Argus II retinal prosthesis for retinitis pigmentosa in the Middle East: The 2015 Pan-American Association of Ophthalmology Gradle Lecture

Table 1 Clinical data of the 10 patents implanted who received the Argus II system

Patient no	Eye	Gender	Age (years)	Axial length (mm)	Lens Status	Peeling of posterior hyaloid	Postoperative complications	No. of functioning electrodes	No. of rehab sessions
1	Right	Male	45	24.96	Pseudophakic	YES	Conjunctival erosion	57	8
2	Left	Female	52	24.70	Aphakic	NO	Electrical Array Malposition	47 +	7
3	Right	Female	29	22.76	Pseudophakic	NO	NO	59	6
4	Left	Male	45	25.83	Pseudophakic	YES	NO	56	3
5	Right	Male	38	23.75	Pseudophakic	NO	NO	37*	3
6	Left	Male	55	24.05	Pseudophakic	YES	Mild vitreous hemorrhage	55†	2
7	Right	Male	33	24.20	Phakic	YES	NO	58	5
8	Left	Male	47	22.76	Phakic	YES	High IOP	60	2
9	Right	Female	26	23.74	Pseudophakic	NO	NO	60	0
10	Right	Male	43	22.90	Phakic	NO	NO	59	0

+ loss of 10 electrodes channels during electronic array tacking
*18 electrodes with high impedance value were observed at the end of the surgery. Electrode channels were damaged during the extra ocular placement of the device
^†After the tack insertion into the vitreous chamber, the surgeon observed that the tack was misaligned with the tack tool tip. When the surgeon removed it from the vitreous chamber, the tack dislodged from the tack tool and fell inside the vitreous cavity. The tack was managed as a foreign body and removal procedure was performed
IOP Intraocular pressure, No. Number, mm millimeters, RE Right eye, LE Left eye, Gen Gender

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