Case Study 9 - CC: White pupils
The pediatrician was alarmed when he finally got a chance to evaluate the 2 hour-old newborn and was unable to get the usual red reflex in either eye with the indirect ophthalmoscope. The reflection in both eyes was grayish white. The mother remembers having flu-like symptoms in her early pregnancy but attributed it to being a part of normal pregnancy.
Past Ocular History:
Past Medical History:
Birth history: 38 week gestation, normal spontaneous vaginal delivery, no complications
Past Family Ocular History:
No history of eye disease, blindness or congenital cataracts
Will live at home with mother and father. Mother denies smoking, alcohol use or other drug use during pregnancy.
Visual Acuity (cc):
OD: Reacts to light
OS: Reacts to light
OD: Not tested
OS: Not tested
Equal, round and reactive to light, no APD.
Full OU. No nystagmus.
Confrontational Visual Fields:
Normal, both sides
|Lids and Lashes||Normal OU|
|Anterior Chamber||Deep and quiet OU|
|Lens||Dense central opacities OU|
|Anterior Vitreous||No view|
Dilated Fundus Examination:
|OD||Unable to perform due to poor view|
|OS||Unable to perform due to poor view|
This is a case of leukocoria, or an abnormal white pupillary reflex, likely due to congenital cataracts. Differential diagnosis of leukocoria includes the following: retinoblastoma, congenital cataracts (from infectious [ex. intrauterine rubella infection] or congenital etiologies [ex. galactosemia, Lowe’s syndrome, familial]), retinopathy of prematurity, persistent hyperplastic primary vitreous, Coat’s disease, familial exudative vitreoretinopathy, retinal detachment, coloboma and corneal opacities.
Congenital cataracts can form due to intrauterine infections, metabolic disorders, a malignancy, or a genetic defect. Intrauterine infections that can result in congenital cataracts include rubella (German measles, the most common infectious cause), rubeola, cytomegalovirus, herpes simplex, herpes zoster, poliomyelitis, influenza, Epstein-Barr virus, syphilis, and toxoplasmosis. Metabolic disorders that can cause congenital cataracts include galactosemia and diabetes mellitus. Systemic syndromes such as Lowe’s syndrome (oculocerebrorenal syndrome) or Alport syndrome may also be associated with congenital cataracts. The differential of leukocoria, or a white light reflex, must also include retinoblastoma, the most prominent intraocular malignancy in children.
A complete medical history including maternal illness or drug use during pregnancy is very important. Family ocular history of congenital blindness, congenital cataracts, strabismus, or amblyopia should also be addressed. A complete eye exam including visual assessment of each eye alone and an attempt to determine the visual significance of the cataract is necessary. B-scan can be helpful to evaluate the posterior eye to rule out posterior abnormalities. A physical examination to determine signs and/or symptoms of systemic intrauterine-acquired infections is essential.
Cataract surgery is the treatment of choice and should be performed as soon as possible to minimize the risk of amblyopia and sensory nystagmus. Cataract extraction with primary posterior capsulectomy and anterior vitrectomy is the procedure of choice due to the high rate of capsular opacification. Most patients are left aphakic and are fitted with a contact lens shortly after surgery. Secondary intraocular lens implantation can be done later in life after the eye has matured. After cataract extraction, patients should be assessed and treated for amblyopia. Life-long follow up is important to maximize visual potential.
- A baby is brought to the pediatrician for her 4 month-old well baby checkup. Which finding would be concerning and merit an ophthalmology referral?
- baby opens her eyes and lids really wide if the lights are turned down
- mom reports that in pictures the R pupil looks bright orange with the camera flash but not the L pupil - a check of the pupillary reflex with the direct ophthalmoscope confirms her findings
- baby pays attention to a toy but looses interest rapidly
- mom reports some light yellow discharge in the eyes when the baby gets a cold - an exam of the lids shows white discharge in the nasal corner of both eyes
- What would happen if a cataract is removed later than 7yrs?
- the cataract would be too dense and increases the risk of complications with surgery
- the retina will not form a fovea causing permanent decrease in vision
- the R and L occipital lobes will develop differently
- the eye will have an APD
b. mom reports that in pictures the R pupil looks bright orange with the camera flash but not the L pupil - a check of the pupillary reflex with the direct ophthalmoscope confirms her findings
An abnormal red reflex on direct ophthalmoscopy needs urgent referral to ophthalmology.
What would happen if a cataract is removed later than 7yrs?
c. the R and L occipital lobes will develop differently
Development of visual pathways would be uneven since the input from the cataractous eye is blurrier than the other eye.
Ophthalmic Case Study 1Acute right eye pain
Ophthalmic Case Study 10Blurry vision in the left eye for 2 weeks
Ophthalmic Case Study 2Red, itchy eyes
Ophthalmic Case Study 11Acute pain and burning in L eye
Ophthalmic Case Study 3Acute left eye pain and blurry vision
Ophthalmic Case Study 12Blurry vision in both eyes and headaches
Ophthalmic Case Study 4Left eye pain and fuzzy vision 2 days after eye surgery
Ophthalmic Case Study 13"Cannot see well" from left eye
Ophthalmic Case Study 5Girl rubbing her R eye after trauma
Ophthalmic Case Study 14Blurry vision in both eyes
Ophthalmic Case Study 6Red eye and pain on the left
Ophthalmic Case Study 15Eye irritation and dryness
Ophthalmic Case Study 7Vision loss L eye
Ophthalmic Case Study 162 brief episodes of vision loss in the R eye
Ophthalmic Case Study 8Crossed eyes
Ophthalmic Case Study 17Routine eye exam
Ophthalmic Case Study 9White pupils
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