This is a rare condition where a person is born with a partially or completely absent iris, resulting in a very large "pupil."Aniridiausually affects both eyes and is accompanied by other serious eye problems such ascongenital cataracts,glaucoma, incomplete development of the retina and optic ne...
The size of your pupils is controlled by tiny muscles in the colored part of your eye (iris) and theamount of light reaching your eyes. In bright light, your pupils constrict (get smaller) to prevent too much light from entering your eyes. In dim lighting, your pupils dilate (get larger...
Mydriasis can be a normal response of your eye to changing levels of light, but sometimes it can be a sign of something more serious. If your pupils don’t change when the light changes, or one is noticeably larger than the other, you may need to talk to youreye doctor. In these ca...
inspection of thePupils and Iris. The doctor will check for the presence of synechiae and uveitis. Size, shape, and reaction to light should be evaluated during the ophthalmoscopic examination. AME's will look for coloboma, reaction to light, and any disparity in size between the two pupils...
One iris that is higher than the other A tilted head to compensate for vision problems Pain located above the eyebrow, more common in cases of idiopathic fourth nerve palsy or diabetes Some individuals may not experience double vision, though. This is especially true for individuals who have had...
@strawCake - Having your pupils dilated is definitely one of the worst experiences I have had too. For myself I have oodles of eye issues and my optometrist always wants to take a good look into my eyes, which leads to fairly regular appointments with her for pupil dilation. ...
Lens.This is the area of a cat’s eye located right behind the iris. The lens can change shape to focus the light on the retina. Retina.This is the part of the cat’s eye that controls what cats can see. It is in the back of the eye and is where the light entering through the...
The anatomy of the eye is complex. The main structures of the eye include the following: Cornea: clear tissue in the very front of the eye Iris: colored part of the eye surrounding the pupil Pupil: dark hole in the iris that regulates the amount of light going into the eye ...
Aperturecan be defined as the opening in a lens through which light passes to enter the camera. It is an easy concept to understand if you just think about how your eyes work. As you move between bright and dark environments, the iris in your eyes either expands or shrinks, controlling ...
In addition, the eyes may appear red and water excessively. Another symptom of pigmentary glaucoma includes Krukenberg's Spindle. Krukenberg Spindle's is a thin, vertical band of pigments that accumulate on the cornea. This buildup is caused by pieces of pigment from the back of the iris....