Bockenheimer syndrome—also called Bockenheimer disease or genuine diffuse phlebectasia—is a rare vascular anomaly in which most of the length of one limb (arm ...

Tritanomaly is a blue–yellow color vision deficiency. Your eye has three kinds of cone cells to see color: red-sensing (L), green-sensing (M), and blue-sensing ...

A tritan defect is a problem with seeing and separating colors along the blue–yellow line. It happens when the short-wavelength (S) cones in the retina do not ...

Tritan colour blindness is a problem with telling blue from green and yellow from violet. In this condition, the short-wavelength cone cells in the retina ...

Tritan color blindness is a problem with seeing blue and yellow correctly. It happens when the S-cones (short-wavelength cones) in the retina—or the ...

Dyschromatopsia means a problem seeing or telling colors apart. Colors may look faded, washed-out, wrong, or all very similar. Some people are born with it ...

Congenital tritanopia is a very rare, inherited color-vision condition. People with tritanopia cannot see blue and yellow in the normal way. The problem sits ...

A blue/yellow color vision defect means the eye and brain have trouble telling blue from green and yellow from violet. In the classic form (called “tritan”), ...

Blue-yellow dyschromatopsia is a problem in seeing or separating blue from yellow hues. In the inherited form, the short-wavelength (blue-sensing) cone cells ...

Blue color blindness is a problem with seeing short-wavelength (“blue”) light accurately. It happens when the S-cones (the blue-sensitive cone cells in the ...

Congenital telangiectatic erythema is an inherited disorder that starts at birth and involves the skin, growth, the immune system, the endocrine system, and ...

Bloom–Torre–Machacek syndrome is a rare, inherited condition. It affects growth, skin, the immune system, and cancer risk. Children are small at birth. They ...

Bloom syndrome is a very rare inherited condition that makes a person’s DNA less stable than usual. DNA is the instruction code in every cell. In Bloom ...

Blindness–Scoliosis–Arachnodactyly syndrome is a very rare genetic condition that mainly affects the eyes and the skeleton. People develop progressive vision ...

Meige dystonia is a movement disorder that affects the face. It mainly causes strong, repeated spasms of the eyelid muscles (called blepharospasm). It also ...

Meige syndrome is a neurological movement disorder that affects the face. It happens when two problems occur together: (1) blepharospasm—involuntary blinking ...

Blepharospasm-oromandibular dystonia syndrome is a neurological movement disorder where certain face and jaw muscles contract by themselves. People have ...

Blepharoptosis-Myopia-Ectopia Lentis syndrome is a very rare, inherited eye problem. BMEL is a very rare genetic eye condition seen at birth. People have three ...

Blepharophimosis-Epicanthus Inversus-Ptosis Syndrome (BPES) is a rare condition that affects the eyelids from birth. The eye openings are narrow from side to ...

Blepharophimosis, ptosis, and epicanthus inversus syndrome (BPES) is a condition present from birth. It changes how the upper eyelids and the inner corners of ...