator palpebrae muscle and/or apo...

BACKGROUND Natural adhesion between the levator aponeurosis and the subcutaneous layer in the upper lid is essential for an aesthetically pleasing double eyelid. The study aims to emphasize the outer fascia of orbicularis oculi muscle (OFOOM) as a fixation point on the double eyelid surgery. METHODS The authors examined the detailed anatomy of the anterior lamella microscopically during 28 ca...

Apocrine glands of Moll are regular components of primate eyelids. We studied the distribution and localization of these glands in three different primate species, the common marmoset, the rhesus monkey, and the hamadryas baboon. In addition, we tested the primate glands of Moll with antibodies against antimicrobial proteins, cytoskeletal proteins and the androgen receptor. The glands of Moll d...