What is the white thing in cataract?
The appearance of a white pupil is never a normal condition and requires immediate evaluation by specialists trained in ophthalmology. A cloudy cornea or cataract may be mistaken for a white pupil, but usually a white pupil is due to infection or disease.
What is a mature white cataract?
A mature cataract is opaque, whether white (Figure 1) or brunescent, and, therefore, has complete absence of red reflex. This is not the only challenging characteristic of mature cataracts, however, and trap doors lurk in every step of cataract surgery in these eyes.
What is a Cystotome used for in cataract surgery?
A cystotome-assisted prechop technique for moderate-density nuclei can simplify cataract surgery with a shorter learning curve and effective postoperative outcomes, according to one surgeon. The technique uses a surgeon-bent cystotome to bisect the nucleus in the capsular bag with a Nagahara chopper.
What is the best way to remove a cataract?
Phacoemulsification (a type of ultrasound) is the most common method used to remove the cataract. After the natural lens has been removed, it often is replaced by an artificial lens, called an intraocular lens (IOL). An IOL is a clear, plastic lens that requires no care and becomes a permanent part of your eye.
What causes a white eye?
Light shining off the optic nerve: this is the most common cause of a white reflex or white pupil in a photo. Light entering the eye at a certain angle may be reflected from the optic nerve. This becomes magnified and the white eye effect may be seen. Cataract: this is the second most common cause of a white reflex.
How can you tell the difference between mature and immature cataracts?
Mature cataract: This is a cataract that is opaque, totally obscuring the red reflex. It is either white or brunescent. Immature cataract: This is a cataract characterized by a variable amount of opacification, present in certain areas of the lens.
What is a Cystotome used for?
A cystotome or needle-knife catheter may be used to puncture across the gastric or duodenal wall and establish access into the pseudocyst.
Is it painful to remove cataracts?
Cataract surgery is not painful. While patients are awake during surgery, there is little or no discomfort involved. A mild sedative may be administered before the surgery, which calms the nerves, and eye drops are used to numb the eye.