Table 2.

The morphology and subsequent development of each oocyte following ICSI

Oocyte	Morphology	Spindle position	Fertilisation check (pronuclear number)	Day 2 Morphology	Day 3 Morphology	Fate
1	Large central vacuole	None seen	3PN	–	–	–
2	Large central vacuole	Correct position	0PN	–	–	–
3	Medium central vacuole	Correct position	2PN	2C②	6C③	ET
4	Massive PB, Central fragments	None seen	2PN (late)	U/C	4C④	D/C
5	2 PBs, Highly viscous cytoplasm	None seen	2PN	3C②	2C③	D/C
6	Large central vacuole	Correct position	0PN	–	–	–
7	Fragmented PB	Correct position	2PN (late)	4C②	5C③	ET
8	Multiple central vacuoles, Misshapen	Displaced (5’O clock)	Necrotic	–	–	–
9	Large central vacuole	Correct position	2PN	2C③	3C③	D/C
10	Misshapen, Large central fragments	Correct position	0PN	–	–	–
11	Granular	Displaced (2’O clock)	0PN	–	–	–
12	Large central vacuole	Correct position	2PN (late)	1C③	4C③	D/C
13	Large PB	Displaced (5’O clock)	2PN	1C④	4C④	D/C

Key: D/C = discarded, ET = Embryo transferred, U/C = Uncleaved